A permit expired two weeks ago and has not been renewed. May the inspector/mechanic keep inspecting during the grace period?11 CSR 50-2.080(6), Missouri Code of State Regulations, read 2026-10-15
An inspector/mechanic fails a reexamination. How long must pass before the next test?11 CSR 50-2.080(5), Missouri Code of State Regulations, read 2026-10-15
An inspector/mechanic refuses to be reexamined. What happens to the permit?11 CSR 50-2.080(5), Missouri Code of State Regulations, read 2026-10-15
An inspector/mechanic's permit was revoked. What is required before it is reinstated?11 CSR 50-2.080(4), Missouri Code of State Regulations, read 2026-10-15
Besides a year of experience or a vocational course in automotive mechanics, what else qualifies a person to apply as an inspector/mechanic?11 CSR 50-2.080(2), Missouri Code of State Regulations, read 2026-10-15
For how long is an inspector/mechanic permit valid?11 CSR 50-2.080(4), Missouri Code of State Regulations, read 2026-10-15
How must an inspector/mechanic permit be kept at the station?11 CSR 50-2.060(2), Missouri Code of State Regulations, read 2026-10-15
How old must an inspector/mechanic be?11 CSR 50-2.080(2), Missouri Code of State Regulations, read 2026-10-15
Show all 268 questions (260 more)
Inspector/mechanic permits and the test, continued
In the rule's definitions, how long can a suspension of an inspection permit last?11 CSR 50-2.010(1)(P), Missouri Code of State Regulations, read 2026-10-15
Missouri issues two types of inspector/mechanic permit. What does the restricted type cover?11 CSR 50-2.080(7), Missouri Code of State Regulations, read 2026-10-15
One way to qualify as an inspector/mechanic is practical experience as an automotive mechanic. How much is required?11 CSR 50-2.080(2), Missouri Code of State Regulations, read 2026-10-15
Until how long after it expires can an inspector/mechanic permit be renewed without a reexamination?11 CSR 50-2.080(6), Missouri Code of State Regulations, read 2026-10-15
What can failure to comply with the inspection law or rules bring on an inspector/mechanic?11 CSR 50-2.130(1), Missouri Code of State Regulations, read 2026-10-15
What does the Highway Patrol charge for an inspector/mechanic permit?11 CSR 50-2.080(4), Missouri Code of State Regulations, read 2026-10-15
What is a permit holder entitled to before the superintendent suspends or revokes an inspection permit?11 CSR 50-2.130(2), Missouri Code of State Regulations, read 2026-10-15
What may a person without an inspector/mechanic permit do during an inspection?11 CSR 50-2.090(3), Missouri Code of State Regulations, read 2026-10-15
What minimum grade passes the written examination for a Missouri inspector/mechanic permit?11 CSR 50-2.080(3), Missouri Code of State Regulations, read 2026-10-15
What must an applicant do in addition to passing the written test?11 CSR 50-2.080(3), Missouri Code of State Regulations, read 2026-10-15
What must the written test show that an inspector/mechanic knows?11 CSR 50-2.080(3), Missouri Code of State Regulations, read 2026-10-15
Who issues an inspector/mechanic permit?11 CSR 50-2.010(1)(F), Missouri Code of State Regulations, read 2026-10-15
Within how many days may a person whose permit is suspended or revoked appeal the action?RSMo 307.360.4(3), Missouri Revisor of Statutes, read 2026-10-15
Station classes, premises and hours 32
A business is open forty-five hours a week. Can it be licensed as a part-time inspection station?11 CSR 50-2.070(3), Missouri Code of State Regulations, read 2026-10-15
A part-time station posts hours of 8 a.m. to noon but is open for other business at 3 p.m. Must it inspect a vehicle presented then?11 CSR 50-2.070(3)(D), Missouri Code of State Regulations, read 2026-10-15
A public inspection station must be readily accessible to motorists. What may they not have to do to reach it?11 CSR 50-2.020(1)(F), Missouri Code of State Regulations, read 2026-10-15
A rejected vehicle comes back inside the reinspection period. How soon must the reinspection begin?11 CSR 50-2.070(2), Missouri Code of State Regulations, read 2026-10-15
A station has only one inspection area. What is not permitted there during normal business hours?11 CSR 50-2.020(1)(E), Missouri Code of State Regulations, read 2026-10-15
A station permit is suspended. What must the station do with its inspection supplies?11 CSR 50-2.050(4), Missouri Code of State Regulations, read 2026-10-15
A vehicle is presented during normal business hours and no other vehicle is being inspected. Within what time must it be inspected?11 CSR 50-2.070(2), Missouri Code of State Regulations, read 2026-10-15
An outside inspection area may be approved in addition to the inside area. What surface must it have?11 CSR 50-2.020(1)(A)2, Missouri Code of State Regulations, read 2026-10-15
Apart from short absences such as illness or vacation, how many inspector/mechanics must a station have?11 CSR 50-2.020(3)(A), Missouri Code of State Regulations, read 2026-10-15
How high must a Class C station's jack or lifting mechanism raise the vehicle?11 CSR 50-2.020(2)(B)3, Missouri Code of State Regulations, read 2026-10-15
How long is an inspection station permit valid?11 CSR 50-2.050(2), Missouri Code of State Regulations, read 2026-10-15
In the rule's definitions, a commercial motor vehicle carries freight and merchandise or more than how many passengers?11 CSR 50-2.010(1)(C), Missouri Code of State Regulations, read 2026-10-15
In the rule's definitions, what is an inspection decal applied to?11 CSR 50-2.010(1)(D), Missouri Code of State Regulations, read 2026-10-15
What are the minimum normal business hours of a full-time public inspection station?11 CSR 50-2.070(1), Missouri Code of State Regulations, read 2026-10-15
What are the minimum normal business hours of a part-time inspection station?11 CSR 50-2.070(3)(C), Missouri Code of State Regulations, read 2026-10-15
What does the poster that every public station must display tell vehicle owners?RSMo 307.365.1, Missouri Revisor of Statutes, read 2026-10-15
What happens to a station permit when the station changes ownership or location?11 CSR 50-2.050(3), Missouri Code of State Regulations, read 2026-10-15
What is a Class C station authorized to inspect?11 CSR 50-2.030(1)(C), Missouri Code of State Regulations, read 2026-10-15
What is a Class D station authorized to inspect?11 CSR 50-2.030(1)(D), Missouri Code of State Regulations, read 2026-10-15
What is the fee for a permit to operate a public or private inspection station?11 CSR 50-2.050(2), Missouri Code of State Regulations, read 2026-10-15
What must a Class B station be able to inspect at a minimum?11 CSR 50-2.030(1)(B), Missouri Code of State Regulations, read 2026-10-15
What must a station's ball joint gauge be adapted to measure?11 CSR 50-2.020(2)(A)3, Missouri Code of State Regulations, read 2026-10-15
What must an inspection station owner maintain at all times to cover possible damage to vehicles during inspection?RSMo 307.365.9, Missouri Revisor of Statutes, read 2026-10-15
Which applicant pays no fee for an inspection station permit?11 CSR 50-2.050(2), Missouri Code of State Regulations, read 2026-10-15
Which class of public inspection station is authorized to inspect all vehicles?11 CSR 50-2.030(1)(A), Missouri Code of State Regulations, read 2026-10-15
Which floor is acceptable for the inside inspection area?11 CSR 50-2.020(1)(D), Missouri Code of State Regulations, read 2026-10-15
Which hours does the Highway Patrol count when working out a part-time station's normal business hours?11 CSR 50-2.070(3)(B), Missouri Code of State Regulations, read 2026-10-15
Which stations must have a tire tread depth gauge graduated in thirty-seconds of an inch?11 CSR 50-2.020(2)(A)7, Missouri Code of State Regulations, read 2026-10-15
Which stations need not display the sign that marks a public inspection station?11 CSR 50-2.060(3), Missouri Code of State Regulations, read 2026-10-15
Which vehicles may a private inspection station inspect?11 CSR 50-2.040(1)(A), Missouri Code of State Regulations, read 2026-10-15
Who is responsible for the station's daily operation and for seeing that complete and proper inspections are performed?11 CSR 50-2.020(3)(B), Missouri Code of State Regulations, read 2026-10-15
Why does the equipment list for stations other than Class C include a scraper?11 CSR 50-2.020(2)(A)5, Missouri Code of State Regulations, read 2026-10-15
Stickers, certificates, fees and records 50
A large commercial vehicle cannot fit the inside inspection area. Under what condition may it be inspected in the approved outside area?11 CSR 50-2.090(2), Missouri Code of State Regulations, read 2026-10-15
A load-carrying ball joint is rejected for too much movement. Besides the measured movement, what is noted on the certificate?11 CSR 50-2.120(3)(B), Missouri Code of State Regulations, read 2026-10-15
A motor vehicle has no windshield. What does the inspector/mechanic issue, and where does it go?11 CSR 50-2.110(2), Missouri Code of State Regulations, read 2026-10-15
A nearby licensed station has run out of stickers. May another station lend it some?11 CSR 50-2.110(6), Missouri Code of State Regulations, read 2026-10-15
A rejected component has a prescribed tolerance or measurement. What must be recorded on the certificate?11 CSR 50-2.120(3)(A), Missouri Code of State Regulations, read 2026-10-15
A station holds several books of stickers. In what order are they used?11 CSR 50-2.110(4), Missouri Code of State Regulations, read 2026-10-15
A vehicle has no identification number. What goes in that field of the certificate?11 CSR 50-2.120(1)(E), Missouri Code of State Regulations, read 2026-10-15
A vehicle is rejected and the owner takes it away unrepaired. What does the inspector/mechanic give the owner?11 CSR 50-2.120(3)(E), Missouri Code of State Regulations, read 2026-10-15
A vehicle is sold for junk, salvage or rebuilding without an inspection. What must the purchaser give the seller?11 CSR 50-2.140(1), Missouri Code of State Regulations, read 2026-10-15
A vehicle owner and an inspector/mechanic disagree about an inspection standard and the dispute is taken up. Whose decision is final?11 CSR 50-2.090(8), Missouri Code of State Regulations, read 2026-10-15
A vehicle passes and still has an old inspection sticker on the windshield. What happens to the old sticker?11 CSR 50-2.110(2), Missouri Code of State Regulations, read 2026-10-15
A vehicle was registered while out of state without an inspection. How soon after it first returns to Missouri must it be inspected?RSMo 307.355.1(1), Missouri Revisor of Statutes, read 2026-10-15
An inspection for registration may be made no more than how many days before the date of application?RSMo 307.350.1, Missouri Revisor of Statutes, read 2026-10-15
An inspector finds a failed brake hose in the first minute of an inspection. What does the rule require next?11 CSR 50-2.090(1), Missouri Code of State Regulations, read 2026-10-15
An owner loses a print approval certificate. Within how many calendar days can the inspecting station replace it at no charge?11 CSR 50-2.120(5), Missouri Code of State Regulations, read 2026-10-15
By what date must unused expired stickers be submitted for exchange?11 CSR 50-2.100(6), Missouri Code of State Regulations, read 2026-10-15
Can a certificate showing approval be issued without a sticker or decal?11 CSR 50-2.120(2)(B), Missouri Code of State Regulations, read 2026-10-15
During a verification the VIN plate appears altered. What does the inspector/mechanic do?11 CSR 50-2.440(6)(B), Missouri Code of State Regulations, read 2026-10-15
Except in extenuating circumstances, how often may a station requisition stickers and decals?11 CSR 50-2.100(3), Missouri Code of State Regulations, read 2026-10-15
How does the statute class a violation of section 307.365, such as giving an approval certificate to someone not entitled to it?RSMo 307.365.8, Missouri Revisor of Statutes, read 2026-10-15
How long must a station keep its print-format safety inspection certificates?11 CSR 50-2.120(4)(A), Missouri Code of State Regulations, read 2026-10-15
In which years must a vehicle of an even-numbered model year be inspected, once it is no longer exempt?RSMo 307.350.1, Missouri Revisor of Statutes, read 2026-10-15
Inspection decals are sold only in complete books of how many?11 CSR 50-2.100(2), Missouri Code of State Regulations, read 2026-10-15
Is road testing a vehicle part of the Missouri inspection procedure?RSMo 307.360.1, Missouri Revisor of Statutes, read 2026-10-15
On a VIN and odometer verification, what is entered in the space for the sticker or decal number?11 CSR 50-2.440(6)(A), Missouri Code of State Regulations, read 2026-10-15
The rule calls a certificate that shows a motor vehicle failed its safety inspection what?11 CSR 50-2.010(1)(K), Missouri Code of State Regulations, read 2026-10-15
Stickers are stolen from a station. When must the Highway Patrol be told?11 CSR 50-2.090(10), Missouri Code of State Regulations, read 2026-10-15
What does a complete book of inspection stickers cost a station?11 CSR 50-2.100(1), Missouri Code of State Regulations, read 2026-10-15
What does a reinspection of a previously rejected vehicle cover?11 CSR 50-2.120(3)(F), Missouri Code of State Regulations, read 2026-10-15
What does a station do with the covers of used sticker and decal books?11 CSR 50-2.110(5), Missouri Code of State Regulations, read 2026-10-15
What does one safety inspection authority, used in place of a sticker with a Gateway Vehicle Inspection Program analyzer, cost?11 CSR 50-2.100(1)(A), Missouri Code of State Regulations, read 2026-10-15
What is done with a voided print-format certificate set?11 CSR 50-2.120(4)(B), Missouri Code of State Regulations, read 2026-10-15
What is the most a station may charge for the official inspection of a motorcycle or trailer?RSMo 307.365.5, Missouri Revisor of Statutes, read 2026-10-15
What is the most a station may charge for the safety inspection of a passenger car, including the certificate and sticker?RSMo 307.365.5, Missouri Revisor of Statutes, read 2026-10-15
What may a station charge for a VIN and odometer verification?11 CSR 50-2.440(4), Missouri Code of State Regulations, read 2026-10-15
What must the owner of a rejected vehicle be told?11 CSR 50-2.120(3)(C), Missouri Code of State Regulations, read 2026-10-15
What must the owner receive before the inspecting station repairs a defect it found?11 CSR 50-2.120(3)(D), Missouri Code of State Regulations, read 2026-10-15
What must the station owner or operator and each inspector/mechanic do with every current manual or bulletin from the superintendent?11 CSR 50-2.090(6), Missouri Code of State Regulations, read 2026-10-15
What words are written across the front of a duplicate made for a lost print certificate?11 CSR 50-2.120(5)(B), Missouri Code of State Regulations, read 2026-10-15
When an inspector/mechanic resigns or is dismissed, when must the station owner or operator report it?11 CSR 50-2.090(7), Missouri Code of State Regulations, read 2026-10-15
When may an inspector/mechanic start filling out a safety inspection certificate?11 CSR 50-2.120(1)(E), Missouri Code of State Regulations, read 2026-10-15
Where is the inspection decal placed on a motorcycle?11 CSR 50-2.110(3)(A), Missouri Code of State Regulations, read 2026-10-15
Where is the inspection decal placed on an autocycle that has a glass windshield?11 CSR 50-2.110(3)(B), Missouri Code of State Regulations, read 2026-10-15
Where on the windshield is the inspection sticker affixed?11 CSR 50-2.110(2), Missouri Code of State Regulations, read 2026-10-15
Which motor vehicles does section 307.350 exempt from the biennial inspection by age and mileage?RSMo 307.350.1(1), Missouri Revisor of Statutes, read 2026-10-15
Which payment is never accepted with a mailed requisition for stickers?11 CSR 50-2.100(4), Missouri Code of State Regulations, read 2026-10-15
Which stations may verify the VIN and odometer reading of any vehicle?11 CSR 50-2.440(3), Missouri Code of State Regulations, read 2026-10-15
Who affixes the sticker or decal to an approved vehicle?11 CSR 50-2.110(1), Missouri Code of State Regulations, read 2026-10-15
Who pays for the inspection a used motor vehicle must have immediately before it is sold?RSMo 307.380.1, Missouri Revisor of Statutes, read 2026-10-15
Within how many consecutive days, not counting Saturdays, Sundays and state holidays, is one reinspection free of a further fee?11 CSR 50-2.120(3)(G), Missouri Code of State Regulations, read 2026-10-15
Brakes 44
A bonded brake lining is rejected when its thinnest point is less than what?11 CSR 50-2.160(2)(A)1.E, Missouri Code of State Regulations, read 2026-10-15
A computerized brake testing machine is used and no wheel is removed. What letters go through the Brake Inspected space on the form?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
A master cylinder is rejected when its fluid level is more than how far below the top of the reservoir?11 CSR 50-2.160(1)(C)1.A, Missouri Code of State Regulations, read 2026-10-15
A riveted lining is rejected when worn to less than 2/32 inch. Measured from where?11 CSR 50-2.160(2)(A)1.G, Missouri Code of State Regulations, read 2026-10-15
A vehicle other than a school bus is rejected when less than what share of the total available pedal travel remains?11 CSR 50-2.160(1)(A)1.B, Missouri Code of State Regulations, read 2026-10-15
After the engine is shut off, a vacuum brake system must still have reserve for how many full applications?11 CSR 50-2.170(1)(A)1.C, Missouri Code of State Regulations, read 2026-10-15
An air brake governor's cut-in pressure is a reject below what figure?11 CSR 50-2.170(2)(B)4, Missouri Code of State Regulations, read 2026-10-15
An air brake governor's cut-out pressure is a reject above what figure?11 CSR 50-2.170(2)(B)3, Missouri Code of State Regulations, read 2026-10-15
An air brake system is rejected when building pressure from 50 to 90 psi takes longer than what?11 CSR 50-2.170(2)(B)1, Missouri Code of State Regulations, read 2026-10-15
An air brake system is rejected when reservoir pressure drops by more than what share of the first reading?11 CSR 50-2.170(2)(B)8, Missouri Code of State Regulations, read 2026-10-15
At what speed are the brakes applied on a brake testing machine?11 CSR 50-2.150(1)(C), Missouri Code of State Regulations, read 2026-10-15
At what speed are the service brakes applied firmly in a drive and stop test?11 CSR 50-2.150(1)(B), Missouri Code of State Regulations, read 2026-10-15
Before the fluid level of a power master-type system is inspected, the pedal is depressed with the ignition off how many times?11 CSR 50-2.160(1)(C), Missouri Code of State Regulations, read 2026-10-15
Besides brakes that fail to function, what rejects a vehicle on the drive and stop test?11 CSR 50-2.150(1)(B)1, Missouri Code of State Regulations, read 2026-10-15
Brake hoses are found chafed and bubbled but not leaking. What is the result?11 CSR 50-2.160(2)(A)1.N, Missouri Code of State Regulations, read 2026-10-15
How many complete brake applications must a hydroboost system have available from its accumulator?11 CSR 50-2.160(1)(B), Missouri Code of State Regulations, read 2026-10-15
How many tests should be made on a brake testing machine before a vehicle is rejected for low braking force?11 CSR 50-2.150(1)(C)1.A, Missouri Code of State Regulations, read 2026-10-15
How much hydraulic fluid must a wheel cylinder or caliper leak to be a reject?11 CSR 50-2.160(2)(A)1.M, Missouri Code of State Regulations, read 2026-10-15
How must the parking brake of a vehicle equipped exclusively with air brakes be capable of being applied?11 CSR 50-2.170(4)(A), Missouri Code of State Regulations, read 2026-10-15
In the pedal reserve check of a hydraulic system, how long is moderate foot force held on the pedal?11 CSR 50-2.160(1)(A), Missouri Code of State Regulations, read 2026-10-15
In the power reserve check, what should the brake pedal do as the engine starts with moderate force held on it?11 CSR 50-2.160(1)(B)1.A, Missouri Code of State Regulations, read 2026-10-15
In what pressure range must the low pressure warning light or buzzer of an air brake system come on?11 CSR 50-2.170(2)(B)2, Missouri Code of State Regulations, read 2026-10-15
The inspector/mechanic cannot tell whether disc pads are riveted or bonded. How are they treated?11 CSR 50-2.160(2)(A)1.L, Missouri Code of State Regulations, read 2026-10-15
No computerized brake testing machine is used. How many wheels come off a passenger car for the brake inspection?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
On a brake testing machine, one wheel's reading is rejected when it is less than what share of the other wheel on the same axle?11 CSR 50-2.150(1)(C)1.C, Missouri Code of State Regulations, read 2026-10-15
On a brake testing machine, the two wheels of one axle together must not produce more than what share of the total braking force?11 CSR 50-2.150(1)(C)1.D, Missouri Code of State Regulations, read 2026-10-15
On a decelerometer test, what deceleration must a passenger vehicle seating ten or fewer develop under Table I?11 CSR 50-2.150, Table I, Missouri Code of State Regulations, read 2026-10-15
On a school bus, the pedal reserve check rejects when less than what share of pedal travel remains?11 CSR 50-2.160(1)(A)1.C, Missouri Code of State Regulations, read 2026-10-15
On a vacuum brake system with a low vacuum indicator, at what vacuum should the flashing or buzzing signal work?11 CSR 50-2.170(1)(A), Missouri Code of State Regulations, read 2026-10-15
On which vehicles are the wheels not required to be removed for the brake inspection?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
Riveted disc brake pads are rejected when worn at any one point to less than what?11 CSR 50-2.160(2)(A)1.L, Missouri Code of State Regulations, read 2026-10-15
To measure push-rod stroke on cam brakes, the air brakes are applied fully at what minimum pressure?11 CSR 50-2.170(3)(A), Missouri Code of State Regulations, read 2026-10-15
Under the brake performance rule, for which vehicles may the inspector/mechanic watch the presenter do the drive and stop test instead of driving?11 CSR 50-2.150(1)(B), Missouri Code of State Regulations, read 2026-10-15
What is checked at the master cylinder push rod with the brake pedal not depressed?11 CSR 50-2.160(1)(C)1.D, Missouri Code of State Regulations, read 2026-10-15
What must a commercial vehicle's parking brake do once applied, if every source of energy is exhausted?11 CSR 50-2.170(4)(A), Missouri Code of State Regulations, read 2026-10-15
What must always be used when a wheel and drum are remounted on a drum brake system?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
When a wheel must be removed, which wheel is chosen?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
Where must the chosen brake performance test be carried out?11 CSR 50-2.150(1), Missouri Code of State Regulations, read 2026-10-15
Which cracks do not count when a brake lining is checked for being broken or cracked?11 CSR 50-2.160(2)(A)1.I, Missouri Code of State Regulations, read 2026-10-15
Which warning light is the inspector/mechanic told not to inspect during the pedal reserve check?11 CSR 50-2.160(1)(A)1.D, Missouri Code of State Regulations, read 2026-10-15
Why are identification marks made on the wheel and lug before a wheel is removed?11 CSR 50-2.160(2), Missouri Code of State Regulations, read 2026-10-15
With the brakes applied, air leakage on a single vehicle is a reject above how many psi per minute?11 CSR 50-2.170(2)(B)5, Missouri Code of State Regulations, read 2026-10-15
With the brakes released, air leakage on a single vehicle is a reject above how many psi per minute?11 CSR 50-2.170(2)(B)6, Missouri Code of State Regulations, read 2026-10-15
With the engine running, at what system air pressure does the air brake inspection begin?11 CSR 50-2.170(2)(A)1, Missouri Code of State Regulations, read 2026-10-15
Lights and signaling devices 16
A stoplight made of forty light emitting diodes has eight that do not light. Does it function properly under the rule?11 CSR 50-2.010(1)(J), Missouri Code of State Regulations, read 2026-10-15
A taillight lens has been repaired with tape. What is the result?11 CSR 50-2.180(6)(G), Missouri Code of State Regulations, read 2026-10-15
A turn signal works but does not cancel itself after a turn. What does the rule say?11 CSR 50-2.190(5)(C), Missouri Code of State Regulations, read 2026-10-15
From which model year must a vehicle other than a motorcycle have two red reflectors?11 CSR 50-2.180(4), Missouri Code of State Regulations, read 2026-10-15
How are headlights mounted under the lighting rule?11 CSR 50-2.180(1)(A)7, Missouri Code of State Regulations, read 2026-10-15
How high above the ground must taillights be mounted on a motor vehicle other than a motorcycle?11 CSR 50-2.180(3), Missouri Code of State Regulations, read 2026-10-15
How high above the surface must the two red rear reflectors be mounted?11 CSR 50-2.180(4), Missouri Code of State Regulations, read 2026-10-15
How many taillights must a motor vehicle other than a motorcycle have?11 CSR 50-2.180(3), Missouri Code of State Regulations, read 2026-10-15
The turn signal rule for vehicles made after January 1, 1954 names a distance from the top of the steering post to the rear limit of the body or load. What is it?11 CSR 50-2.190(3)(B), Missouri Code of State Regulations, read 2026-10-15
What color may the front turn signal lights be?11 CSR 50-2.190(1), Missouri Code of State Regulations, read 2026-10-15
What color must a rear turn signal lens be when it is combined with the taillight?11 CSR 50-2.190(1), Missouri Code of State Regulations, read 2026-10-15
What color of light must headlights show?11 CSR 50-2.180(1), Missouri Code of State Regulations, read 2026-10-15
What must be on while the signaling devices and stoplights are checked?11 CSR 50-2.190(4), Missouri Code of State Regulations, read 2026-10-15
When must the beam indicator be lighted?11 CSR 50-2.180(2), Missouri Code of State Regulations, read 2026-10-15
When must the stoplights operate?11 CSR 50-2.190(2), Missouri Code of State Regulations, read 2026-10-15
Which of these is the inspector/mechanic told not to inspect on a passenger car?11 CSR 50-2.180(5), Missouri Code of State Regulations, read 2026-10-15
Steering, wheel play and ball joints 20
A power steering unit has been disconnected. When does the vehicle still pass?11 CSR 50-2.200(1)(B)1.C, Missouri Code of State Regulations, read 2026-10-15
A vehicle needs a special tool or method to measure ball joint movement. When may it be rejected for the ball joint?11 CSR 50-2.200(4)(B), Missouri Code of State Regulations, read 2026-10-15
An energy absorbing steering column is partially collapsed. What is the result?11 CSR 50-2.200(1)(B)1.D, Missouri Code of State Regulations, read 2026-10-15
Front wheel movement on a 15-inch wheel is a reject above what figure?11 CSR 50-2.200(2)(E)1.C, Missouri Code of State Regulations, read 2026-10-15
Front wheel movement on a 17-inch wheel is a reject above what figure?11 CSR 50-2.200(2)(E)1.C, Missouri Code of State Regulations, read 2026-10-15
Front wheel movement on a 20-inch wheel is a reject above what figure?11 CSR 50-2.200(2)(E)1.C, Missouri Code of State Regulations, read 2026-10-15
How are front and rear wheel bearings checked for looseness?11 CSR 50-2.200(2)(B), Missouri Code of State Regulations, read 2026-10-15
How are springs, torsion bars and shock absorbers examined?11 CSR 50-2.200(3)(A), Missouri Code of State Regulations, read 2026-10-15
How is a ball joint that has a wear indicator inspected?11 CSR 50-2.200(4)(A), Missouri Code of State Regulations, read 2026-10-15
How is wheel bearing movement taken out while the front wheels, king pin and idler arm are checked for play?11 CSR 50-2.200(2)(C), Missouri Code of State Regulations, read 2026-10-15
How much free movement rejects a steering wheel 15 inches in diameter?11 CSR 50-2.200(1)(B)1.B, Missouri Code of State Regulations, read 2026-10-15
How much free movement rejects a steering wheel 20 inches in diameter?11 CSR 50-2.200(1)(B)1.B, Missouri Code of State Regulations, read 2026-10-15
On a vehicle of 10,000 pounds GVWR or less, wheel bearing looseness is a reject when movement at the tire's outer circumference exceeds what?11 CSR 50-2.200(2)(E)1.A, Missouri Code of State Regulations, read 2026-10-15
On a vehicle of more than 10,000 pounds GVWR, wheel bearing looseness is a reject when movement at the tire's outer circumference exceeds what?11 CSR 50-2.200(2)(E)1.A, Missouri Code of State Regulations, read 2026-10-15
On a vehicle with power steering, what is required before steering wheel play is tested?11 CSR 50-2.200(1)(A), Missouri Code of State Regulations, read 2026-10-15
The spring or torsion bar is on the lower control arm. Which ball joint is the load-carrying joint?11 CSR 50-2.200(4)(A)1, Missouri Code of State Regulations, read 2026-10-15
To check wheel play with the ball joints under load, where is the vehicle hoisted when the spring or torsion bar is on the lower control arm?11 CSR 50-2.200(2)(A)1, Missouri Code of State Regulations, read 2026-10-15
What rejects a wear indicator type ball joint?11 CSR 50-2.200(4)(F)1, Missouri Code of State Regulations, read 2026-10-15
When may a vehicle be rejected for movement in a load-carrying ball joint that has no wear indicator?11 CSR 50-2.200(4)(B), Missouri Code of State Regulations, read 2026-10-15
Who determines the acceptable ball joint tolerances?11 CSR 50-2.200(4)(B), Missouri Code of State Regulations, read 2026-10-15
Tires, wheels and glass 19
A tire has a knot, but no cord shows. What is the result?11 CSR 50-2.240(2)(C), Missouri Code of State Regulations, read 2026-10-15
A windshield crack inside the driver's vision area is a reject when it is longer than what?11 CSR 50-2.270(5)(D), Missouri Code of State Regulations, read 2026-10-15
An unrepaired bull's-eye one inch across sits inside the driver's vision area. What is the result?11 CSR 50-2.270(5)(E), Missouri Code of State Regulations, read 2026-10-15
Away from the wear indicator, how worn must a tire be to reject a passenger vehicle?11 CSR 50-2.240(2)(A), Missouri Code of State Regulations, read 2026-10-15
The driver's vision area is the normal wiper sweep above a line measured how far from the bottom of the windshield?11 CSR 50-2.270(4), Missouri Code of State Regulations, read 2026-10-15
Dual tires are a reject when their sizes are mismatched in height by more than what?11 CSR 50-2.240(2)(F), Missouri Code of State Regulations, read 2026-10-15
From which model year must a motor vehicle originally equipped with glass have approved safety glass in all doors, windows and windshields?11 CSR 50-2.270(1), Missouri Code of State Regulations, read 2026-10-15
How much distortion in a windshield is allowed?11 CSR 50-2.270(5)(G), Missouri Code of State Regulations, read 2026-10-15
Must hub caps be removed to inspect wheel bolts, nuts and lugs?11 CSR 50-2.250(1), Missouri Code of State Regulations, read 2026-10-15
On which vehicles are mismatched rims and lock rings named as a reject?11 CSR 50-2.250(2)(B), Missouri Code of State Regulations, read 2026-10-15
Outside the driver's vision area, a star break, bull's-eye or half moon is a reject when it is larger than what diameter?11 CSR 50-2.270(5)(F), Missouri Code of State Regulations, read 2026-10-15
What does the glazing rule call a vented break with cracks radiating from the point of impact?11 CSR 50-2.270(3)(C), Missouri Code of State Regulations, read 2026-10-15
Where may safety glass marked AS2 be used?11 CSR 50-2.270(2), Missouri Code of State Regulations, read 2026-10-15
Which safety glass marking is allowed in a windshield?11 CSR 50-2.270(2), Missouri Code of State Regulations, read 2026-10-15
Which tire combination rejects a vehicle?11 CSR 50-2.240(2)(D), Missouri Code of State Regulations, read 2026-10-15
Which tire is left out of the tire inspection?11 CSR 50-2.240(1), Missouri Code of State Regulations, read 2026-10-15
Which tire marking does not reject a vehicle?11 CSR 50-2.240(2)(E), Missouri Code of State Regulations, read 2026-10-15
Which wheel condition is a reject?11 CSR 50-2.250(2)(D), Missouri Code of State Regulations, read 2026-10-15
The window at the driver's left will not open. When is the vehicle not rejected for it?11 CSR 50-2.270(5)(B), Missouri Code of State Regulations, read 2026-10-15
Horn, mirrors, wipers, belts, flaps and bumpers 26
A horn sounds only when two bare wires are touched together. What is the result?11 CSR 50-2.210(2)(C), Missouri Code of State Regulations, read 2026-10-15
A mirror will not hold the position it is set to. What is the result?11 CSR 50-2.220(3)(D), Missouri Code of State Regulations, read 2026-10-15
A pickup was not equipped by its manufacturer with a rear bumper as standard equipment. Must it have one to pass?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
A truck left the factory with a bumper higher than the table allows. Is it rejected for bumper height?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
A vehicle came from the manufacturer with passive restraints made up of a shoulder belt and no lap belt. What does the rule say?11 CSR 50-2.310(3), Missouri Code of State Regulations, read 2026-10-15
Bumper height is measured from the surface the vehicle stands on to which point?11 CSR 50-2.311(3), Missouri Code of State Regulations, read 2026-10-15
The bumper rule defines a bumper as a device at least how tall?11 CSR 50-2.311(1)(A), Missouri Code of State Regulations, read 2026-10-15
For a commercial motor vehicle of 4,500 pounds GVWR or under, what are the maximum bumper heights?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
For a commercial motor vehicle of 9,001 to 11,500 pounds GVWR, what are the maximum bumper heights?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
For bumper height, how is a pickup or a mini-van classified?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
From what manufacture date must pickup trucks have two sets of seat belts in the forward-most seating area?11 CSR 50-2.310(1), Missouri Code of State Regulations, read 2026-10-15
From where must the horn button or switch be readily accessible?11 CSR 50-2.210(2)(D), Missouri Code of State Regulations, read 2026-10-15
From which model year must a vehicle built with both an inside mirror and a driver's side outside mirror still have both?11 CSR 50-2.220(2), Missouri Code of State Regulations, read 2026-10-15
How does the inspector/mechanic check that the wiper blades contact the windshield firmly?11 CSR 50-2.230(2), Missouri Code of State Regulations, read 2026-10-15
How far below the original manufacturer's mounting may a drop bumper be mounted?11 CSR 50-2.311(1)(B), Missouri Code of State Regulations, read 2026-10-15
How wide must a required mud flap be?11 CSR 50-2.300(1), Missouri Code of State Regulations, read 2026-10-15
On a dump truck, a required mud flap must reach to within how far of the ground?11 CSR 50-2.300(1), Missouri Code of State Regulations, read 2026-10-15
On a truck other than a dump truck, a required mud flap must reach to within how far of the ground?11 CSR 50-2.300(1), Missouri Code of State Regulations, read 2026-10-15
Under the seat belt rule, which seat is checked for secure attachment and a stable position?11 CSR 50-2.310(4)(D), Missouri Code of State Regulations, read 2026-10-15
What is a Type 1 seat belt assembly?11 CSR 50-2.310(2)(A), Missouri Code of State Regulations, read 2026-10-15
What is the maximum bumper height, front and rear, for a passenger car?11 CSR 50-2.311(4), Missouri Code of State Regulations, read 2026-10-15
What must the inspector/mechanic do with the two required sets of front seat belts?11 CSR 50-2.310(1), Missouri Code of State Regulations, read 2026-10-15
Which four-wheel passenger cars must have at least two sets of seat belts for the front seat?11 CSR 50-2.310(1), Missouri Code of State Regulations, read 2026-10-15
Which mirror is the inspector/mechanic told not to inspect?11 CSR 50-2.220(2), Missouri Code of State Regulations, read 2026-10-15
Which trucks must have mud flaps for the rear wheels?11 CSR 50-2.300(1), Missouri Code of State Regulations, read 2026-10-15
Which windshield wipers must be in operating condition?11 CSR 50-2.230(1), Missouri Code of State Regulations, read 2026-10-15
Exhaust, emission devices and fuel 18
A light-duty vehicle receives a replacement engine. Which certified configuration must its emission parts comply with?11 CSR 50-2.280(1)(A), Missouri Code of State Regulations, read 2026-10-15
A muffler has small holes the manufacturer made for drainage. What is the result?11 CSR 50-2.260(2), Missouri Code of State Regulations, read 2026-10-15
A tailpipe is held up with wire. What is the result?11 CSR 50-2.260(3)(D), Missouri Code of State Regulations, read 2026-10-15
A vehicle that was originally equipped with a filler tube cap arrives without one. What is the result?11 CSR 50-2.290(2)(C), Missouri Code of State Regulations, read 2026-10-15
For the replacement engine rules, a light-duty passenger vehicle has a GVWR below what figure?11 CSR 50-2.280(1)(A), Missouri Code of State Regulations, read 2026-10-15
From which model year must a vehicle the manufacturer equipped with a catalytic converter still have an original or EPA-approved replacement converter?11 CSR 50-2.280(10)(A), Missouri Code of State Regulations, read 2026-10-15
How is a PCV valve checked once it is disconnected from the engine?11 CSR 50-2.280(2)(B), Missouri Code of State Regulations, read 2026-10-15
How is an engine modification type control system most easily identified?11 CSR 50-2.280(4)(A), Missouri Code of State Regulations, read 2026-10-15
How much fuel leakage rejects a vehicle?11 CSR 50-2.290(2)(A), Missouri Code of State Regulations, read 2026-10-15
In what state is the engine while the exhaust system is inspected?11 CSR 50-2.260(2), Missouri Code of State Regulations, read 2026-10-15
The inspection of air pollution control devices installed by the manufacturer applies from which model year?11 CSR 50-2.280(1), Missouri Code of State Regulations, read 2026-10-15
May a heavy-duty engine be installed in a light-duty vehicle?11 CSR 50-2.280(1)(C), Missouri Code of State Regulations, read 2026-10-15
May the inspector/mechanic block the end of the tailpipe to check the exhaust for leaks?11 CSR 50-2.260(2), Missouri Code of State Regulations, read 2026-10-15
What does the exhaust gas recirculation system do?11 CSR 50-2.280(7)(A), Missouri Code of State Regulations, read 2026-10-15
Where may no part of the exhaust system pass?11 CSR 50-2.260(3)(F), Missouri Code of State Regulations, read 2026-10-15
Which exhaust patch is permitted?11 CSR 50-2.260(3)(B), Missouri Code of State Regulations, read 2026-10-15
Which system's inspection covers the charcoal canister and purge line?11 CSR 50-2.280(9)(B), Missouri Code of State Regulations, read 2026-10-15
Which vehicles are outside the air pollution control device inspection?11 CSR 50-2.280(1), Missouri Code of State Regulations, read 2026-10-15
Motorcycles and autocycles 22
A motorcycle has a dual exhaust system. How much of it is examined?11 CSR 50-2.330(1)(F)2, Missouri Code of State Regulations, read 2026-10-15
A motorcycle is rejected when less than what share of its brake pedal reserve remains?11 CSR 50-2.330(1)(A)3.D, Missouri Code of State Regulations, read 2026-10-15
A motorcycle wheel is a reject when it wobbles more than what?11 CSR 50-2.330(1)(D)2.F, Missouri Code of State Regulations, read 2026-10-15
A motorcycle's windshield is so scarred that it does not give clear vision. What is the result?11 CSR 50-2.330(1)(G), Missouri Code of State Regulations, read 2026-10-15
From which model year are motorcycles inspected for the air pollution devices the manufacturer installed?11 CSR 50-2.330(1)(I)1, Missouri Code of State Regulations, read 2026-10-15
How are a motorcycle's wheel bearings checked?11 CSR 50-2.330(1)(C)1, Missouri Code of State Regulations, read 2026-10-15
How many headlights may a motorcycle or motor tricycle have?11 CSR 50-2.330(1)(B)1, Missouri Code of State Regulations, read 2026-10-15
How many red taillights must a motor tricycle with two rear wheels have?11 CSR 50-2.330(1)(B)2, Missouri Code of State Regulations, read 2026-10-15
How many red taillights must an autocycle with one rear wheel have?11 CSR 50-2.335(3)(B)3.A, Missouri Code of State Regulations, read 2026-10-15
In the rule's definitions, what is a motor tricycle?11 CSR 50-2.010(1)(H), Missouri Code of State Regulations, read 2026-10-15
On an autocycle's drive and stop test, what rejects it besides a brake that shows no braking action?11 CSR 50-2.335(3)(A)2, Missouri Code of State Regulations, read 2026-10-15
On which wheels must an autocycle have brakes installed and working?11 CSR 50-2.335(3)(A), Missouri Code of State Regulations, read 2026-10-15
Unless the manufacturer equipped them so, motorcycle handlebars are a reject when any part rises more than how far above the normal riding position?11 CSR 50-2.330(1)(C)2.D, Missouri Code of State Regulations, read 2026-10-15
What color must an autocycle's stoplights be?11 CSR 50-2.335(3)(F)2, Missouri Code of State Regulations, read 2026-10-15
What extra light does a motorcycle with a sidecar need?11 CSR 50-2.330(1)(B)1, Missouri Code of State Regulations, read 2026-10-15
When is a motorcycle tire rejected for tread wear?11 CSR 50-2.330(1)(D)2.A, Missouri Code of State Regulations, read 2026-10-15
When is a roll bar inspected on an autocycle?11 CSR 50-2.335(3)(D)1, Missouri Code of State Regulations, read 2026-10-15
Where must an autocycle have seat belts?11 CSR 50-2.335(3)(E)1, Missouri Code of State Regulations, read 2026-10-15
Which controls mark a three-wheeled vehicle as an autocycle in the rule's definitions?11 CSR 50-2.010(1)(B), Missouri Code of State Regulations, read 2026-10-15
Which mirror must every autocycle have?11 CSR 50-2.335(3)(C)1, Missouri Code of State Regulations, read 2026-10-15
Which rules are followed for an autocycle's glazing and air pollution control devices?11 CSR 50-2.335(2), Missouri Code of State Regulations, read 2026-10-15
Who may ride a motorcycle on the station premises for its brake test?11 CSR 50-2.330(1)(A)1, Missouri Code of State Regulations, read 2026-10-15
How this list was compiled: Every question rests on one section named in its own source line: Missouri Code of State Regulations, Title 11, Division 50, Chapter 2, Motor Vehicle Inspection (the Secretary of State's current copy, code update of December 31, 2024, with the amendments effective January 30, 2025: https://www.sos.mo.gov/cmsimages/adrules/csr/current/11csr/11c50-2.pdf ), or the inspection statutes, RSMo 307.350 to 307.390 ( https://revisor.mo.gov/main/OneChapter.aspx?chapter=307 ). Both were read on 2026-10-15, and the regulation was compared with the Missouri State Highway Patrol's own printing of it, the Motor Vehicle Safety Inspection Regulations Manual, form SHP-478, printing of July 2026. Licence: Own work. Every question, every wrong choice and every explanation was written for this site from the text of the section it cites. The regulation and the statutes are public law of the State of Missouri. Nothing is taken from the Highway Patrol's written or practical examination, a training handout or another practice test.
How it works
Missouri motor vehicle inspection practice test for mechanics going for the inspector/mechanic permit: our own questions on the Missouri State Highway Patrol's inspection regulations, 11 CSR 50-2. It is unofficial, and no question comes from the Patrol's examination.
Read the full guide
A written test and a practical test
Rule 11 CSR 50-2.080 sets a written test on the inspection manual and a practical test on a vehicle. The rule prints no question count or time limit, so the 25 questions of the scored test here are this site's choice.
A study guide in the manual's order
Used as a Missouri state safety inspection study guide, the ten topics follow the manual: permits, stations, stickers and certificates, then brakes, lights, steering, tires and glass, body, exhaust, and motorcycles with autocycles.
Where each answer comes from
Every explanation names its section of the regulation or of RSMo 307.350 to 307.390, read on October 15, 2026 and compared with the Patrol's own printing. Two points where the two copies differ are not asked.
Figures decide many answers: 2/32 inch of bonded lining, 6/32 on riveted pads, a three-inch crack in the driver's vision area.
A reinspection covers only what failed, and one is free within twenty days, not counting Saturdays, Sundays and state holidays.
The permit costs nothing, lasts three years and renews up to sixty days late without a new test.
Questions and answers
Is this Missouri vehicle inspection practice test the real exam?
No. It is unofficial practice written from the published regulation, not from the examination. The Missouri State Highway Patrol did not write or review it.
Is there an official Missouri state inspection study guide?
The study text is the Patrol's Motor Vehicle Safety Inspection Regulations Manual, form SHP-478, free on its Motor Vehicle Inspection forms page. It carries 11 CSR 50-2, the regulation most questions here cite; twelve cite the inspection statutes instead.
What score passes the Missouri inspector/mechanic test?
A grade of 80 on the written test and 80 on the practical one, under 11 CSR 50-2.080(3). The Patrol publishes a monthly testing schedule by troop, and some sessions need pre-registration.
Who can become a vehicle inspector in Missouri?
Under 11 CSR 50-2.080, someone at least seventeen who can read the written instructions and has a year of practical experience as an automotive mechanic, a vocational course in automotive mechanics, or the Patrol's Motor Vehicle Inspection Field Training Program.
Does the Missouri motor vehicles inspection study guide cover school buses?
Not the main manual. School bus inspection has its own book, the School Bus Inspection Regulations Manual, form SHP-479, under rule 11 CSR 50-2.320. This bank leaves school buses out.