• 50 questions

NOCTI Mechatronics Practice Test

Unofficial practice for NOCTI Mechatronics-Level 1: safety, meters and sensors, circuits, drives and bearings, fluid power, PLCs and networks.

Two shafts must stay in step with each other. Which belt has teeth that run on matching toothed pulleys?

Pick an answer, then press Check answer. Then you see Correct or Not quite, with the reason. Keys: A to D pick, Enter checks.

Print covers the next 50 questions. Share this set copies a link to the same questions in the same order.

Exam mode: 50 questions, 43 minutes.

More options

Unofficial practice questions, not affiliated with NOCTI. Bank checked October 16, 2026.

Next step More drives: NOCTI Industrial MaintenanceAnother NOCTI test: Pre-Engineering

All 50 questions

Introduction to Mechatronics: Safety 7

  • A pneumatic press is locked out, but air is still trapped in its cylinder. What must be done about that stored energy before work starts? OSHA, 29 CFR 1910.147, paragraph (d)(5)(i). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • A technician works near exposed energized circuit parts with hand tools that might touch them. What kind of tools must be used? OSHA, 29 CFR 1910.335, paragraph (a)(2)(i). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • From the far end of a production floor, the way to the nearest exit is not immediately apparent. What does the exit route rule require along the way? OSHA, 29 CFR 1910.37, paragraph (b)(4). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • In the machine guarding rule, what is the point of operation of a machine? OSHA, 29 CFR 1910.212, paragraph (a)(3)(i). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • The pulleys of a belt drive must be guarded when any part of them is within what distance of the floor or working platform? OSHA, 29 CFR 1910.219, paragraph (d)(1). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • Which is one of the three parts of OSHA's definition of a confined space? OSHA, 29 CFR 1910.146, paragraph (b). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
  • Which section of a safety data sheet gives the signal word, the hazard statements and the pictograms? OSHA Brief, Hazard Communication Standard: Safety Data Sheets (OSHA 3514). Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Safety
Show all 50 questions (43 more)

Introduction to Mechatronics: Communication 3

  • An operator calls out an instruction, and the technician repeats it back so the operator can confirm it. What is this technique called? Wikipedia, Closed-loop communication. Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Communication
  • Each shift, a technician records every fault, the time and the state of the machine. What is this record called? Wikipedia, Logbook. Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Communication
  • Which operating document sets out, step by step, the standardized way to carry out a routine task? Wikipedia, Standard operating procedure. Written to NOCTI Mechatronics-Level 1 (2040), Introduction to Mechatronics: Communication

Instrumentation and Measurement 11

  • A line carries plastic bottles and steel cans. Which kind of proximity sensor always requires a metal target? Wikipedia, Proximity sensor. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • A photoelectric sensor detects whether a part is present. What does it use to do so? Wikipedia, Photoelectric sensor. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • How is an ammeter connected to measure the current in a circuit? Wikipedia, Ammeter. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • Most pressure gauges read gauge pressure. What do they take as their zero point? Wikipedia, Pressure measurement. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • On a click-type torque wrench, what does the click tell the user? Wikipedia, Torque wrench. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • On an inch ruler marked in sixteenths, which mark is halfway between 3/8 and 1/2? Written to the NOCTI Job Ready Credential Blueprint for Mechatronics-Level 1 (2040), Instrumentation and Measurement; the answer is arithmetic on the numbers in the question, worked twice
  • What does a thermocouple produce at the junction of its two dissimilar conductors? Wikipedia, Thermocouple. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • What is calibration of a measuring instrument? Wikipedia, Calibration. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • What operates a reed switch? Wikipedia, Reed switch. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • Which instrument measures the thickness of a part, the diameter of a hole and the depth of a hole? Wikipedia, Calipers. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement
  • Why does a voltmeter usually have a high resistance? Wikipedia, Voltmeter. Written to NOCTI Mechatronics-Level 1 (2040), Instrumentation and Measurement

Electrical 9

  • A 12-volt sensor loop draws 0.02 ampere. What is the resistance of the loop? Wikipedia, Ohm's law. Written to NOCTI Mechatronics-Level 1 (2040), Electrical; the arithmetic was worked twice
  • A 24-volt DC supply must run a small AC load. Which device changes direct current to alternating current? Wikipedia, Power inverter. Written to NOCTI Mechatronics-Level 1 (2040), Electrical
  • A 24-volt supply feeds three loads in series. Two of them drop 9 volts and 5 volts. What does the third drop? Wikipedia, Kirchhoff's circuit laws, Kirchhoff's voltage law. Written to NOCTI Mechatronics-Level 1 (2040), Electrical; the arithmetic was worked twice
  • A four-band resistor reads yellow, violet, brown, gold. What is its value? Wikipedia, Electronic color code, Decoding the value. Written to NOCTI Mechatronics-Level 1 (2040), Electrical; the arithmetic was worked twice
  • A switch on a gate is tripped when the moving gate reaches the end of its travel. Which type of switch is this? Wikipedia, Limit switch. Written to NOCTI Mechatronics-Level 1 (2040), Electrical
  • The current through the winding of a solenoid coil is raised. What happens to the strength of its magnetic field? Wikipedia, Electromagnet. Written to NOCTI Mechatronics-Level 1 (2040), Electrical
  • How many terminals does a potentiometer have, and what does its sliding contact form? Wikipedia, Potentiometer. Written to NOCTI Mechatronics-Level 1 (2040), Electrical
  • In American wire gauge, what happens to the diameter of a wire as the gauge number goes up? Wikipedia, American wire gauge, Specifications. Written to NOCTI Mechatronics-Level 1 (2040), Electrical
  • On a ladder diagram, a small coil current opens and closes a set of contacts. Which device is an electrically operated switch? Wikipedia, Relay. Written to NOCTI Mechatronics-Level 1 (2040), Electrical

Mechanical 8

  • A 4-inch pulley on a motor turns at 1,750 rpm and drives a 10-inch pulley by belt. Ignoring slip, how fast does the 10-inch pulley turn? Wikipedia, Belt (mechanical), Standards for use. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical; the arithmetic was worked twice
  • A vertical shaft presses down along its own axis. Which bearing is designed to support a mainly axial load? Wikipedia, Thrust bearing. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • An idler gear is added between a drive gear and a driven gear. What does it change? Wikipedia, Gear train, Idler gears. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • How far is the handle of a ball valve turned to take it from fully open to shut? Wikipedia, Ball valve. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • Two shafts must stay in step with each other. Which belt has teeth that run on matching toothed pulleys? Wikipedia, Toothed belt. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • What is a flat washer normally used for under a nut or a bolt head? Wikipedia, Washer (hardware). Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • What is grease, as a lubricant, made of? Wikipedia, Grease (lubricant). Written to NOCTI Mechatronics-Level 1 (2040), Mechanical
  • Which element gives stainless steel its resistance to corrosion? Wikipedia, Stainless steel. Written to NOCTI Mechatronics-Level 1 (2040), Mechanical

Hydraulic and Pneumatic Systems 6

  • A hydraulic cylinder must push with 2,000 pounds, and its piston has an area of 4 square inches. What pressure is needed? Wikipedia, Hydraulic machinery. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems; the arithmetic was worked twice
  • How does a double-acting pneumatic cylinder differ from a single-acting one? Wikipedia, Pneumatic cylinder, Double-acting cylinders. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems
  • Through which three kinds of conductor is hydraulic fluid distributed around a machine? Wikipedia, Hydraulic machinery. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems
  • What does a pneumatic filter do in a compressed air line? Wikipedia, Pneumatic filter. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems
  • What is the primary function of a hydraulic fluid? Wikipedia, Hydraulic fluid. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems
  • Which hydraulic valve routes the fluid to the desired actuator, usually with a spool that slides inside a housing? Wikipedia, Hydraulic machinery, Control valves. Written to NOCTI Mechatronics-Level 1 (2040), Hydraulic and Pneumatic Systems

Computer and Control Systems 6

  • A data cable must run beside large motors and drives. Which medium is immune to electromagnetic interference? Wikipedia, Optical fiber. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems
  • A technician changes a bracket drawing on a workstation and checks the new shape before it is made. Which term names this use of computers? Wikipedia, Computer-aided design. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems
  • An operator starts a line and watches its status on a touch panel. What is the layer through which a person works a machine called? Wikipedia, User interface. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems
  • How many rows does a truth table need to list every combination of 3 inputs? Wikipedia, Truth table, Truth tables in digital logic. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems; the arithmetic was worked twice
  • The PLCs, drives and panels of one work cell plug into a single box that passes data on to the device it is addressed to. What is that box? Wikipedia, Network switch. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems
  • What are the three steps of the simplest PLC scan cycle, in order? Wikipedia, Programmable logic controller, Process of a scan cycle. Written to NOCTI Mechatronics-Level 1 (2040), Computer and Control Systems

How this list was compiled: Our own questions, written to the competency list of the Job Ready Credential Blueprint for Mechatronics-Level 1 (code 2040, version 01, copyright 2012) that NOCTI publishes at https://www.nocti.org/wp-content/uploads/2020/10/JRMechatronics2040.pdf , read 2026-10-16: a written assessment of 209 questions in 3 hours over seven areas (Introduction to Mechatronics: Safety 15%; Introduction to Mechatronics: Communication 5%; Instrumentation and Measurement 21%; Electrical 18%; Mechanical 16%; Hydraulic and Pneumatic Systems 12%; Computer and Control Systems 13%). The blueprint lists no performance assessment. This bank holds 50 in those proportions. Every rule and definition was read on 2026-10-16 on the public page named under its question: OSHA general industry standards in 29 CFR 1910 on osha.gov, the OSHA brief on safety data sheets, and Wikipedia. Every voltage, speed and size in a sum is made up for the drill, and each computed answer is arithmetic that was worked twice. Licence: Questions, choices and explanations are original work of this site.

How it works

Fifty questions of our own for the NOCTI Mechatronics test, sorted by the seven areas of the Job Ready blueprint for Mechatronics-Level 1, code 2040. This free practice test is unofficial and not affiliated with, endorsed by or sponsored by NOCTI.

Read the full guide

Seven areas, measurement first

Instrumentation and Measurement is 21% of the written assessment, Electrical 18% and Mechanical 16%. Safety is 15%, Computer and Control Systems 13%, Hydraulic and Pneumatic Systems 12% and Communication 5%.

43 minutes for 50

That is the pace of the real written assessment. A timed round ends in a score and no verdict.

A written test only

Blueprint 2040 lists a written assessment and no performance jobs. Its electrical safety items name the National Electrical Code and NFPA 70E, which are privately published, so the safety questions here come from the public OSHA standards.

  • An ammeter goes in series with the load. A voltmeter goes in parallel, across it.
  • Belt and gear speeds: driver speed times driver size, divided by driven size. The larger wheel turns slower.
  • Pressure is force divided by area: pounds over square inches gives psi.

Questions and answers

How many questions are on the NOCTI Mechatronics test?

The Job Ready blueprint for Mechatronics-Level 1, code 2040, lists 209 written questions in 3 hours, given in one, two or three sessions.

What is on the NOCTI Mechatronics test?

Lockout, guarding, confined spaces and safety data sheets; work instructions and logs; meters, torque wrenches, gauges, sensors and transducers; circuits, switches, resistor bands and power supplies; materials, bearings, gears, belts and lubrication; valves, cylinders and Pascal's law; and networks, PLCs, truth tables and CAD.

What score passes the NOCTI Mechatronics test?

No passing score is printed in the Mechatronics-Level 1 blueprint, only the question count, the time and each area's share. Your school or program decides how the result is used.

Where is the NOCTI Mechatronics blueprint?

NOCTI posts it free at nocti.org/credentials/blueprints under Mechatronics-Level 1: a PDF with the competencies, the weight of each area and ten sample questions. None of those samples is used or reworded here.

More tests

Show 8 more

Browse Safety and Trades