• 116 questions

S92 Practice Test

Each answer shows the rule and the section of the S-92 space heater booklet behind it.

What score does the notice set as the lowest pass for the S-92?

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

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Exam mode: 25 questions, 38 minutes, 18 right to pass (70%).

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Unofficial practice questions, not affiliated with the New York City Fire Department. Bank checked October 11, 2026.

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All 116 questions

The exam and what the S-92 covers 11

  • A portable oil-fueled heater is wanted for curing in July. What does the booklet say? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction, indirect-fired heaters
  • After how long does an S-92 certificate come up for renewal? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), notice of examination, renewal requirements
  • An S-92 holder connects an LPG cylinder to a space heater under that holder's supervision. Is a separate gas certificate needed for that? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • By the booklet's chart, which heater fuels may an S-92 holder supervise? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • How much time does the notice give to finish the S-92 test? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), notice of examination, exam information
  • May an S-92 holder do cutting or welding with a flammable gas torch? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
Show all 116 questions (110 more)

The exam and what the S-92 covers, continued

  • The S-92 computer test is made up of how many questions? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), notice of examination, exam information
  • What is the heating season for portable fueled space heaters? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • What score does the notice set as the lowest pass for the S-92? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), notice of examination, exam information
  • Which special requirement does the notice list for S-92 applicants? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), notice of examination, requirements for written exam
  • Which use of temporary fueled heating equipment does the booklet prohibit outright? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction

Heater types and carbon monoxide 17

  • At the least, how often is carbon monoxide read where solid fuel salamanders burn? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • By the booklet's definition, what is the longest period a permit may run? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions, permit issuance
  • Heat carried upward by the natural rise of air is which form of heat transfer? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • In an indirect-fired heater, what keeps combustion products out of the heated air? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction, indirect-fired heaters
  • The ownership of a site changes. What happens to its FDNY permit? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions, permit issuance
  • What 8-hour exposure limit for carbon monoxide does the booklet quote from NIOSH? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • What ceiling limit for carbon monoxide does the booklet give? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • What does personal supervision require of the certificate holder? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions, personal supervision
  • What is the lower flammable limit? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions
  • Where does a direct-fired heater release its heat and its emissions? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction, direct-fired heaters
  • Where does the booklet rank temporary heating among causes of fires in buildings under construction? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • Where is an indirect-fired heater commonly set up? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction, indirect-fired heaters
  • Which early symptoms of carbon monoxide exposure does the booklet list? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • Which hazard of misused space heaters does the booklet call the most dangerous? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • Which kind of supervision covers the storage of the heaters and their fuel? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions, supervision
  • Which kind of supervision is required when portable fueled space heaters are handled and used? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section II, Definitions, supervision
  • Why does a direct-fired heater need open windows or doors nearby? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction, direct-fired heaters

Coke salamanders 13

  • Coke salamanders are burning on two floors. May one certificate holder supervise both? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • For what work only are solid fueled salamanders permitted? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • How far must solid fueled heaters be kept from combustible tarpaulins or enclosures? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • How long before a scheduled concrete pour are the solid fueled pots usually lit? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • Is an FDNY permit needed to store empty salamanders that are not in use? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander, storage, handling and use
  • On what must solid fueled heaters stand? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • What does the booklet say solid fueled salamanders are also called? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • What does the department require before solid fuel (coke) heaters are used? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section I, Introduction
  • What is kept to show the department that coke salamanders were supervised? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • What is required on the floor above the one where coke salamanders are heating? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • What is the most coke-fueled salamanders one certificate holder may supervise? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • Who lights the solid fueled salamanders? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander
  • With what is a solid fuel coke salamander ignited? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, solid fueled salamander

Kerosene and liquid fuel 15

  • A metal fuel container is filled at a motor fuel dispensing facility. What is the largest it may be? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • Above what quantity does storing a combustible liquid such as kerosene need an FDNY permit? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, permit
  • Above what quantity of gasoline on site is a Fire Department permit required? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, permit
  • Before a kerosene heater is refueled it must be: FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, refueling
  • How must kerosene be stored on the site? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander
  • Kerosene brought to the floor is transferred to approved safety cans of what maximum size? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • May a portable fuel container be filled while it sits in the bed of a truck? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • Turpentine has a flash point of 95°F. In the booklet's example, above what liquid temperature may it not be dispensed by gravity? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • What does the booklet tell the certificate holder to put on a fuel spill? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • What is the largest individual container in which flammable and combustible liquids may be stored? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • What sign must a storage area for combustible liquids such as kerosene carry? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, storage signs
  • Where is smoking prohibited on a construction site enclosed by a fence? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • Which is an accepted way to interconnect the fill stem and a container electrically? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • Which of these may be used to push liquid fuel out of a container during transfer? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use
  • Whose listing mark must a kerosene heater carry? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, kerosene fueled salamander, handling and use

LPG heaters and cylinders 30

  • A cylinder falls and its regulator is damaged. What does the excess flow check valve do? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, excess flow check valve
  • A cylinder has no internal excess flow check valve. Who must install one? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, excess flow check valve
  • A cylinder sits in the hot air that a heating appliance blows out. What must be used? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • A leak is found and the control valve is closed. What happens to the cylinder next? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • Above what quantity does storing, handling or using LPG require a permit? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, Safe LPG Cylinder Storage, permit
  • By the booklet, how many times its liquid volume does LP-gas take up as a vapor? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander
  • For what working pressure must the hose from regulator to appliance be designed? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • How do LP-gases behave compared with air? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander
  • How far apart must two LP-gas storage enclosures on a site be? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • How far must combustible materials be kept from an LP-gas appliance or cylinder? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • How is a portable cylinder moved? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • How is the cylinder control valve opened? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • How often does the certificate holder inspect the area where LPG containers and heaters are located? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander
  • How often must LPG cylinders be re-tested, by the booklet? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • May the discharge rate of a regulator be adjusted on the site? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • To what weight may a standard portable LP-gas cylinder be charged? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • Unless FDNY approves otherwise, how far from the building under construction is the outdoor cylinder storage enclosure? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • What does the booklet warn about the odor added to propane? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, propane gas
  • What happens when a standard-type cylinder is not upright? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • What is the most LP-gas allowed in a single storage enclosure on a construction site? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • What is the most LP-gas allowed on one construction site in total? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • What kind of threads join the regulator and the control valve? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • What protects a cylinder's control valve from physical damage? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, protective cap or collar
  • What smell does the additive give LP-gases? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander
  • Where are LPG salamanders prohibited? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander
  • Where do the LP-gas cylinders go at the end of each work day? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, Safe LPG Cylinder Storage
  • Where may an LP-gas cylinder never be placed? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section IV, Using LP-Gases
  • Which agency must approve the cylinders that hold LPG? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use
  • Which cylinders are permitted inside a building under construction while work is in progress? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, Safe LPG Cylinder Storage
  • Why is a vapor space left in an LP-gas cylinder? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section III, LPG fueled salamander, storage, handling and use

Natural gas heaters 12

  • A required gas valve sits more than 7 feet above the floor. What must be provided? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • For which heaters does the booklet's checklist ask that a portable combustible gas leak detector be kept on the premises? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), the Quick Checklist after section VII
  • How close to any surface of a temporary enclosure may a natural gas fired heater be placed? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • How does natural gas behave compared with air? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • How long may the flexible hose to a piped natural gas heater be? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • How many natural gas fired heaters may be connected to one shut-off valve? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • How often must temporary natural gas piping be marked "Natural Gas"? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • What explosive limits in air does the booklet give for methane? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • What is done with gas piping, tubing or fittings that are defective? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • What may a temporary enclosure for curing or drying be made of? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • What type must the required shut-off valves be? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander
  • Who connects and disconnects compressed natural gas containers? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section V, natural gas fueled salamander, storage, handling and use

Emergencies, extinguishers and site rules 18

  • A minor gas leak has not ignited. What does the booklet say can be done? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VI, General Safety Regulations, handling gas emergencies
  • After a fire or explosion, within what time is the detailed report to the Bureau of Fire Prevention generally filed? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, after the tag pictures
  • At what building height is an exterior hoist for personnel and material required? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, hoist in readiness
  • Charging more than how many personal mobility devices at once must be done in a room set aside for it? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VIII, Lithium-Ion Battery Safety
  • During heating operations, what must the hoist in readiness have? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, hoist in readiness
  • How does the Fire Code classify buildings under construction for extinguisher purposes? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers
  • How far at most may that extinguisher be from the furthest coke salamander on the floor? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers
  • Leaking gas is burning and 911 has been called. What does the booklet say about the flame? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VI, General Safety Regulations, handling gas emergencies
  • The standpipe system is not operational. What does that mean for heating operations? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, standpipe
  • What does "travel distance" mean? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers
  • What extinguisher must be within 30 feet of a heater that is in use or connected for use? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers
  • When construction passes what height are standpipe risers required? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, standpipe
  • Where does the fire safety manager record inspections of the construction site? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VI, General Safety Regulations
  • Which hazard class and extinguisher rating does the booklet give for solid fuel (coke) salamanders? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers
  • While waiting for a burning gas supply to be shut off, what is done with nearby combustible material? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VI, General Safety Regulations, handling gas emergencies
  • Who checks every portable fire extinguisher at least once a year and replaces its tag? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers, portable fire extinguisher inspections
  • Who is told the outcome of the certificate holder's daily inspections? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VI, General Safety Regulations
  • With a 40-B:C extinguisher, how far from the heater may it be? FDNY study material for the S-92 Certificate of Fitness (revised March 2024), section VII, Fire Extinguishers

How this list was compiled: Written from the study material the New York City Fire Department publishes for the S-92 Certificate of Fitness, Supervision of Portable Fueled Space Heaters at Construction Sites, revised March 2024 and read 2026-10-11 (https://www.nyc.gov/assets/fdny/downloads/pdf/business/cof-s92-noe-study-materials.pdf): the notice of examination and sections I to VIII, on heater types, coke, kerosene, liquefied petroleum gas and natural gas salamanders, cylinder storage, gas emergencies, fire extinguishers and site rules. Each question names the section it rests on. Licence: Own work. Questions, answer choices and explanations were written for this site from the facts in the booklet and restate them in new words; no sample question, checklist or passage is copied. The booklet itself is copyright the City of New York.

How it works

This unofficial S-92 FDNY practice test holds 116 questions on supervising portable fueled space heaters at construction sites. Its source is the New York City Fire Department's study material, revised March 2024 and still posted on October 11, 2026.

Read the full guide

Seven topics, fuel by fuel

The questions follow the booklet: the exam and what the S-92 covers, heater types and carbon monoxide, coke salamanders, kerosene, LPG heaters and cylinders, natural gas heaters, then emergencies, extinguishers and site rules. LPG, the fuel with the most pages, has the most questions.

Exam mode follows the notice

Exam mode takes its length, clock and pass mark from the booklet's exam information.

  • The heating season runs October 15 through May 30, and the heaters are never for human comfort (section I).
  • LP-gas limits: 2,500 pounds in one storage enclosure, 5,000 on the site, enclosures 50 feet apart and 25 feet from the building (section IV).
  • One holder supervises at most 50 coke salamanders, all on one floor, with carbon monoxide read every 60 minutes (sections I and III).

Questions and answers

How many questions are on the S-92 exam?

The booklet revised March 2024 gives 25 multiple-choice questions on a touch screen computer, 38 minutes and a passing score of at least 70 percent. Check the department's current booklet before the exam, since these numbers can change.

Are these the real S-92 exam questions?

No. This site has never seen the department's exam and is not affiliated with the New York City Fire Department. Every question is new writing based on the S-92 booklet, and its sample questions are not used. No certificate holder has reviewed them yet.

Who needs an S-92 certificate of fitness?

The person who supervises portable fueled space heaters at a construction site. The booklet asks for a certificate holder's personal supervision while heaters are handled and used, and general supervision of stored heaters and fuel.

Does the S-92 cover torch work?

No. The booklet says S-92 holders are not authorized for hot work with flammable gas. A gas torch is allowed only to light coke salamanders, and the holder lights them personally.

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