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FDNY G 98 PRACTICE EXAM 200 COMPREHENSIVE QUESTIONS & RATIONALES (NEW 2024 FIRE CODE), Exams of Safety and Fire Engineering

United States University (USU)Safety and Fire Engineering

Master the FDNY G-98 Certificate of Fitness exam with this definitive study resource featuring 200 practice questions. Each question includes a bolded correct answer and an italicized rationale to ensure you understand the underlying NYC Fire Code regulations. This guide covers critical topics including NFPA 704 markings, gas cabinet requirements, SCF calculations, and emergency protocols for flammable compressed gases. Perfect for professionals seeking citywide certification, this document mirrors the structure and difficulty of the actual touch-screen exam at MetroTech. Download this comprehensive prep tool to build confidence and guarantee a passing score on your first attempt.

Typology: Exams

2025/2026

Available from 03/18/2026

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FDNY G 98 PRACTICE EXAM 200

COMPREHENSIVE QUESTIONS &

RATIONALES (NEW 2024 FIRE CODE)

1. Which certificate of fitness is required for the general

supervision of the storage of flammable compressed

gases?

A) G-60

B) G-98

C) S-95

D) F-01

Rationale: The G-98 Certificate of Fitness specifically covers the

handling, use, and storage of flammable compressed gases

citywide.

2. At what quantity of flammable compressed gas (SCF) is a

Fire Department permit required?

A) 100 SCF

B) 250 SCF

C) 400 SCF

D) 1,000 SCF

Rationale: A permit is mandatory for the storage, handling, or

use of flammable compressed gases in amounts exceeding 400

standard cubic feet (SCF).

3. What is the maximum amount of flammable gas allowed

to be stored in any building or structure (excluding

construction sites)?

A) 3,500 SCF

B) 6,500 SCF

C) 10,000 SCF

D) 15,000 SCF

Rationale: The NYC Fire Code restricts indoor storage of

flammable gas to a maximum of 15,000 SCF per building.

4. How often must permanent permits for flammable gas be

renewed?

A) Every 6 months

Discover Exams of Safety and Fire Engineering United States University (USU)

Partial preview of the text

Download FDNY G 98 PRACTICE EXAM 200 COMPREHENSIVE QUESTIONS & RATIONALES (NEW 2024 FIRE CODE) and more Exams Safety and Fire Engineering in PDF only on Docsity!

FDNY G 98 PRACTICE EXAM 200

COMPREHENSIVE QUESTIONS &

RATIONALES (NEW 2024 FIRE CODE)

Which certificate of fitness is required for the general supervision of the storage of flammable compressed gases? A) G- 60 B) G- 98 C) S- 95 D) F- 01 Rationale: The G-98 Certificate of Fitness specifically covers the handling, use, and storage of flammable compressed gases citywide.
At what quantity of flammable compressed gas (SCF) is a Fire Department permit required? A) 100 SCF B) 250 SCF C) 400 SCF D) 1,000 SCF Rationale: A permit is mandatory for the storage, handling, or use of flammable compressed gases in amounts exceeding 400 standard cubic feet (SCF).
What is the maximum amount of flammable gas allowed to be stored in any building or structure (excluding construction sites)? A) 3,500 SCF B) 6,500 SCF C) 10,000 SCF D) 15,000 SCF Rationale: The NYC Fire Code restricts indoor storage of flammable gas to a maximum of 15,000 SCF per building.
How often must permanent permits for flammable gas be renewed? A) Every 6 months

B) Every 12 months C) Every 2 years D) Every 3 years Rationale: Permanent premises-related permits are valid for 12 months and require an annual inspection for renewal.

A "Citywide" permit allows activity at a single location for a maximum of how many days? A) 15 days B) 30 days C) 60 days D) 90 days Rationale: Citywide permits are valid for operations at multiple locations, provided the duration at any single site does not exceed 30 days.
Which of the following is STRICTLY prohibited in New York City regarding flammable gas containers? A) Storage in a gas cabinet B) Refilling containers C) Using a pressure regulator D) Outdoor storage under 3,500 SCF Rationale: The FDNY study material explicitly states that refilling compressed flammable gas containers is strictly prohibited in NYC.
What is the minimum distance required between flammable gas storage and air-conditioning equipment or ventilation intakes? A) 10 feet B) 25 feet C) 50 feet D) 75 feet Rationale: To prevent gas from entering building systems during a leak, storage must be at least 50 feet away from air intakes.
Leaks that occur where the valve screws into the container are known as: A) Stem leakers B) Neck leakers C) Outlet leakers D) Thread failures

B) 125°F

C) 150°F

D) 212°F

Rationale: Cylinders must be kept away from excessive heat to prevent pressure build-up; 125°F is the standard limit for storage.

Incompatible materials must be separated by a noncombustible partition extending how far above the stored material? A) 6 inches B) 12 inches C) 18 inches D) 24 inches Rationale: Partitions used for separation must extend at least 18 inches above and to the sides of the containers.
A Class B fire extinguisher is best used for which type of fire? A) Paper and wood B) Flammable liquids or gases C) Electrical equipment D) Combustible metals Rationale: Class B extinguishers are designed for fires involving flammable liquids, oils, and gases.
How far must flammable gas storage be from open flames or other ignition sources? A) 10 feet B) 15 feet C) 20 feet D) 25 feet Rationale: A minimum clearance of 25 feet is required from all ignition sources like open flames or electrical equipment.
What does "SCF" stand for in gas measurement? A) Simple Cubic Feet B) Standard Cubic Feet C) Static Compressed Flow D) Super Charged Fuel Rationale: SCF is the standard unit of measurement for gas volume at a specific temperature and pressure.

G-98 holders are responsible for notifying the FDNY in the event of: A) Any minor equipment repair B) Any fire C) Every cylinder exchange D) Only if a person is injured Rationale: The Fire Code requires that the FDNY be notified immediately of any fire, regardless of its size or if it was extinguished.
What is the first step when a leak is detected in a piped gas system? A) Call the manufacturer B) Shut off the gas supply C) Open all windows D) Light a match to find the leak Rationale: Safety protocols dictate that the supply must be isolated immediately to prevent further gas accumulation.
Which form of ID is NOT acceptable for taking the G- 98 exam? A) Passport B) Driver's License C) Employer-issued ID card (without photo/govt backing) D) NY State ID Rationale: Candidates must provide government-issued photo identification to enter the testing center.
When transporting compressed gas cylinders within a building, you must use: A) A standard flatbed dolly B) A specifically designed hand truck or cart C) A motorized forklift only D) Manual lifting by two people Rationale: Cylinders must be moved using carts designed for that purpose, equipped with chains or straps to prevent tipping.
What must be done with the protective valve cap when a cylinder is NOT in use? A) It should be stored in a tool box B) It should be left off for ventilation C) It must be securely hand-tightened over the valve

B) One for the entire building C) At least one for personal supervision of the operation D) None, if the permit is displayed Rationale: Personal supervision means the G-98 holder must be present while the gas is being used or handled.

In an NFPA 704 diamond, what does a "4" in the red quadrant indicate? A) Non-flammable B) High flash point C) Extremely flammable (Flash point below 73°F) D) Moderately flammable Rationale: The scale runs 0-4; 4 represents the highest level of hazard (most flammable).
Which of the following is an example of an "Ignition Source"? A) A wooden pallet B) A static spark from a wool sweater C) A closed window D) A pressurized water pipe Rationale: Static electricity, open flames, and unshielded electrical switches are all potential ignition sources for flammable gas.
Compressed gas cylinders must be stored in which position? A) Horizontal B) Upright (Vertical) C) Upside down D) Tilted at a 45-degree angle Rationale: Storing cylinders upright prevents liquid from reaching the valve and ensures stability when secured.
What tool should be used to tighten a regulator onto a cylinder valve? A) Pliers B) Pipe wrench C) Fixed or adjustable wrench (Crescent wrench) D) Hammer and chisel Rationale: Proper wrenches prevent damage to the brass fittings on valves and regulators.

When opening a cylinder valve, you should stand: A) Directly in front of the regulator B) To the side, away from the regulator face C) Above the cylinder D) As close as possible to hear for leaks Rationale: Standing to the side protects the operator in case the regulator face "blows out" due to high pressure.
A "Standard Cubic Foot" (SCF) is measured at what temperature? A) 32°F B) 60°F C) 70°F D) 100°F Rationale: NYC Fire Code defines SCF at 70°F and 14.7 psia (atmospheric pressure).
Empty cylinders should be: A) Thrown in the regular trash B) Stored separately from full cylinders and marked "Empty" C) Refilled by the G-98 holder D) Left with the valves wide open Rationale: Separating full and empty tanks prevents confusion and ensures proper inventory management.
The hose connecting the regulator to the equipment must be: A) Made of copper tubing only B) Rated for the specific gas and pressure used C) At least 50 feet long D) Duct taped at the joints Rationale: Hoses must be compatible with the chemical properties of the gas and the working pressure of the system.
What should be used to check for leaks at a connection? A) A cigarette lighter B) A specialized leak detection solution or soapy water C) Listening for a whistling sound only D) Feeling for air movement with a wet finger Rationale: Soap solution bubbles clearly indicate even small leaks without introducing an ignition source.

A "Warning" label on a cylinder indicates: A) No hazard B) Severe hazard C) Intermediate hazard D) Only for use by professionals Rationale: Under GHS/OSHA standards, "Danger" is for more severe hazards, while "Warning" is for less severe ones.
Static electricity is most dangerous when: A) The humidity is high B) The humidity is low (dry air) C) The room is ventilated D) The tanks are grounded Rationale: Dry air allows static charges to build up more easily, increasing the risk of a spark.
What must be provided for workers handling compressed gases? A) Personal Protective Equipment (PPE) B) A company car C) A personal fire extinguisher for each worker D) Free lunch Rationale: Employers must provide appropriate PPE, such as gloves or eye protection, based on the Safety Data Sheet (SDS).
What is the flash point of a flammable gas? A) 100°F B) 200°F C) Below 100°F (usually below room temperature) D) Flash point does not apply to gases Rationale: Flammable gases are considered "flammable" because they can ignite at normal temperatures and pressures.
"Oxygen" and "Flammable Gas" cylinders must be separated by 20 feet or: A) A wooden fence B) A 5-foot high, 1/2 hour fire-rated wall C) A plastic curtain D) A line of yellow tape Rationale: To prevent an oxidizer from accelerating a flammable gas fire, a physical fire-rated barrier is required if the 20-foot distance isn't possible.

Pressure Relief Devices (PRDs) are designed to: A) Increase the pressure in the tank B) Vent gas safely if the pressure gets too high due to heat C) Prevent the gas from being used too quickly D) Keep the valve from leaking Rationale: PRDs prevent the cylinder from rupturing (exploding) if exposed to fire or extreme heat.
When a job is finished for the day, the G-98 holder should: A) Leave the gas running for the next shift B) Close the cylinder valve and bleed the lines C) Disconnect the regulator and leave it on the floor D) Turn off the lights and leave Rationale: Closing the valve and depressurizing the hoses prevents leaks while the equipment is unattended.
Safety Data Sheets (SDS) must be: A) Kept in a locked safe B) Readily accessible to all employees C) Thrown away after the first reading D) Only kept by the Fire Department Rationale: OSHA and FDNY require SDS to be available so workers know the hazards and emergency procedures for the gases they use.
The Certificate of Fitness holder must be able to: A) Recite the entire Fire Code B) Explain the hazards of the gases they are supervising C) Fix a broken regulator D) Drive a delivery truck Rationale: A core responsibility of the G-98 holder is understanding the risks and safety protocols of the specific materials on-site.
What is the definition of a "Compressed Flammable Gas"? A) Any gas that smells like rotten eggs B) A gas ignitable in a mixture of 13% or less by volume with air C) Any gas stored at a pressure above 2,000 psi D) Only gases that are heavier than air Rationale: The Fire Code defines flammable gas by its ignitability at 13% or less concentration in air or having a flammable range of at least 12%.

Rationale: Blue represents the Health hazard, Red is Flammability, Yellow is Instability, and White is for Special Hazards.

How many SCF of flammable gas can be stored outdoors without a permit? A) 0 SCF B) 100 SCF C) Under 400 SCF D) 3,500 SCF Rationale: A permit is required once the quantity reaches 400 SCF; below that, storage does not require a formal FDNY permit.
In a gas cabinet, the ventilation system must be: A) Recirculated into the room B) Exhausted directly to the outdoors C) Turned off when the cabinet is closed D) Connected to the building's AC system Rationale: To prevent gas buildup, cabinets must be vented directly outside to a safe location.
What should you do if a cylinder valve is "frozen" or stuck? A) Use a hammer to tap it loose B) Stop and notify the supplier (do not use force) C) Use a torch to heat the valve D) Use a pipe wrench for extra leverage Rationale: Using force or heat on a stuck valve can lead to a catastrophic release of high-pressure gas.
Signs reading "FLAMMABLE GAS - NO SMOKING" must be posted: A) Only on the cylinders B) At the entrance to the storage area C) In the manager's office D) On the building's front door Rationale: Signs must be visible at the point of storage to warn anyone entering the immediate area.
Which gas is an example of an "Oxidizing Gas" (not flammable)? A) Acetylene B) Hydrogen C) Oxygen

D) Methane Rationale: Oxygen is an oxidizer; while it doesn't burn itself, it makes flammable materials burn much more intensely.

Gas containers must be protected from: A) Fluorescent lights B) Physical damage and tampering C) All types of sound D) Room temperature Rationale: Physical impacts (like from a forklift) or unauthorized tampering are leading causes of cylinder failure.
What is the standard color for an Acetylene cylinder? A) No universal standard (always read the label) B) Always Red C) Always Black D) Always Yellow Rationale: While some industries use color codes, the Fire Code mandates identifying gases by their labels, not cylinder color.
When bleeding a line, you should: A) Blow the gas toward your face to smell it B) Ensure there are no ignition sources nearby C) Do it as quickly as possible D) Collect the gas in a plastic bag Rationale: Bleeding lines releases flammable gas into the air, creating a temporary fire hazard if a spark is present.
A Class C fire extinguisher is used for: A) Wood and paper B) Flammable liquids C) Electrical equipment D) Kitchen grease Rationale: Class C indicates the extinguishing agent is non-conductive, making it safe for electrical fires.
What must be done before moving a cylinder? A) Open the valve slightly B) Ensure the protective cap is in place C) Remove all labels D) Shake it to check the level Rationale: The cap protects the valve from impact during transport.

Rationale: A leak at the stem means gas is escaping near the point of operation, which can easily find an ignition source.

Cylinders must not be stored in: A) Gas cabinets B) Exit hallways or stairways C) Outdoor cages D) Dedicated storage rooms Rationale: Storage in means of egress is prohibited as it could block an exit or explode during an evacuation.
When a permit is revoked, the CoF holder must: A) Continue working until the appeal B) Surrender the certificate to the FDNY C) Pay a fine and keep the card D) Give the card to their boss Rationale: A revoked certificate is no longer valid, and the physical card must be returned to the Department.
The "Lower Flammable Limit" (LFL) is: A) The maximum amount of gas that can burn B) The minimum concentration of gas in air that will burn C) The pressure at which a tank explodes D) The weight of the gas Rationale: Below the LFL, the mixture is "too lean" to burn.
What is the maximum allowed pressure for Acetylene gas in a pipe? A) 5 psi B) 15 psi C) 100 psi D) 500 psi Rationale: Acetylene becomes unstable and can explode spontaneously if pressurized above 15 psi in its gaseous state.
How should you store "Full" and "Empty" cylinders? A) Mixed together to save space B) In separate, clearly marked areas C) Full cylinders on top of empty ones D) Only empty cylinders need to be secured Rationale: Separation prevents the accidental use of an empty tank or the storage of a full tank in an "empty" area.

If you find an unlabeled cylinder, you should: A) Smell it to identify the gas B) Mark it as "Unknown" and contact the supplier C) Guess based on the tank color D) Use it for a non-critical task Rationale: Never use a cylinder if you are not 100% certain of its contents.
What does the "S" stand for in the PASS method of using an extinguisher? A) Step back B) Squeeze and Sweep C) Shout for help D) Stay low Rationale: PASS = Pull, Aim, Squeeze, Sweep.
How far must a G-98 holder be from the operation they are supervising? A) In the same city B) In sight of the operation (personal supervision) C) In the same building D) Within a 10-minute walk Rationale: Personal supervision requires being present and having a direct line of sight to the work.
Compressed gas containers must be moved using: A) A crane and sling B) A hand truck with a securing chain C) Rolling them on their bottom edge D) Dragging them by the valve Rationale: Hand trucks with chains are the only approved manual way to move cylinders safely.
When a fire involves a flammable gas cylinder, your first priority is: A) To save the equipment B) Life safety and notifying the FDNY C) To put out the fire with a garden hose |D) To move the burning cylinder outside Rationale: Never risk your life for property; evacuation and professional fire response come first.

The "Upper Flammable Limit" (UFL) is: A) The maximum pressure of a tank B) The maximum concentration of gas in air that will burn C) The highest temperature a tank can reach D) The weight of a full cylinder Rationale: Above the UFL, the mixture is "too rich" (not enough oxygen) to burn.
What should be used to protect a cylinder valve from impact? A) A plastic bag B) A screw-on metal cap C) Bubble wrap D) A piece of wood Rationale: A metal cap is required to provide structural protection to the valve.
If you see someone smoking near a gas storage area, you should: A) Ignore them B) Tell them to stop and point out the "No Smoking" sign C) Take a picture of them D) Call your lawyer Rationale: The G-98 holder is responsible for enforcing safety rules in the storage area.
A manifold "flashback arrestor" is used to: A) Save gas B) Prevent a flame from traveling back into the cylinders C) Increase the pressure D) Change the color of the flame Rationale: Flashback arrestors are critical safety devices that stop fire from entering the supply tanks.
"General Supervision" of storage means the CoF holder must: A) Watch the tanks 24/ B) Be available to the site but not necessarily in the storage room C) Only visit once a year D) Be the owner of the company Rationale: General supervision is less strict than personal supervision;

the holder must ensure rules are followed but doesn't have to be physically present at all times.

Which of the following is a symptom of a gas leak in a small room? A) The room gets brighter B) Dizziness or a distinct odor (if the gas is odorized) C) The floor gets slippery D) The lights flicker Rationale: Many gases are asphyxiants or have added odors to warn of their presence.
When a cylinder is empty, the valve should be: A) Left wide open B) Closed to prevent moisture from entering C) Removed entirely D) Painted green Rationale: Closing the valve on an empty tank prevents internal corrosion caused by air and moisture.
A permit is required for "Handling" if the quantity is: A) 1 SCF B) 10 SCF C) Exceeding 400 SCF D) Only if the gas is Acetylene Rationale: The 400 SCF threshold applies to storage, use, and handling.
What is the first thing you check on a fire extinguisher's tag? A) The price B) The last inspection date C) The name of the manufacturer D) The weight Rationale: Extinguishers must be inspected monthly by the owner and annually by a licensed professional.
In an emergency, who has the final authority at the scene? A) The building owner B) The G-98 holder C) The FDNY Incident Commander D) The police

FDNY G 98 PRACTICE EXAM 200 COMPREHENSIVE QUESTIONS & RATIONALES (NEW 2024 FIRE CODE), Exams of Safety and Fire Engineering

Related documents

Partial preview of the text

Download FDNY G 98 PRACTICE EXAM 200 COMPREHENSIVE QUESTIONS & RATIONALES (NEW 2024 FIRE CODE) and more Exams Safety and Fire Engineering in PDF only on Docsity!

FDNY G 98 PRACTICE EXAM 200

COMPREHENSIVE QUESTIONS &

RATIONALES (NEW 2024 FIRE CODE)

B) 125°F

C) 150°F

D) 212°F