FDNY A35 Exam Questions and Answers
(2026) | Comprehensive Review with
Detailed Rationales | A+ Verified
• Air compressors are used to? CORRECT ANSWER: Power industrial equipment
and construction tools.
• Air Compressors enable? CORRECT ANSWER: The efficient repair of all types
of vehicles and facilitate their safe operation.
• Air compressors are important in? CORRECT ANSWER: Manufacturing and are
central to product development and creation.
• A FDNY permit is required if a compressor is? CORRECT ANSWER: Used to
compress any nonflammable, corrosive or oxidizing gas, including air to a pressure
exceeding 100 psi. (Outdoor air compressing does not require a permit unless it is a
fair or festival)
• What does an air compressor do? CORRECT ANSWER: It takes the air in a
room and forces it into a container under pressure.
• Compressed air is used to power? CORRECT ANSWER: Pneumatic wrenches
and lifts in automobile service stations. Heavy machinery and paint spray booths in
industrial plants.
• What are the different types of air compressors? CORRECT ANSWER:
Reciprocating, centrifugal, rotary and scroll compressors.
, • What is the difference between air compressor types? CORRECT ANSWER:
How they compress air.
• What is the most used air compressor? CORRECT ANSWER: Reciprocating.
• What are air compressors sometimes called? CORRECT ANSWER: Air pumps.
• How can air compressors be powered? CORRECT ANSWER: Electric motors,
internal combustion engines, and steam turbines.
• What is the most common power source for an air compressor? CORRECT
ANSWER: An Electric motor.
• Flammable gases and air compressors. CORRECT ANSWER: In places like
service stations or workshops there may be a build up of flammable gases, which
are heavier than air and fall to the floor before spreading outward. These gases are
easily ignited by sparks and high temperatures including the heat generated by an
air compressor.
• How high must an air compressor be and why? CORRECT ANSWER: - Must be
at least 5 feet above the ground.
- A raised air compressor is less likely to ignite flammable gases.
• How do air compressors work? CORRECT ANSWER: They take the air from a
room where it is compressed in the compression chamber, when the air reaches a
certain pressure it is moved to the air receiver (air tank). The more air forced into
the container, the greater the pressure. Compressed air can be discharged from the
container at a controlled rate.
(2026) | Comprehensive Review with
Detailed Rationales | A+ Verified
• Air compressors are used to? CORRECT ANSWER: Power industrial equipment
and construction tools.
• Air Compressors enable? CORRECT ANSWER: The efficient repair of all types
of vehicles and facilitate their safe operation.
• Air compressors are important in? CORRECT ANSWER: Manufacturing and are
central to product development and creation.
• A FDNY permit is required if a compressor is? CORRECT ANSWER: Used to
compress any nonflammable, corrosive or oxidizing gas, including air to a pressure
exceeding 100 psi. (Outdoor air compressing does not require a permit unless it is a
fair or festival)
• What does an air compressor do? CORRECT ANSWER: It takes the air in a
room and forces it into a container under pressure.
• Compressed air is used to power? CORRECT ANSWER: Pneumatic wrenches
and lifts in automobile service stations. Heavy machinery and paint spray booths in
industrial plants.
• What are the different types of air compressors? CORRECT ANSWER:
Reciprocating, centrifugal, rotary and scroll compressors.
, • What is the difference between air compressor types? CORRECT ANSWER:
How they compress air.
• What is the most used air compressor? CORRECT ANSWER: Reciprocating.
• What are air compressors sometimes called? CORRECT ANSWER: Air pumps.
• How can air compressors be powered? CORRECT ANSWER: Electric motors,
internal combustion engines, and steam turbines.
• What is the most common power source for an air compressor? CORRECT
ANSWER: An Electric motor.
• Flammable gases and air compressors. CORRECT ANSWER: In places like
service stations or workshops there may be a build up of flammable gases, which
are heavier than air and fall to the floor before spreading outward. These gases are
easily ignited by sparks and high temperatures including the heat generated by an
air compressor.
• How high must an air compressor be and why? CORRECT ANSWER: - Must be
at least 5 feet above the ground.
- A raised air compressor is less likely to ignite flammable gases.
• How do air compressors work? CORRECT ANSWER: They take the air from a
room where it is compressed in the compression chamber, when the air reaches a
certain pressure it is moved to the air receiver (air tank). The more air forced into
the container, the greater the pressure. Compressed air can be discharged from the
container at a controlled rate.
