A 49 FDNY COMPREHENSIVE EXAM
QUESTIONS AND SOLUTIONS STUDY GUIDE
●● Examples of equipment powered by air compressor
Answer: pneumatic wrenches, lifts in auto service stations, paint spray
booths
●● Air compressors enable...
Answer: (1) efficient repair of all types of vehicles; and (2) facilitate
their safe operation on public thoroughfares
●● Permit is required for air compressor
Answer: that compresses air above 100 PSI
●● Types of air compressors
Answer: (1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
, ●● How do air compressors work
Answer: take the air in a room and force it into a container UNDER
PRESSURE. The more air forced into the container, the greater the
pressure. Compressed air can be discharged from the container at a
controlled rate.
●● Most common air compressor
Answer: Reciprocating
●● Air compressors are sometimes called
Answer: air pumps
●● Air compressors can be powered by:
Answer: (1) electric motors;
(2) internal combustion engines; or
(3) steam turbines
●● Explosions & air compressors
Answer: If there is a build up of flammable gases (ex: in service stations
and workshops), those gases are heavier than air and fall to the floor
before spreading outward. These gases are easily ignited by sparks and
high temperatures--which INCLUDES the heat generated by an air
compressor.
QUESTIONS AND SOLUTIONS STUDY GUIDE
●● Examples of equipment powered by air compressor
Answer: pneumatic wrenches, lifts in auto service stations, paint spray
booths
●● Air compressors enable...
Answer: (1) efficient repair of all types of vehicles; and (2) facilitate
their safe operation on public thoroughfares
●● Permit is required for air compressor
Answer: that compresses air above 100 PSI
●● Types of air compressors
Answer: (1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
, ●● How do air compressors work
Answer: take the air in a room and force it into a container UNDER
PRESSURE. The more air forced into the container, the greater the
pressure. Compressed air can be discharged from the container at a
controlled rate.
●● Most common air compressor
Answer: Reciprocating
●● Air compressors are sometimes called
Answer: air pumps
●● Air compressors can be powered by:
Answer: (1) electric motors;
(2) internal combustion engines; or
(3) steam turbines
●● Explosions & air compressors
Answer: If there is a build up of flammable gases (ex: in service stations
and workshops), those gases are heavier than air and fall to the floor
before spreading outward. These gases are easily ignited by sparks and
high temperatures--which INCLUDES the heat generated by an air
compressor.
