Fdny A35 Exam Questions and Answers 100%
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Air compressors power... - -(1) industrial equipment and (2) construction tools
Examples of equipment powered by air compressor - -pneumatic wrenches, lifts in auto service
stations, paint spray booths
Air compressors enable... - -(1) efficient repair of all types of vehicles; and (2) facilitate their safe
operation on public thoroughfares
Permit is required for air compressor - -that compresses air above 100 PSI
Types of air compressors - -(1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
How do air compressors work - -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 - -Reciprocating
Air compressors are sometimes called - -air pumps
, Air compressors can be powered by: - -(1) electric motors;
(2) internal combustion engines; or
(3) steam turbines
Explosions & air compressors - -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.
To avoid explosions w/ air compressors - -Raise air compressor at LEAST 5 feet above ground level
so that no flammable gases are drawn into the compressor. To meet the height requirement you can
place compressor on a shelf or bench OR the air receiver tank may be turned and stood on end w/ the
air compressor bolted to the top of the tank.
Power to air compressor - -entire unit is driven by an electric motor. Motor activates a series of
drive belts. Belts power the moving parts of the unit--like w/ power steering and alternator in
automobile
Compression Chamber operation - -Air is compressed in compression chamber which consists of a
PISTON inside a CYLINDER. Piston moves up and down.
When piston moves down -->draws air into cylinder, through INTAKE VALVE (valve automatically opens
when piston moves down).
Guaranteed Pass
Air compressors power... - -(1) industrial equipment and (2) construction tools
Examples of equipment powered by air compressor - -pneumatic wrenches, lifts in auto service
stations, paint spray booths
Air compressors enable... - -(1) efficient repair of all types of vehicles; and (2) facilitate their safe
operation on public thoroughfares
Permit is required for air compressor - -that compresses air above 100 PSI
Types of air compressors - -(1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
How do air compressors work - -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 - -Reciprocating
Air compressors are sometimes called - -air pumps
, Air compressors can be powered by: - -(1) electric motors;
(2) internal combustion engines; or
(3) steam turbines
Explosions & air compressors - -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.
To avoid explosions w/ air compressors - -Raise air compressor at LEAST 5 feet above ground level
so that no flammable gases are drawn into the compressor. To meet the height requirement you can
place compressor on a shelf or bench OR the air receiver tank may be turned and stood on end w/ the
air compressor bolted to the top of the tank.
Power to air compressor - -entire unit is driven by an electric motor. Motor activates a series of
drive belts. Belts power the moving parts of the unit--like w/ power steering and alternator in
automobile
Compression Chamber operation - -Air is compressed in compression chamber which consists of a
PISTON inside a CYLINDER. Piston moves up and down.
When piston moves down -->draws air into cylinder, through INTAKE VALVE (valve automatically opens
when piston moves down).
