FDNY A-35 questions and answers
100% guaranteed success.
Air compressors power... - CORRECT ANSWER. (1) industrial
equipment and (2) construction tools
Examples of equipment powered by air compressor - CORRECT ANSWER.
pneumatic wrenches, lifts in auto service stations, paint spray booths
Air compressors enable... - CORRECT ANSWER. (1) efficient repair of all types
of vehicles; and (2) facilitate their safe operation on public thoroughfares
Permit is required for air compressor - CORRECT ANSWER. that compresses air
above 100 PSI
Types of air compressors - CORRECT ANSWER. (1) reciprocating;
(2)centrifugal;
(3)solar; and
(4)rotary
*Difference is the way in which they compress air
, How 3do 3air 3compressors 3work 3- 3 CORRECT 3ANSWER. take 3the 3air 3in 3a 3room
3and 3force 3it 3into 3a 3container 3UNDER 3PRESSURE. 3The 3more 3air 3forced 3into
3the 3container, 3the 3greater 3the 3pressure. 3Compressed 3air 3can 3be 3discharged
3from 3the 3container 3at 3a 3controlled 3rate.
Most 3common 3air 3compressor 3- 3 CORRECT 3ANSWER. Reciprocating
Air 3compressors 3are 3sometimes 3called 3- 3 CORRECT 3ANSWER. air 3pumps
Air 3compressors 3can 3be 3powered 3by: 3- 3 CORRECT 3ANSWER. (1) 3electric
3motors;
(2)internal 3combustion 3engines; 3or
(3)steam 3turbines
Explosions 3& 3air 3compressors 3- 3 CORRECT 3ANSWER. If 3there 3is 3a 3build 3up 3of
3flammable 3gases 3(ex: 3in 3service 3stations 3and 3workshops), 3those 3gases 3are
3heavier 3than 3air 3and 3fall 3to 3the 3floor 3before 3spreading 3outward. 3These
3gases 3are 3easily 3ignited 3by 3sparks 3and 3high 3temperatures--which
3INCLUDES 3the 3heat 3generated 3by 3an 3air 3compressor.
To 3avoid 3explosions 3w/ 3air 3compressors 3- 3 CORRECT 3ANSWER. Raise 3air
3compressor 3at 3LEAST 35 3feet 3above 3ground 3level 3so 3that 3no 3flammable
3gases 3are 3drawn 3into 3the 3compressor. 3To 3meet 3the 3height 3requirement
3you 3can 3place 3compressor 3on 3a 3shelf 3or 3bench 3OR 3the 3air 3receiver 3tank
3may 3be 3turned 3and 3stood 3on 3end 3w/ 3the 3air 3compressor 3bolted 3to 3the 3top
3of 3the 3tank.
Power 3to 3air 3compressor 3- 3 CORRECT 3ANSWER. entire 3unit 3is 3driven 3by 3an
3electric 3motor. 3Motor 3activates 3a 3series 3of 3drive 3belts. 3Belts 3power 3the
3moving 3parts 3of 3the 3unit--like 3w/ 3power 3steering 3and 3alternator 3in
3automobile
Compression 3Chamber 3operation 3- 3 CORRECT 3ANSWER. Air 3is 3compressed
3in 3compression 3chamber 3which 3consists 3of 3a 3PISTON 3inside 3a 3CYLINDER.
3Piston 3moves 3up 3and 3down.
When 3piston 3moves 3down 3-->draws 3air 3into 3cylinder, 3through 3INTAKE
3VALVE 3(valve 3automatically 3opens 3when 3piston 3moves 3down).
When 3piston 3moves 3up-->air 3is 3compressed 3(intake 3vale 3automatically
3closes 3to 3avoid 3air 3escaping 3from 3cylinder).
Air 3Reciever 3Operation 3- 3 CORRECT 3ANSWER. 3 When 3air 3pressure 3reaches 3a
3certain 3level, 3it 3forces 3open 3a 3DISCHARGE 3VALVE 3(which 3is 3spring 3loaded).
3This 3releases 3compressed 3air 3into 3air 3reciever 3(aka 3air 3tank), 3which 3is 3what
3supplies 3compressed 3air 3when 3needed.
Single 3Stage 3Air 3Compressor 3- 3 CORRECT 3ANSWER. with 3one 3cylinder 3and 3one
3piston
100% guaranteed success.
Air compressors power... - CORRECT ANSWER. (1) industrial
equipment and (2) construction tools
Examples of equipment powered by air compressor - CORRECT ANSWER.
pneumatic wrenches, lifts in auto service stations, paint spray booths
Air compressors enable... - CORRECT ANSWER. (1) efficient repair of all types
of vehicles; and (2) facilitate their safe operation on public thoroughfares
Permit is required for air compressor - CORRECT ANSWER. that compresses air
above 100 PSI
Types of air compressors - CORRECT ANSWER. (1) reciprocating;
(2)centrifugal;
(3)solar; and
(4)rotary
*Difference is the way in which they compress air
, How 3do 3air 3compressors 3work 3- 3 CORRECT 3ANSWER. take 3the 3air 3in 3a 3room
3and 3force 3it 3into 3a 3container 3UNDER 3PRESSURE. 3The 3more 3air 3forced 3into
3the 3container, 3the 3greater 3the 3pressure. 3Compressed 3air 3can 3be 3discharged
3from 3the 3container 3at 3a 3controlled 3rate.
Most 3common 3air 3compressor 3- 3 CORRECT 3ANSWER. Reciprocating
Air 3compressors 3are 3sometimes 3called 3- 3 CORRECT 3ANSWER. air 3pumps
Air 3compressors 3can 3be 3powered 3by: 3- 3 CORRECT 3ANSWER. (1) 3electric
3motors;
(2)internal 3combustion 3engines; 3or
(3)steam 3turbines
Explosions 3& 3air 3compressors 3- 3 CORRECT 3ANSWER. If 3there 3is 3a 3build 3up 3of
3flammable 3gases 3(ex: 3in 3service 3stations 3and 3workshops), 3those 3gases 3are
3heavier 3than 3air 3and 3fall 3to 3the 3floor 3before 3spreading 3outward. 3These
3gases 3are 3easily 3ignited 3by 3sparks 3and 3high 3temperatures--which
3INCLUDES 3the 3heat 3generated 3by 3an 3air 3compressor.
To 3avoid 3explosions 3w/ 3air 3compressors 3- 3 CORRECT 3ANSWER. Raise 3air
3compressor 3at 3LEAST 35 3feet 3above 3ground 3level 3so 3that 3no 3flammable
3gases 3are 3drawn 3into 3the 3compressor. 3To 3meet 3the 3height 3requirement
3you 3can 3place 3compressor 3on 3a 3shelf 3or 3bench 3OR 3the 3air 3receiver 3tank
3may 3be 3turned 3and 3stood 3on 3end 3w/ 3the 3air 3compressor 3bolted 3to 3the 3top
3of 3the 3tank.
Power 3to 3air 3compressor 3- 3 CORRECT 3ANSWER. entire 3unit 3is 3driven 3by 3an
3electric 3motor. 3Motor 3activates 3a 3series 3of 3drive 3belts. 3Belts 3power 3the
3moving 3parts 3of 3the 3unit--like 3w/ 3power 3steering 3and 3alternator 3in
3automobile
Compression 3Chamber 3operation 3- 3 CORRECT 3ANSWER. Air 3is 3compressed
3in 3compression 3chamber 3which 3consists 3of 3a 3PISTON 3inside 3a 3CYLINDER.
3Piston 3moves 3up 3and 3down.
When 3piston 3moves 3down 3-->draws 3air 3into 3cylinder, 3through 3INTAKE
3VALVE 3(valve 3automatically 3opens 3when 3piston 3moves 3down).
When 3piston 3moves 3up-->air 3is 3compressed 3(intake 3vale 3automatically
3closes 3to 3avoid 3air 3escaping 3from 3cylinder).
Air 3Reciever 3Operation 3- 3 CORRECT 3ANSWER. 3 When 3air 3pressure 3reaches 3a
3certain 3level, 3it 3forces 3open 3a 3DISCHARGE 3VALVE 3(which 3is 3spring 3loaded).
3This 3releases 3compressed 3air 3into 3air 3reciever 3(aka 3air 3tank), 3which 3is 3what
3supplies 3compressed 3air 3when 3needed.
Single 3Stage 3Air 3Compressor 3- 3 CORRECT 3ANSWER. with 3one 3cylinder 3and 3one
3piston
