FDNY A35 c ,Questions with correct Answers.
1. What are air compressors used to power?: Industrial equipment and construction tools
2. What pressure compressor require a certificate holder to operate?: 100+ psi
3. What are two examples of tools air compressors power?: Pneumatic wrenches and
air lifts in automobile repair shops
4. What are the 4 types of air compressors?: Reciprocating, centrifugal, rotary, and solar
5. How can air compressors be powered?: Electric motors, internal combustion engines, and steam
turbines
6. What can be done to prevent flammable gasses from entering air
compressors?: Position the compressor 5 feet above ground
7. What does the compression chamber consist of?: A piston inside of a cylinder
8. When the piston moves downward, what happens to the intake valve?:
It automatically opens and air is drawn into the cylinder
9. When air is compressed and the intake valve is close, which direction is
the piston moving?: It is moving upward
10. When pressure reaches a certain level, what happens with the
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, discharge valve?: It opens to allow air into the receiver
11. What is a single stage compressor?: A compressor that pumps air into the receiver after
one step of compression from one or more cylinders and pistons.
12. What is a multistage compressor?: A compressor that discharges air between multiple
cylinders before finally reaching the receiver, reaching a new level of compression after passing each cylinder
13. What happens to air when it is compressed?: It becomes heated
14. What cools the air after it's been compressed?: An intercooler
15. What is the purpose of an unloading valve?: To allow air to escape when there is
strain on the motor(usually during startup). Automatic in most cases manual on older compressors.
16. What ensures compressed air does not flow out when the unloading
valve is activated?: The check valve
17. Where is the check valve located?: Between the compressor head air line and the
unloading valve air line.
18. What can be read on the pressure gauge?: The pressure inside the air receiver
19. What allows air to escape when pressure is too great?: Pressure relieve valves
20. What is the purpose of the air intake valve?: It is fitted with an air filter and prevents dust
from entering the compressor
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1. What are air compressors used to power?: Industrial equipment and construction tools
2. What pressure compressor require a certificate holder to operate?: 100+ psi
3. What are two examples of tools air compressors power?: Pneumatic wrenches and
air lifts in automobile repair shops
4. What are the 4 types of air compressors?: Reciprocating, centrifugal, rotary, and solar
5. How can air compressors be powered?: Electric motors, internal combustion engines, and steam
turbines
6. What can be done to prevent flammable gasses from entering air
compressors?: Position the compressor 5 feet above ground
7. What does the compression chamber consist of?: A piston inside of a cylinder
8. When the piston moves downward, what happens to the intake valve?:
It automatically opens and air is drawn into the cylinder
9. When air is compressed and the intake valve is close, which direction is
the piston moving?: It is moving upward
10. When pressure reaches a certain level, what happens with the
1/
5
, discharge valve?: It opens to allow air into the receiver
11. What is a single stage compressor?: A compressor that pumps air into the receiver after
one step of compression from one or more cylinders and pistons.
12. What is a multistage compressor?: A compressor that discharges air between multiple
cylinders before finally reaching the receiver, reaching a new level of compression after passing each cylinder
13. What happens to air when it is compressed?: It becomes heated
14. What cools the air after it's been compressed?: An intercooler
15. What is the purpose of an unloading valve?: To allow air to escape when there is
strain on the motor(usually during startup). Automatic in most cases manual on older compressors.
16. What ensures compressed air does not flow out when the unloading
valve is activated?: The check valve
17. Where is the check valve located?: Between the compressor head air line and the
unloading valve air line.
18. What can be read on the pressure gauge?: The pressure inside the air receiver
19. What allows air to escape when pressure is too great?: Pressure relieve valves
20. What is the purpose of the air intake valve?: It is fitted with an air filter and prevents dust
from entering the compressor
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