FDNY A-35 QUESTIONS AND
CORRECT ANSWERS
Storage containers ✅✅ANSW-some systems force the compressed air from the receiver into
storage containers allowing it to be used later as needed.
System of Connected Air Compressors ✅✅ANSW-Air forced from one compressor into another
several time to increase pressure each time and ultimately forced into a hose line or storage
container.
Used when there is a need for air under very high pressure.
Unloading Valve ✅✅ANSW-safety component.
allows air to escape compression chamber when there is a strain on the electrical motor. This usually
occurs in the first few cycles when the compressor is first started.
Automatic in most systems but it may be manual in older compressors. Follow instruction manual
for old compressor.
Pressure Gauge ✅✅ANSW-safety component.
Indicates pressure inside receiver. CF holder should pay close attention to reading. Must NEVER
exceed manufacturer's recommendations. If greater than recommended level there could be
explosion. Pressure in the receiver is controlled by a switch; turn switch in the desired direction to
adjust pressure.
Pressure Relief Valve ✅✅ANSW-safety component.
Allows air to escape from the system when pressure is too great. Operate automatically. May
operate manually by pulling on the ring attached to the pressure relief valve
Air intake valve ✅✅ANSW-safety component.
, Fitted w/ an air filter which prevents dust from being drawn into compression cylinder. Dust in the
compressor could result in fire in the cylinder b/c of heat in the cylinder. Fire could case damage to
air compressor.
This is why its important to make sure filter is always clean and securely connected to the
compressor.
Filter & Moisture Separator Assembly (FMSA) ✅✅ANSW-safety component.
Moisture can be a problem; this filter removes moisture from compressed air.
Installed between compressor and receiver.
Drain cock attached to FMSA to drain water and dirt.
Automatic Control Device ✅✅ANSW-Attached to receiver.
Shuts down compressor when pressure in receiver is adequate and restarts when more pressure
needed.
Safety Relief Valves ✅✅ANSW-safety component.
keep compressor tank from bursting if pressures witch stops working
Constant Speed Control Switch ✅✅ANSW-safety component.
Used when steady/constant demand for compressed air.
If demand drops excess compressed air is released through pressure release valve.
Cooling system ✅✅ANSW-safety component.
CORRECT ANSWERS
Storage containers ✅✅ANSW-some systems force the compressed air from the receiver into
storage containers allowing it to be used later as needed.
System of Connected Air Compressors ✅✅ANSW-Air forced from one compressor into another
several time to increase pressure each time and ultimately forced into a hose line or storage
container.
Used when there is a need for air under very high pressure.
Unloading Valve ✅✅ANSW-safety component.
allows air to escape compression chamber when there is a strain on the electrical motor. This usually
occurs in the first few cycles when the compressor is first started.
Automatic in most systems but it may be manual in older compressors. Follow instruction manual
for old compressor.
Pressure Gauge ✅✅ANSW-safety component.
Indicates pressure inside receiver. CF holder should pay close attention to reading. Must NEVER
exceed manufacturer's recommendations. If greater than recommended level there could be
explosion. Pressure in the receiver is controlled by a switch; turn switch in the desired direction to
adjust pressure.
Pressure Relief Valve ✅✅ANSW-safety component.
Allows air to escape from the system when pressure is too great. Operate automatically. May
operate manually by pulling on the ring attached to the pressure relief valve
Air intake valve ✅✅ANSW-safety component.
, Fitted w/ an air filter which prevents dust from being drawn into compression cylinder. Dust in the
compressor could result in fire in the cylinder b/c of heat in the cylinder. Fire could case damage to
air compressor.
This is why its important to make sure filter is always clean and securely connected to the
compressor.
Filter & Moisture Separator Assembly (FMSA) ✅✅ANSW-safety component.
Moisture can be a problem; this filter removes moisture from compressed air.
Installed between compressor and receiver.
Drain cock attached to FMSA to drain water and dirt.
Automatic Control Device ✅✅ANSW-Attached to receiver.
Shuts down compressor when pressure in receiver is adequate and restarts when more pressure
needed.
Safety Relief Valves ✅✅ANSW-safety component.
keep compressor tank from bursting if pressures witch stops working
Constant Speed Control Switch ✅✅ANSW-safety component.
Used when steady/constant demand for compressed air.
If demand drops excess compressed air is released through pressure release valve.
Cooling system ✅✅ANSW-safety component.
