GCAP INDUSTRIAL AMMONIA REFRIGERATION
TRAINING TEST BANK 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◍ Describe the basic mechanical maintenance required for different
types of compressors Answer:
◍ List several indications of components wear/failure related to
compressors Answer:
◍ explain the importance of performing proper testing of alarms and
safeties. Answer:
◍ List the different types of cooling systems used on modern
compressors and describe the maintenance requirements of each
Answer:
◍ explain the importance of belt and shaft alignment Answer:
◍ explain the value of vibration analysis as it relates to compressors and
their associated components. Answer:
, ◍ list the different types of lubrication systems and describe the general
maintenance functions required. Answer:Reciprocating compressor
lubrication systems include:
Internal force-fed and splash lubrication system-use an oil pump to force
oil directly to the Micronic type filter through an external tube to the
shaft seal chamber entering at the bottom. Drilled oil ways in the
crankshaft conducts high pressure oil to the main bearings and the rod
bearings the shaft roller bearings receive their oil through metering
orifices in the bearing covers. The oil escaping from the bearings creates
a mist, which also lubricates the upper cylinder walls, pistons and pins.
Creating the splash portion of the system. Again the internal force bed in
splash type lubrication systems are used on reciprocating compressors.
Full internal force-fed lubrication system-most modern reciprocating
compressors use the full internal force-fed method of lubrication. The
full internal force-fed system goes one step further than internal force
fed and splash system described earlier on reciprocating compressor's,
oil is not only forced to the filter, crankshaft main bearings, crankshaft
connecting rod bearings, and gauge port, but also to the pistons pin
bearings. The piston pin bearings are lubricated through drilled passages
in the connecting rods. The cylinder walls and pistons are lubricated by
oil escaping from the piston pin bearings.
On some high stage screw compressors, the oil is forced by pressure
differential to all lubricated areas the pressure difference between the
discharge in the suction is used to force oil to the bearings and rotors the
oil is return to the oil separator sump through the compressor discharge
this method cannot be used on a compressor that use sleeve type
TRAINING TEST BANK 2026 FULL QUESTIONS
AND CORRECT ANSWERS
◍ Describe the basic mechanical maintenance required for different
types of compressors Answer:
◍ List several indications of components wear/failure related to
compressors Answer:
◍ explain the importance of performing proper testing of alarms and
safeties. Answer:
◍ List the different types of cooling systems used on modern
compressors and describe the maintenance requirements of each
Answer:
◍ explain the importance of belt and shaft alignment Answer:
◍ explain the value of vibration analysis as it relates to compressors and
their associated components. Answer:
, ◍ list the different types of lubrication systems and describe the general
maintenance functions required. Answer:Reciprocating compressor
lubrication systems include:
Internal force-fed and splash lubrication system-use an oil pump to force
oil directly to the Micronic type filter through an external tube to the
shaft seal chamber entering at the bottom. Drilled oil ways in the
crankshaft conducts high pressure oil to the main bearings and the rod
bearings the shaft roller bearings receive their oil through metering
orifices in the bearing covers. The oil escaping from the bearings creates
a mist, which also lubricates the upper cylinder walls, pistons and pins.
Creating the splash portion of the system. Again the internal force bed in
splash type lubrication systems are used on reciprocating compressors.
Full internal force-fed lubrication system-most modern reciprocating
compressors use the full internal force-fed method of lubrication. The
full internal force-fed system goes one step further than internal force
fed and splash system described earlier on reciprocating compressor's,
oil is not only forced to the filter, crankshaft main bearings, crankshaft
connecting rod bearings, and gauge port, but also to the pistons pin
bearings. The piston pin bearings are lubricated through drilled passages
in the connecting rods. The cylinder walls and pistons are lubricated by
oil escaping from the piston pin bearings.
On some high stage screw compressors, the oil is forced by pressure
differential to all lubricated areas the pressure difference between the
discharge in the suction is used to force oil to the bearings and rotors the
oil is return to the oil separator sump through the compressor discharge
this method cannot be used on a compressor that use sleeve type
