Troubleshooting Pumps, Compressors and Blowers Exam Questions with Answers
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Troubleshooting Pumps, Compressors and Blowers
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Troubleshooting Pumps, Compressors And Blowers
Troubleshooting Pumps, Compressors and Blowers Exam Questions with Answers
The presence of solids on seal faces of a centrifugal pump is an indication of:
a. Lubricating oil leak.
b. Seal leak.
c. Cavitation.
d. Worn-out bearing. - Answer-b
Insufficient oil in the Trico oiler of na pump in...
Troubleshooting Pumps, Compressors
and Blowers Exam Questions with
Answers
The presence of solids on seal faces of a centrifugal pump is an indication of:
a. Lubricating oil leak.
b. Seal leak.
c. Cavitation.
d. Worn-out bearing. - Answer-b
Insufficient oil in the Trico oiler of na pump indicates:
a. Gas bubbles in the casing.
b. Failure of seal oil cooling.
c. Wear and tear of bearing.
d. Leak in the oil fittings. - Answer-d
Loose crosshead in a reciprocating pump can be detected by :
a. Abnormal flow of the liquid in the pump.
b. Abnormal sounds from the pump.
c. Abnormal temperature in the discharge valve.
d. Abnormal pressure in the suction valve. - Answer-b
Which of the following conditions can cause excessive vibration in the piping system of
a reciprocating pump?
a. Bent shaft.
b. Worn-out bearing.
c. Blocked suction valve.
d. Plugged strainer. - Answer-c
Plugging in the suction strainer of the lube oil pump in a compressor can lead to:
a. Low lube oil pressure.
b. High seal oil pressure.
c. Abnormal sounds.
d. High lube oil level. - Answer-a
During routine inspection around a Hydrotreating unit Amanda notices oil leaking from a
compressor. Which of the following problems could have led to this problem?
a. Overheated bearing.
b. High lube oil level.
c. Worn-out bearing.
d. Plugged oil filters. - Answer-b
, During routine inspection Steve notices that the lube oil system of a compressor is
overheated. What could be the possible cause for the problem?
a. Reduced cooling water supply.
b. Malfunction of discharge valves.
c. Abnormal output of driver.
d. Plugged suction strainer. - Answer-a
What does a high discharge temperature in a centrifugal compressor indicate?
a. Plugging in suction strainer.
b. Restriction in discharge header.
c. Fouling of interstage coolers.
d. Leakage in the pressure valve. - Answer-c
- Answer-
High discharge pressure in a centrifugal compressor can be resolved by adjusting the:
a. Suction temperature.
b. Downstream equipment.
c. Gas composition.
d. Pressure relief device. - Answer-b
Which of the following conditions can lead to low capacity of a centrifugal compressor?
a. Leak-by in the pressure relief device.
b. Low discharge pressure.
c. Open position of the seal oil full flow valve.
d. Closed position of the suction valve. - Answer-a
Which of the following conditions can lead to a reduction in the capacity of a
reciprocating compressor?
a. Defective operation of unloaders.
b. Change in the gas composition.
c. Restriction in the discharge header.
d. Leak-by in the discharge valve. - Answer-a
Which of the following conditions causes low suction pressure in a pump?
a. Insufficient supply of lubricating oil.
b. Incorrect grade of lubricating oil.
c. Insufficient supply of liquid.
d. High output from the driver. - Answer-c
Leakage of process fluid in a pump can be detected by:
a. Abnormal sound from the bearings.
b. Abnormal vibration in the driver.
c. Abnormal temperature of the lube oil.
d. Abnormal odor from the flanges. - Answer-d
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