What can occur if there is a temporary loss of flow to one or more impellers or stages of the compressor?
A. Vibration
B. Overheating
C. Overpressurization
D. Surging
A. Incorrect. Common causes of vibration and surging include impeller imbalance or damage, worn bearings, piping pulsation, a misaligned shaft, damaged couplings, and bearing or seal damage.
B. Incorrect. Compressor overheating can be caused by a loss of cooling, improper lubrication, uncooled recycling, or valve malfunction.
C. Incorrect. Compressor overpressurization can occur if the valves associated with the compressor are incorrectly closed or blocked.
D. Correct. Surging is caused by a temporary loss of flow to one or more impellers or stages of the compressor.
You might also like to view...
Which of the following is not an ASTM designation for steel bolts?
A) A307 bolts B) A325 bolts C) A490 bolts D) A507 bolts
A standard channel shape having a nominal depth of 8 inches and a weight of 22 pounds per foot would be designated _____.
a. M8 3 22 b. S8 3 22 c. C22 3 8 d. C8 3 22
The term ____ refers to a "black hole"; any data sent to this device is gone forever.
A. void B. root C. null D. console
Technician A says that a defective spark plug wire can cause an engine misfire. Technician B says that a defective spark plug can cause an engine misfire. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B