Basic Prime Movers, Pumps, and Compressors Questions and Answers Fully Solved 100%
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Course
Basic Prime Movers, Pumps, and Compressors
Institution
Basic Prime Movers, Pumps, And Compressors
(True or False) Pumps are used to move only water that flows or can be made to flow. -
️️FALSE
What action is required when the air discharge temperature on the 1st stage exceeds
400°F? - ️️Secure compressor
Split phase induction motors are designed to operate on how many phase current...
Basic Prime Movers, Pumps, and
Compressors
(True or False) Pumps are used to move only water that flows or can be made to flow. -
✔️✔️FALSE
What action is required when the air discharge temperature on the 1st stage exceeds
400°F? - ✔️✔️Secure compressor
Split phase induction motors are designed to operate on how many phase currents? -
✔️✔️One
Angular alignment of pump setup is taken between which two pieces of equipment? -
✔️✔️Pump shaft and drive shaft
Rotary pumps are classified by the type of _____. - ✔️✔️rotating element employed
Large multi-stage, high capacity centrifugal pumps are in what position? -
✔️✔️Horizontal
What substance does an air lift pump use to move or lift a liquid? - ✔️✔️Compressed
air
What type of valve is installed when two or more pumps are connected to the same
suction line? - ✔️✔️Gate
Which type of reciprocating pump is most often used by the Seabees? - ✔️✔️Direct
acting
For average operating conditions, it is recommended that 1 ounce of grease be added
at what monthly intervals? - ✔️✔️3 to 6
The mechanism or linkage that transmits the mechanical power developed by the prime
mover is also known as what? - ✔️✔️Drive
How does the diesel engine produce combustion? - ✔️✔️Heat of compression
What is the recommended number of hours to wait for grout to harden before tighten
foundation bolts? - ✔️✔️48
, When the compressor reaches near normal speeds, the solenoid valve will be in what
state? - ✔️✔️Energized
What effect does the increase of the discharge line have on the velocity of the
discharge? - ✔️✔️Decreases
What assures rapid warm-up and optimum compressor performance over a wide range
of surrounding air temperatures? - ✔️✔️Combination of thermostatic valve and bypass
Suction head is expressed in what form when a negative condition exists? -
✔️✔️Inches in mercury
A low pressure air system delivers air up to how many psig? - ✔️✔️125
(True or False) If steam is used to support the fire protection system, the pump must
have a constant minimum pressure of 60 pounds of steam. - ✔️✔️FALSE
What three types of dryers are used with air compressors? - ✔️✔️Absorption,
refrigeration, and deliquescent
(True or False) Intercoolers cool the compressed air charge before it is drawn into the
next cylinder. - ✔️✔️TRUE
When replacing a drive belt on a multi-belt drive system, what must occur during
replacement procedures? - ✔️✔️All belts require replacement
What type of level is used in setting up the pump? - ✔️✔️Spirit
What needs to be installed if the pump is operating under static suction lift conditions? -
✔️✔️Foot valve
The capacity of the air lift pump depends largely on what factor? - ✔️✔️Percentage of
submergence of the foot piece
What is the result of any misalignment in excess of tolerances in the flexible coupling? -
✔️✔️Rapid wear of bushing pins
What does a lack of springiness in a belt drive indicate? - ✔️✔️Too little tension
Which of these elements is NOT used to designate the size of a reciprocating pump? -
✔️✔️Vertical stroke pressure
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