What can be caused by impeller imbalance or damage?
A. Vibration
B. Overheating
C. Overpressurization
D. Leakage
A. Correct. 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. Incorrect. Leaks are not caused by impeller imbalance or damage.
You might also like to view...
Draw a flowchart to calculate the compound interest accumulated by P dollars at i percent annual interest:
(a) Compounded annually (b) Compounded daily HINT: Sum = P(1 + i)?, where i is the interest rate per period and n is the number of periods_
The addressing mode that specifies the address of the operand is ________
A) memory addressing B) direct addressing C) inherent addressing D) immediate addressing
How much separation is commonly needed between the vent and intake pipes of a condensing furnace that
pass through a roof? a. 24 inches b. 12 inches c. 6 inches d. 3 inches
A curtain air bag deploys from the front pillar and roof trim.
Answer the following statement true (T) or false (F)