The shaft seal on an open compressor is more complicated than the gaskets and seals on other parts of the compressor because:
A) It must seal against a higher pressure.
B) It must seal a shaft that is turning.
C) It must seal in a vacuum.
D) It is subjected to both refrigerant and oil while other seals and gaskets are not.
B
You might also like to view...
The primary reason for providing core holes in bricks is to ______.
A) provide uniform drying and firing of bricks. B) increase the shear resistance of masonry walls. C) reduce the weight of bricks. D) none of the above.
Plants that freeze before receiving a heavy load of snow or ice are especially vulnerable to injury
Indicate whether the statement is true or false
Resistance-start motor has a start winding, which is a coil made of many turns of heavy gauge wire
Indicate whether the statement is true or false
A V-belt which touches the bottom of the groove in a sheave indicates:
A. perfect fit. B. worn sheave or belt. C. worn shaft. D. worn idler.