A compressor that uses a large off-center rotating shaft and multiple blades that follow the cylinder walls as the shaft rotates is a:
A) Rotary blade rotary compressor. B) Rotary screw compressor.
C) Reciprocating compressor. D) Stationary blade rotary compressor.
A
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The crankcase heater protects the compressor on startup by:
A) Providing an extra heat source, making the compressor's job easier. B) Keeping the oil warm so that it does not become too thick to lubricate properly. C) Drying out any water in the oil. D) Vaporizing any liquid refrigerant that may enter the compressor during the OFF-cycle.
A 1% slope is the equivalent of approximately how many inches per foot?
a. ? b. ¼ c. ½ d. 1
The _________ plan section sometimes consists of demolition plus the new grading plan.
Fill in the blank(s) with the appropriate word(s).
What questions should construction companies ask when assessing job sites for eye hazards?
What will be an ideal response?