What pumping principle is used on transfer pumps on a majority of diesel engines today?
A. reciprocating plunger
B. centrifugal
C. gear
D. swash plate
Answer: C
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A common practice in condensing units is to use a contactor with only one set of contacts opening only one side of the power to the unit. This is to ____.
A. reduce the cost of the contactor B. make it easier to wire the unit C. teach the service technician not to put hands in the unit with the power on D. provide off-cycle heat to the compressor
Acetylene should never be used:
A) Below 20 psi. B) Above 15 psi. C) Below 15 psi. D) Above 20 psi.
Supervisors should remember several rules when writing accident reports
A. Be brief and stick to the facts B. Be comprehensive C. List causal factors D. All of the above are rules for writing accident reports
Define the term "intrusion" and discuss the usual intent behind an intrusion event.
What will be an ideal response?