The electronic leak detector uses a pump to pull air samples into the unit and test them for traces of __________.
What will be an ideal response?
refrigerant
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Which of the following transformers is the most appropriate type of transformer to use for series street lighting?
a. Current transformer b. Constant-current transformer c. Potential transformer d. Buck-and-boost transformer
When putting on a full-body harness, the D-ring should be located _____.
a. over the breastbone b. midway between the shoulders and waist c. between the shoulder blades d. at waist level
All of the following statements are true EXCEPT:
A. magnaflux is the common trade name for a more sophisticated type of magnetic crack detection. B. heads that are especially susceptible to cracks are often inspected by pressure testing C. crack inspection on iron heads can be performed using a simple magnetic crack detector. D. removal of 0.020" from OHC head surfaces results in about 10 degrees of retard in valve timing.
How does the heating-cycle charge compensator differ during the heating and cooling cycle?
A) The temperature of the coolant is lower during the cooling cycle. B) Most of the refrigerant leaves during the cooling cycle. C) Most of the refrigerant leaves during the heating cycle. D) Less coolant needs to be circulated during the heating cycle.