Listed below are sample questions for 3E151P from our database. Register now to start taking tests for this AFSC! We have 293 questions currently in the database for this category.
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The version of this CDC we have in the database is 1
1 . 111. (023) When conducting an operational check of the mechanical part of a heating, ventilation, air-conditioning, and refrigeration (HVAC/R) system, you should check
2 . Which refrigeration compressor is equipped with pistons and connecting rods?
3 . 110. (023) What type maintenance action do you perform on operating heating, ventilation, air-conditioning, and refrigeration (HVAC/R) systems?
Perform an operational check
4 . 41. (614) What power source is required for the bare base air conditioner?
Three-phase, four-wire, 208/220-volt alternating current (VAC)
5 . 80. (015) Which type of ice-machine evaporator operates underwater?
6 . 64. (216) What should be done to water chillers during the winter?
7 . 47. (212) You should never use hand tools in a
hot electrical panel
8 . 34. (006) The Environmental Protection Agency (EPA) has developed a Significant New Alternatives Policy (SNAP) Program. This program is used to determine
the risks that alternative refrigerants pose to human health and the environment
9 . 48. (417) Which method of cathodic protection uses a rectifier?
Impressed current system
10 . 10. (404) The clarification process is used to remove
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