Explain the role of a service technician in refrigeration, heating, and air-conditioning. Why must a service technician be able to read and use all types of electric meters?
What will be an ideal response?
The service technician diagnoses and repairs problems found in refrigeration, heating, and air-conditioning systems. The service technician must be able to read and use all types of electric meters to quickly and efficiently locate electrical problems.
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When using a vernier caliper to measure, the line of measurement must be perpendicular to the beam of the caliper and must lie in the same plane as the caliper.
Answer the following statement true (T) or false (F)
When using aluminum conductors, __________ size conductor must be used to carry the same amount of current as a copper conductor.
a. a smaller b. the same c. a larger d. the same or larger
The key reasons for the popularity of a parabolic reflector are its high gain and ___________
A. directivity B. simplicity C. low cost D. bandwidth
Suction line filters are generally designed:
A) To stay in the system permanently once installed. B) To be removed after the system is clean. C) To be interchangeable with liquid line driers. D) For biflow capability in heat pumps.