How is the AC compressor lubricated in an R-134a system?
A) Most compressors are a sealed unit with their own oil
B) The refrigerant oil mixes with the refrigerant
C) The oil moves through the system simply with the movement of the refrigerant
D) Uses a sump to hold 3 to 5 oz. of refrigerant oil
C) The oil moves through the system simply with the movement of the refrigerant
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Conductivity tests are sometimes known as _____ tests.
a. ultrasonic b. holiday c. penetrant d. megger
Usually, a supervisor is not involved in developing or designing a training program, but does _____.
a. implement it b. change it c. staff it d. promote it
The Wheatstone bridge is used to determine the value of an unknown _________
A. resistance B. voltage C. current D. circuit
What is the easiest way to check the voltage scale of a VOM meter?
What will be an ideal response?