What is normal for contacts?
What will be an ideal response?
“Normal” for contacts is how they are open or closed, with the coil of the relay deenergized and time expired.
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A technician is testing a diode using a DMM in the diode test mode. She measures 0.7V when the diode is forward biased and the DMM indicates OL when the diode is reverse biased. What do these test results indicate?
A. The results indicate the diode is defective because of the OL indication when the diode is reverse biased. B. The results indicate that this is definitely not a zener diode. C. The results indicate she is not testing the diode correctly. D. The results indicate the diode is likely functioning correctly.
The ends of 1,000 kcmil conductors can be trimmed using _____.
a. scissors b. cable cutters c. pliers d. a cable reamer
The bulk of gaseous interchange in soils takes place by ________
A) diffusion B) dissolution in water C) respiration D) partial pressure of N2 E) mass flow
Types of pressure vessels commonly used in HVACR include which of the following? (You may select more than one.)
A) Oil storage tank B) Refrigerant cylinder C) Boiler D) Receiver E) Gasoline storage tank F) Accumulator