Checking for excessive circuit resistance is being discussed. Technician A says voltage drop testing is used to identify excessive unwanted resistance in the circuitry. Technician B says measuring resistance is the most accurate method. Who is correct?
A. Technician A
B. Technician B
C. Both A and B
D. Neither A nor B
Answer: A
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The ____________________ method uses high-frequency sound waves to produce the bond or to aid with heat in the bonding.
Fill in the blank(s) with the appropriate word(s).
A 1Ø compressor (CSIR) has proper voltage, starts and runs for about 5 seconds, then goes out on overload. What is the most likely problem?
a. The start capacitor is bad. b. The compressor is locked up. c. The start relay contacts are stuck open. d. The start relay contacts are welded closed.
Type USE cable used for service laterals can ___.
A. be contained in a raceway B. be locally grounded C. emerge aboveground at outside terminations D. be indirectly buried
Which of the following is an incorrect statement about the use of turnbuckles?
a. Turnbuckles are used to adjust the length of rigging connections. b. The working load limit of a hook-end turnbuckle is greater than comparably sized eye and eye turnbuckles. c. Turnbuckles should be tightened with a wrench of the proper size. d. When using multi-legged slings, only one turnbuckle should be used per leg.