Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.
A. three
B. four
C. six
D. eight
Answer: C
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Discuss operator safety and control systems.
What will be an ideal response?
The static pressure at the expansion tank connection when the system is filled is based on the height of the system piping above the expansion tank, the type of fluid used, and a customary allowance for ____ psi pressure at the top of the system for proper operation of the air vents.
a. 1.5 b. 3.33 c. 5.0 d. 7.5
Good electrical protection for a motor includes both proper overload protection and _____.
a. current-limiting short-circuit protection b. start-up protection c. cycle regulation d. magnetic-only circuit breakers
The most accurate method of aligning centers involves making a cut and measuring for a taper
Indicate whether the statement is true or false