The Midwest produces approximately _____ percent of the nation’s milk supply
a. 50 c. 75
b. 34 d. 26
B
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Technician A says digital voltages vary in strength. Technician B says digital voltage is a specific value when on or off. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
The size of the opening of a standard metal device box used to mount a switch or receptacle in a wall is __________.
a. 2? ? 4? b. 2? ? 2? c. 4? ? 4? d. 3? ? 2?
There are two conductors, a red and a blue installed in metallic conduit. You are using a MEGGER to test for grounds. How should the two leads of the MEGGER should be connected?
A. one to the blue lead and one to the conduit B. one to the red lead and one to the conduit C. one to the blue lead and one to the red lead D. both a and b above
Contactors that are designed to control direct-current devices are generally of the ____________________ type.
Fill in the blank(s) with the appropriate word(s).