Technician A says electrical switches are used to open and close electrical circuits. Technician B says electrical switches are used to control the operation of other devices. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: C
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The electromechanical control counter is similar to the electromechanical reset timer, except that the synchronous motor of the timer is replaced by a stepping motor. The stepping motor advances one step each time it is ____________________.
Fill in the blank(s) with the appropriate word(s).
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Read measurement j on the fractional-inch rule shown in the accompanying figure.
A. 5/32 B. 3/16 C. 7/32 D. 1/4
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A current flow through the body of ____________________ ampere or less can be fatal.
Fill in the blank(s) with the appropriate word(s).
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This is an opening framed into the roof to allow for window placement:
A. cornice B. eave C. fascia D. dormer
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