The diac can operate ____ polarity.

A. only on positive
B. only on negative
C. on either
D. only without


Answer: C

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You have a failed 24V transformer in a circuit requiring an amperage of 2.5A. You can replace this transformer with a new one rated at _____.

a. 40VA b. 50VA c. 54VA d. 75VA

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If the temperature drops below 50ºF, a hamster will go into ____________________

Fill in the blank(s) with correct word

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The horizontal braces called walers are held in place on the outside of forms by _____

a. wedge bolts b. form ties c. waler clips d. bracing pins

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These are designed to protect you from electrical shock by interrupting a household circuit when there is a difference in the currents in the hot and neutral wires:

What will be an ideal response?

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