The primary reason for the popularity of ____ in precast concrete construction is its versatility in the shop and in the field.

A. rivet connections
B. anchor bolt connections
C. welding connections
D. fastener connections


Answer: C

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Which of the following control devices is often used in both a primary and a secondary control role?

a. Pressure switches b. Humidistats c. Rupture disks d. Condenser water valves

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The closed-loop gain of an inverting amplifier circuit is

A. negative B. positive C. zero D. always infinite, assuming an ideal op amp

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The canter is a three-beat gait that averages

A. 5-10 mph B. 8-10 mph C. 10-15 mph D. 15-20 mph E. None of the above

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Pressure switches are the only pressure sensing devices that an electrician is likely to encounter on the job.

Answer the following statement true (T) or false (F)

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