When electrical energy is applied to a device that can convert it to another form of energy, such as an electric motor converting it to mechanical energy, it performs ____.
a. transfer
b. kinetic energy
c. energy
d. work
d. work
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For testing samples taken from truck mixers, the concrete discharge rate should be regulated by _____.
a. the size of the discharge gate opening b. fluidity of the mix c. the capacity of the sampling container d. the rate of drum rotation
When the stop button is pressed, the dynamic braking contacts connect the dynamic braking resistor directly across the ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following systems is most suitable where a pond or lake is located fairly close to the building?
A) Air-to-air system with outdoor unit located near the water B) Air-to-water system using the pond as a buffer tank C) Water-to-air open loop system using the pond water D) Water-to-air closed loop system with loop sunk in pond
?What type of tubing coil is typically used with horizontal earth loop installations?
A. ?slinky B. ?u-tube C. ?submersible D. ?manifold