Why would a preheat coil be used on the energy-recovery wheel?
A) to prevent moisture transfer to the supply air B) to prevent frost from forming on the wheel
C) to warm the exhaust air D) to dry the intake air
B
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Service conductors supplying a building (or other structure) shall not ____.
A. terminate in a panel B. be enclosed in a six-gang enclosure C. pass through the interior of another building D. have less than two disconnects
Tuggers are actually pneumatically operated _____
a. jacks b. trucks c. tow motors d. winches
Which of these controls is designed to adjust the manipulated variable in anticipation of the controlled variable deviating from set point?
A. feedback B. feedforward C. ratio D. proportional
In a center take-off power rack and pinion steering gear, the tie rods are attached to:
What will be an ideal response?