Which of the following elements is not a power-consuming device?
A. The sequencer heater coil.
B. A magnetic solenoid that moves the armature in a contactor.
C. The contacts of a contactor.
D. The blower motor.
Answer: C
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When the drive gear has a smaller diameter and fewer teeth than the driven gear, it is referred to as ________.
A) Direct drive B) Speed multiplication C) Gear reduction D) None of these is correct
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What is the difference between primary roof drains and secondary roof drains?
What will be an ideal response?
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¿Qué material fue uno de los primeros en usarse a nivel comercial para el aislamiento?
a. Fibra de vidrio b. Espuma plástica c. Lana mineral. d. Vidrio celular.
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In a phase-shift oscillator, the three RC circuits produce a combined phase shift of
A) 90° B) 180° C) 270° D) 0°
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