A column of water 1 ft high exerts a pressure of ____.
A. 0.277 psig
B. 0.299 psig
C. 0.433 psig
D. 14.696 psig
Answer: C
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Answer the following statement(s) true (T) or false (F)
1. With variable torque loads, the torque varies as the square of the speed. 2. The electronic shear pin reacts to the amount—and rate —of current increase to the motor. 3. The half-wave rectifier circuit requires two diodes and the use of a center-tapped secondary AC transformer. 4. In a three-phase rectifier system, the DC level remains high and the ripple percentage is very low; therefore, the DC supply needs very little filtering. 5. The armature power is typically controlled by an SCR that is turned on at different points in the waveform to adjust the voltage to the motor armature to control the speed.
When designing your new shop's parking area which of these items must be considered?
A) To save costs, employees and customers will use the same parking area B) Clearly marked customer parking C) Both A and B D) Neither A nor B
-45 ÷ (-3 ) =
A) -42 B) 15 C) -15 D) None of these
Why is subcooling desirable?
What will be an ideal response?