What happens when the electrical contacts close in the motorized valve?
A) The circulator pump starts. B) The circulator pump stops.
C) The bypass pump starts. D) The bypass pump stops.
A
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The maximum number of binary states in which a counter can exist depends on the number of flip-flops in the counter. This can be expressed as ____.
A. N = 2n B. N = 2n+ 1 C. N = 2n + 1 D. N = 2n - 1
Which of the following interior compartment temperatures are commonly used for refrigerated freight?
A. 35 degrees F (2 degrees C) B. 0 degrees F (-18 degrees C) C. -20 degrees F (-29 degrees C) D. all of the above
A __________ is used to measure very low pressures above the flame in a heating appliance to verify the flow of flue gases up a chimney or vent
A. draft gauge B. pressure gauge C. smoke tester D. vacuum gauge
Describe the phase relationship between current and voltage in an inductive AC circuit.
What will be an ideal response?