A ____ is a relaxation oscillator that can function in either of two temporarily stable conditions and is capable of rapidly switching from one temporary state to the other.
A. multivibrator
B. blocking oscillator
C. Wien-bridge oscillator
D. phase-shift oscillator
Answer: A
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The low side of the refrigeration cycle means ________.
A) That the refrigerant condenses B) It is called the liquid line C) It has low pressure and temperature D) It begins at the compressor and ends at the expansion device
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A demand factor is the ratio of the maximum load used at any one time to the total connected load.
Answer the following statement true (T) or false (F)
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Describe the two roles of shielding gas in plasma arc cutting.
What will be an ideal response?
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It is possible to have a leak-free system when under a vacuum but still leak when the system pressure is above atmospheric.
Answer the following statement true (T) or false (F)
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