If your voltmeter had a tolerance of +/- 2% and you applied 68.7 VAC to it:
What will be an ideal response?
Any reading between 67.33 VAC and 70.07 VAC would be considered within tolerance.
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Potential transformers have highly accurate ratios between the primary and secondary voltage values; generally the error is less than ____________________%.
Fill in the blank(s) with the appropriate word(s).
A condensing unit with four motor-compressor assemblies manifolded together must provide the suction pressure for the ____.
A. lowest temperature evaporator B. midrange temperature evaporator C. highest temperature evaporator D. none of the above
The Btu (British thermal unit) is defined as the amount of heat required to raise the temperature of 1 lbm of water by 1°F. If a home has a furnace that is rated at 1000 Btu/min what is this rating in kW?
a. 17.584 kW b. 17584 kW c. 293 kW d. 0.293 kW
What force is primarily responsible for piston ring seal?
A. Cylinder pressure. B. Radial ring pressure. C. Crankcase pressure. D. Oil viscosity.