An AC system is being checked for proper cooling.

An AC system is being checked for proper cooling. Technician A says to turn on the AC system and operate the engine at 1500 to 2000 RPM for 5 to 10 minutes before checking the outlet temperature. Technician B says that the temperature can be checked as soon as 1500 RPM is reached. Which technician is correct?
A.Technician A only
B.Technician B only
C.Both technicians
D.Neither technician


A.Technician A only

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The Jensen Electric Co. fire alarm system uses a combination of smoke detectors and ____.

A. cameras B. sensor microchips C. manual pull handles D. keys

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An AISI 304 stainless steel sheet is going through an annealing process inside an electrically heated oven. The ambient air inside the oven is 600°C, while the surrounding surfaces of the oven are at a uniform temperature of 750°C. If the emissivity of the stainless steel sheet is 0.40 and the average convection heat transfer coefficient is 10?W/m2•K, determine the temperature of the stainless steel sheet.

What will be an ideal response?

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Which device is used in alternators to change AC to DC?

A) Transistor B) Diode C) Capacitor D) None of these

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An amplifier that is biased so that the output current flows for less than half of the AC input cycle is operating as a ____ amplifier.

A. class A B. class AB C. class B D. class C

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