In Figure 39-46, how does the thermostat control the operation of the compressor?
What will be an ideal response?
The thermostat energizes the cooling relay. The cooling relay NO contacts close to energize the compressor contactor coil. The compressor contactor NO contacts close to energize the compressor.
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Double-line drawings are used for pipe layouts that use large sizes of pipe and fittings ____________________ inches and over.
Fill in the blank(s) with the appropriate word(s).
If the charging system voltage is hovering near 11.6 volts, stepping on the brakes will turn on the brake lights, dropping the voltage further and causing the computer to raise engine idle.
Answer the following statement true (T) or false (F)
If an R-12 refrigeration system has its air-cooled condensing unit on a 100°F roof and the condenser outlet temperature (refrigerant) is 115°F, with how much subcooling is the condenser operating?
A. 30°F B. 15°F C. 100°F D. 130°F
In a half-wave rectifier, the diode conducts ________.
A. For the entire input signal B. For only 90 degrees of the input signal C. For only 180 degrees of the input signal D. For only 270 degrees of the input signal