While Troubleshooting a 24-V Control Circuit Consisting of a Thermostat

question 11

True/False

While troubleshooting a 24-V control circuit consisting of a thermostat, a pressure control, and a contactor coil, the technician reads 24 volts across the thermostat, 0 volts across the pressure control, and 0 volts across the contactor coil. The technician makes the following statements. The following statements are all considered to be true.
A) The transformer is burned out.
B) The thermostat is open.
C) The contactor coil is energized.

• A) The transformer is burned out.
• B) The thermostat is open.
• C) The contactor coil is energized.

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Definitions:

Units-Of-Production Method

An approach to depreciation that allocates the cost of an asset over its useful life based on its output or usage, rather than the passage of time.

Scrap Value

The estimated resale value of an asset after its useful life is over and it can no longer be used as intended.

Double-Declining-Balance

A method that determines a depreciation amount for the first year that is approximately twice the straight-line rate.

Scrap Value

The predicted revenue from selling an asset at the conclusion of its serviceable life.