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In heat pump, what is the function of indoor coil in cooling cycle?
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Which of the following is the possible cause heat pump not operating?
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In heat pump, what is the function of indoor coil in cooling cycle?
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What can be measured with bi-metalic strip sensor?
When 170 volts is supplied to 208/230 volts compressor ………..
Which of the following device is self powered control device?
What is the smallest leak that an electronic leak detector is cable of sensing per year?
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Which of the following sensors are used to measure dew point?
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Where does the defrost thermostat is located in heat pump?
If there is a voltage reading in voltmeter which is connected across thermostat terminals indicates ……………………
Which of the following is not a heat pump class?
The amount of water vapor that moisture contains increases rapidly with increase in temperature.
Which of the sensors does not require external power supply?
In heat pump, what is the function of outdoor coil in cooling cycle?
The defrost thermostat closes when the temperature of outdoor coil drops to …………….
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A bourdon tube sensor is used to measure ………..
Which of the following heating mechanism will have high efficiency?
