How can the safety lockout be reset?
A) turning on the power to the ignition module B) setting the thermostat below room temperature
C) recirculating products of combustion D) purging the combustion air blower
B
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How do ultrasonic detectors operate and what can they determine?
What will be an ideal response?
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19.7 + 8.4 + 16.3 =
A) 33.4 B) 43.4 C) 44.4 D) 34.4
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What is the difference between a system dependent and system independent recovery devices?
What will be an ideal response?
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When an NTC thermistor is used as an oil temperature sensor, what happens to the signal voltage when oil temperature increases?
A. nothing B. decreases C. increases D. reverse biases
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