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Question:
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In a circuit having leading power factor, voltage waveform will _____ the current waveform:
Lag
As the number of passes in fire tube boiler increases, its efficiency will _____ :
Remains same
When a system is circulating an excessive amount of oil, the oil indicator may become saturated. This results in the indicator to appear in _____ color
Brown
Which of the following process is used for carrying out gas phase filtration: (Multiple Answer Question):
Chemical reaction
Adsorption
A thermostatic expansion valve modulates to maintain suction _____:
Superheat
One amp is defined as which of the following:
One coulomb / second
A machine functions as a humidifier when the temperature of the spray water is _____ that of at which the moisture in the air will condense:
Above
Excessive pressure drop in liquid lines will result in which of the following:
Both the options are correct
12,000 B.t.u.’s equals _____ ton:
1
Energy storing devices such as capacitors and inductors charges and discharges in _____ manner:
Exponential
The AH compressors are rated in _____:
Btu/h
The wetback fire tube boiler has more heating surface compared to dryback fire tube boiler:
True
What agency regulates cylinders and chemicals transported in a service vehicle
DOT
Which of the following device has the function to prevent migration of liquid refrigerant and oil:
Crankcase heater
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