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10 Cards in this Set
- Front
- Back
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On a Reciporcating system with 150lbs of refrigerant, where would you find the stop valves?
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On the Compressor inlet and discharge lines.
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What type of compressor commonly uses R-11 ?
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Large Centrifugal.
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A Halide Torch in a refrigeration system detects what ?
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Checks for leaks in a Freon system.
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If an electric motor has been re-wound, reducing the amount of windings by 1/2, how will the motor power be effected ?
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It will Decrease by 1/2.
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What is the minumum waiting time when testing refrigerant piping for leaks?
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30 Minutes.
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In a system with a high side float, frost on the suction line is an indication of what ?
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An exxcessive amount of refrigerant in the system.
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What type of expansion valve would you use with a system under 3 tons ?
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Thermostatic.
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Testing for a leak using a Halide Torch, what would cause the flame to turn Yellow ?
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Restriction in the line.
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Does a Low Pressure Contoller start and stop a refrigeration cycle ?
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Yes
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Would Gas in the Liquid Line cause High Discharge Pressure ?
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No
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