The compressor in an air-cooled condensing refrigeration system is short cycling on the high pressure cutout switch()
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Open the ()before starting an air compressor.
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In the refrigeration compressor the temperature of the vapor is () by compression.
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A non-return valve in the air delivery line near to the compressor must be ()type similar to the compressor discharge valve.
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Foaming of the oil in a refrigeration compressor crankcase is caused by ().
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Sludge may form in the crankcase of an air conditioning compressor as a result of ().
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If the electric motor driving an air compressor fails to start, the cause may be a ().
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Excessive oil foaming in the crankcase of a refrigeration compressor can result in ().
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The power generated in the turbine must () that required by the compressor.
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In terms of pressure and temperature in the refrigerant in the compressor, what happens to the primary?()
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The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the ()
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In the () refrigeration compressor one end of the crank shaft extends through the crankcase house for connection, via a coupling or pulley, to an external drive motor.
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The purpose of an air compressor unloading device is to ()
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An important consideration in selecting a lubricating oil for use in a refrigeration compressor is for the oil to ()
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Which of the following statements describes the function of an air compressor intake filter?()
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A dirty intercooler on the ship service air compressor will result in ().
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Condensate must be drained from the intercooler and after-coolers of an air compressor because ().
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Broken valve strips in an operating low pressure, air compressor will cause ().
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The air charge leaving an intercooler, or after-cooler of an air compressor can be expected to be ().
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The unloading system on an air compressor will ().
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Air blowing from the intake air filter of an operating air compressor indicates ().
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Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?()
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The loss of () from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.
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When a refrigeration compressor is in the ‘off’ cycle, the thermal expansion valve will().
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When a refrigeration compressor is in the ‘off’ cycle, the thermal expansion valve will .
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