A compressor should never be stopped ().
相似题目
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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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If the head pressure of a reciprocating refrigeration compressor is excessive, ().
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Foaming of the oil in a refrigeration compressor crankcase is caused by ().
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When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should ().
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If a refrigeration compressor will not start, the reason may be ().
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The crankcase cover should never be allowed to open for investigation when ()
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If a refrigeration compressor is short cycling on high head pressure, you should ().
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A warmer than normal compressor suction line might be caused by ().
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If a compressor runs continuously, the cause might be a()
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Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
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If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should().
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A dirty intercooler on the ship service air compressor will result in ().
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Noise in a refrigeration compressor can be caused by ().
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Before starting an air compressor, It should be ().
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A centrifugal compressor’s purge recovery unit()
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When a DHCP server is configured, which two IP addresses should never be assignable to hosts?()
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If you want to listen well, you should listen to lots of new materials, and never stick on to one piece of material.
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When upgrading the room, we should never pay the extra charge.
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The room attendant should never touch the banknotes or documents on the desk when cleaning the guestroom.
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We should never ourselves to danger.
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Architects should never copy others’ architectural designs.
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(8) Computers should never have been invented.To what extent do you agree or disagree with this statement?
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We should never underestimate influence we can have on the children we love.
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They should never try to pursue profit health and life of people.
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