單項(xiàng)選擇題

If the refrigeration compressor crankcase is sweating, the cause may be due to （）.

A.a shortage of refrigerant
B.the compressor running continuously
C.liquid refrigerant returning to the compressor
D.the compressor short cycling on the high pressure cutout

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單項(xiàng)選擇題

The primary reason low pressure evaporators produce distillate more efficiently, and with less scale formation, than high pressure evaporators is （）.

A.evaporation is accomplished in a vacuum
B.due to the higher temperature of the incoming feed
C.due to the latent heat of evaporation principle
D.evaporation in a submerged medium produces more distillate

單項(xiàng)選擇題

Vessel propellers are classified as being right hand or left handA right hand propeller turns clockwise when viewed from（）.

A.the bow
B.the stem
C.the port side
D.the starboard side

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If the refrigeration compressor crankcase is sweating, the cause may be due to （）.

你可能感興趣的試題

The primary reason low pressure evaporators produce distillate more efficiently, and with less scale formation, than high pressure evaporators is （）.

Vessel propellers are classified as being right hand or left handA right hand propeller turns clockwise when viewed from（）.

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久