You may find the time of slack water a

1、The pH value of water in a diesel engi

The pH value of water in a diesel engine closed cooling water system should be maintained between （）.A60 to75B80 to 95C100 to 115D120 to 135

2、The rate of heat transfer in a water-t

The rate of heat transfer in a water-tube auxiliary boiler can be increased by （）.Aoperating the boiler at less than normal water levelBinsta...

3、Trying to Find a Partner One of the

Trying to Find a Partner One of the most striking findings of a recent poll in the UK is that of the people interviewed， one in two belie...

4、Excessive alkalinity of the water in a

Excessive alkalinity of the water in an auxiliary boiler can cause （）.Acaustic embrittlement of the boiler metalBacidic corrosion of the boiler metalChard scale deposits on the boiler tubesDetching of the heat exchange surface

5、The Master of a vessel may tender a No

The Master of a vessel may tender a Notice of Readiness to the charterer when the vessel （）.Ahas completed the terms of the charter partyBis in all respects ready to loadCis in all respects ready to sailDis safely moored or at a suitable anchorage

6、Trying to Find a Partner One of the

Trying to Find a Partner One of the most striking findings of a recent poll in the UK is that of the people interviewed， one in two belie...