Accidental flooding of the engine room bilges by the bilge main is prevented by().
A. stop-check valves installed in the bilge suction manifolds
B. using a positive displacement reciprocating bilge pump
C. installing educators in all bilge rose boxes
D. installing a swing check before each bilge valve
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Which of the following firing order may be used for a 6-cylinder engine？ ()
A. 1-2-3-4-5-6
B. 1-2-3-6-5-4
C. 1-5-3-6-2-4
D. 1-3-4-5-6-2
Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result
A. overload on the pump motor
B. low fluid level in the reservoir
C. low fluid viscosity around the shaft seal
D. high oil level in the sump
属于水不溶性多糖的是
A. 芸香糖
B. 葡萄糖
C. 纤维素
D. 淀粉
E. 阿拉伯糖
Diesel engine blow-by is the leakage of combustion gases past the().
A. oil rings only
B. compression and scraper rings
C. cylinder liner sealing
D. cylinder liner ring grooves
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