單項(xiàng)選擇題Turbocharging of marine diesel engine is achieved by two distinct methods, () termed the constant pressure and the pulse system.

A.respectable
B.respectful
C.respective
D.respectively


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2.單項(xiàng)選擇題To prevent the build up of high stresses engine must not be run continuously ().

A.faster than dead slow speed
B.slower than dead slow speed
C.with the output of MCR
D.at critical speeds

4.單項(xiàng)選擇題To avoid scavenge fires occurring the engine timing and equipment maintenance ().

A.should be correctly carried out
B.should correctly be taken place
C.should carded with care
D.must to carry out with great care

5.單項(xiàng)選擇題To avoid scavenge fires () the engine timing and equipment maintenance should be correctly carried out.

A.occurred
B.occurring
C.not happening
D.occur