海船船员考试题库2022船舶动力装置题库模拟试卷271

1. [单选题]气缸套内圆表面采用（）加工，是防止拉缸事故的工艺措施之一。Ⅰ.珩磨；Ⅱ.振动；Ⅲ.机械；Ⅳ.波纹；Ⅴ.磨削。

A. Ⅰ＋Ⅱ＋Ⅳ
B. Ⅰ＋Ⅳ
C. Ⅱ＋Ⅳ
D. Ⅰ＋Ⅱ

2. [单选题]（）柴油机活塞运动部件在船上安装前必须先进行车间平台复验其相互位置精度。

A. 船员自修的
B. 进厂检修的副
C. 新造或大修的主
D. 新造发电

3. [单选题]Cast iron carrier rings, （） machined grooves, are provided for all the pistons.

A. caulked into
B. caulking into
C. pressed into
D. screwed into

4. [单选题]In an ordinary four-stroke engine the exhaust valves open （）

A. after TDC
B. before TDC
C. after BDC
D. before BDC

5. [单选题]Put in the engine turning gear Now examine thoroughly inside the crankcase to （） that everything is correct.

A. make sure
B. be sure
C. assure
D. believe

6. [单选题]The cylinder cover is not provided with （）.

A. fuel valve
B. lubricator
C. indicator valve
D. the starting valve

7. [单选题]The quantity of oil injected into the cylinder can be regulated （）.

A. by turning the pump plunger
B. by vary the fuel valve spring force
C. by no means by controlling the governor
D. by enlarging or diminishing the injection hole

8. [单选题]Impurities in the fuel oil will affect the operation of the engine, which has （） the use of separator and some other devices.

A. brought about
B. caused for
C. resulted from
D. led

9. [单选题]How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）

A. One
B. Two
C. Four
D. Eight

10. [单选题]A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the（）.

A. areas where special materials are used
B. hazardous areas
C. location of emergency repair equipment
D. type and strength of materials used

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