您当前的位置是：首页－>船员培训－>模拟培训－>模拟试题
Maintain Marine Engineering Control Systems

 

 

1.           In service, a pump shaft becomes overheated. What effect will this have on the ball-bearing?

A  The outer ring will contract.

B  The inner ring will expand.

C  The lubricating oil will burn.

D  The individual balls will distort.

 

2.   What jointing material is used on engine exhausts or superheated steam lines?

A  General purpose asbestos joints.

B  Preformed neoprene joints.

C  Solid copper joints.

D  Wire reinforced asbestos joints.

 

3.   Why is the centre lathe the most popular onboard machine tool?

A  Most versatile

B  Easy to maintain

C  Easy to operate

D  Easy to install

 

4.   Which machine tool would be used to machine the bore on a multi cylinder block?

A  Vertical boring machine.

B  Radial drilling machine.

C  Horizontal boring machine.

D  Horizontal milling machine.

 

5.   Which machine tool would be used to drill and tap an irregular casting?

A  Shaping machine.

B  Centre lathe.

C  Boring machine.

D  Radial arm drilling machine.

 

6.   Which machine would be used to cut a blind keyway in a shaft?

A  Horizontal milling machine.

B  Centre lathe.

C  Vertical milling machine.

D  Shaping maching.