中华人民共和国海事局331

中华人民共和国海事局

2001年第1期海船船员适任证书全国统考试题（总第26期）

科目：轮机英语试卷代号：806

适用对象：近洋航区750-3000KW船舶二/三管轮

(本试卷卷面总分100分，及格分为70分，考试时间100分钟)

答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至74题，每题1分，第75题至78题，每题1．5分，第79题至80题，每题10分。

一、单项选择题

1．The crankshafts of medium speed engines are almost invariably solid ___ from a single piece of steel．

A．forged B．cast C．made D．shrunk

2．The injector pump is operated by a cam which drives the ___ up and down．A．piston B．drum C．plunger D．barrel

3．The fresh air is compressed and then stored in ___．

A．scavenging air receiver B．starting air bottle

C．stuffing box D．charging air receiver

4．A mono-pump is a single-screw pump．That means it consists of ___ rotor(s)．A．one B．two C．three D．four

5．A gear pump belongs to ___ according to its working principle．

A．reciprocating pumps B．positive displacement pumps

C．centrifugal pumps D．centripetal pumps

6．The internal part of boiler should be welded by yard if found ___．

A．scaled B．cracked C．shape changed D．deformed

7．In a ___ boiler the hot gases from the furnace pass through the tubes while the water is on the outside．

A．water-tube B．fire-tube C．exhaust gas D．None of the above is true．8．The separation of impurities and water from __ is essential for good combustion of diesel engines．

A．lube oil B．fuel oil C．turbine oil D．grease

9．High-speed rotation in a centrifugal purifier can produce a force ___ the force of gravity．A．many thousand times larger than B．the same as

C．many thousand times smaller D．none of the above

10．Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?

A．the hydraulic pumps B．valves

C．hydraulic cylinders D．hydraulic motors 11．___ are used for cargo handling．

A．Cranes B．Mooring winches C．Windlasses D．Foreman

12．The color of the flame on a halide torch without any refrigerant present is ______．A．green B．blue C．orange D．purple

13．The coil of wire rotating in the magnetic field produces the ______．A．voltage B．power C．current D．frequency

14．A fluid coil will ___ large quantities of heat when it changes state from a liquid to a vapor．

A．release B．absorb C．develop D．regenerate

15．In the process of ___,liquid changes into gas．

A．evaporation B．frosting C．condensing D．compressing

16．The starting current of an a．c．motor is ___ the rated current．

A．the same as B．much larger than C．less than D．equals

17．'gauge pressure' means ___ ．

A．'vacuum' B．'the excess of pressure above atmosphere'

C．'figure on a gauge' D．any of the above

18．The main generators are connected to ___ ．

A．distribution boards B．section boards

C．emergency switchboards D．main switchboards

19．With UMS, when the engine room is unwatched ___ will control the main engine．A．the bridge officer on watch B．the chief engineer

C．the duty engineer D．the duty motorman

20．If there is water in fuel, the Rpm of the diesel engine will ___．

A．decrease B．increase C．be dismantled D．be reassembled 21．The ___ of the gravity disc is too big．It cause oil to flow through the water outlet．We changed the disc and no oil is found in the water outlet．

A．gravity B．diameter

C．circumference D．cylinder

22．Prior to any overhaul work on electric equipment, it is important to ensure the circuits are ___ ．

A．live B．dead

C．excited D．on line

23．______ is a precaution which contributes to avoiding trouble under normal operating conditions．

A．Constant inspection B．Keeping constant load

C．Remaining constant temperature D．varying speed

24．At the completion of the watch each member should hand over to ___ , ensuring that he is competent to take over and carry out his duties effectively．

A．an oiler B．a pumpman

C．his relief D．his leader