最新輪機英語題庫

1、dered when choosing the joint, which must be so installed that it is neither over-compressed nor over-extendedThe bold and italic word which probably means _ A maximum working temperature B minimum working temperature C the joint D the insulating material 2201. In usual marine applications, bellows

2、joints are designed and fitted to accommodate straight line axial movement only and the associated piping requires adequate anchors and guides to prevent misalignmentAccording to the above sentence, which of the following statements is true? A The marine bellows joints are attached in the accommodat

3、ion only B The bellows joints should be attached to anchors C The associated piping should be thrown into the water like as anchors D The connecting piping with the joints should be fixed firmly 2202. Disastrous explosions have been caused by accumulations of oil or oil vapour in air lines not drain

4、edAccording to the above sentence, which of the following statements is true? A Oil vapour in air piping are dangerous B Explosion will cause oil vapouring in air lines C Oil vapour in air piping should be drained D Oil in air piping should not be drained 2203. It is usual to identify the fluids in

5、pipes by bands of paint at intervals, and the engineer should familiarize himself with the code in useAccording to the above sentence, which of the following statements is true? A People can know the types of fluids in pipes by feeling with hands B There are series of rings painted in the pipes to s

6、how various fluids C Engineers should wear cards standing for ranks D Engineer knows his own code very well 2204. It should be apparent that little or nothing is gained by opening a drain at the same time as or after admitting steamThe above sentence probably means _ A There is apparent condensate i

7、n piping B The steam is not discovered after admitting steam C The condensate should be fully loaded in the piping as admitting steam D The condensate should be fully drained from the piping while admitting steam 2205. Cocks and valves control or interrupt flow, and have internal passages arranged s

8、o that they can be restricted or closed: in cocks, by rotating the plug, and in valves, by lowering, raising or rotating a disc in relation to a seating surfaceAccording to the above sentence, which of the following statements is not true? A Flows of fluids can be restricted by both cocks and valves

9、 B There are seats in the internal passages of valves C A disc of valve only moves up and down D We can infer that there is a bore in cock ping 2206. The globe valve has a bulbous body, housing a valve seat and screw down plug or disc arranged at right angles to the axis of the pipeAccording to the

10、above sentence, which of the following statements is not true? A The profile of the valve is li in bilge well 4144. A vessel is required to carry an Oil Record Book Part I to log entries in the book regarding the _ A discharge of ballast or cleaning water from fuel tanks 壓載水排油艙清洗 B sounding levels o

11、f all fuel tanks on a daily basis C grade and specific gravity of all fuel oil carded D fuel consumption rates on a weekly basis 4145. A segregated ballast system is a system where _ A all ballast is processed through the oily water separator B ballast is taken on and discharged through a separate m

12、ain deck riser C ballast and cargo tanks are separated by cofferdams D all ballast lines, tanks, and pumps are independent of those used for oil 4146. The abbreviation GM is used to represent the _ A height of the metacenter B fighting arm C righting moment D metacentric height 穩(wěn)性高度 4147. Which of t

13、he following statements describes one of the functions of the ballast system? A To permit flooding of any fuel oil storage tank on any class of ship B To use it as a secondary service system C To store reserve feed or potable water for extended cruises D To stabilize the ship by flooding certain des

14、igned tanks with seawater 4148. The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the _ A flash point B fire point 燃點 C upper explosive limit D lower explosive limit 4149. Which of the following operations aboard a tanker must be recorded in the Oil Record Book _ A