單項選擇題On a ship，a cabinet or space containing the controls or valves for the fixed firefighting system must be（）.

A.posted with instructions on the operation of the system
B.ventilated and equipped with explosion-proof switches
C.painted with red and black diagonal stripes
D.equipped with a battery powered source of emergency lighting


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題On a class B fire，which portable fire extinguisher would be the LEAST desirable?（）

A.Carbon dioxide
B.Water (stored pressure)
C.Dry chemical
D.Foam

2.單項選擇題Oily rags stored in a pile that is open to the atmosphere are a hazard because they may（）.

A.deteriorate and give off noxious gasses
B.spontaneously heat and catch fire
C.attract lice and other vermin and serve as a breeding ground
D.None of the above

3.單項選擇題Normally，potable water systems are connected directly to the（）.

A.fire-main system
B.feed-water system
C.freshwater sanitary system
D.domestic water tank

4.單項選擇題Line throwing apparatus aboard ship must contain（）.

A.two rockets，one of which shall be the buoyant type
B.three rockets，one of which shall be the buoyant type
C.four rockets，two of which shall be the buoyant type
D.five rockets，two of which shall be the buoyant type

5.單項選擇題In order for the automatic lifeboat drain to operate properly（）.

A.the cap should be removed to drain the boat when it is waterborne
B.the cage must be free of rubbish or the ball may not seat properly
C.there is an automatic ball check located in a siphon tube
D.the small lever to release the rubber ball float must be turned counterclockwise