單項選擇題The emergency signal for fires is sounded on the ship’s whistle and general alarm as（）.

A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.

A.remain on course and hold speed
B.change course and put the stern to the wind
C.change course to put the wind on either beam and increase speed
D.remain on course but slack the speed

2.單項選擇題A fire starting by spontaneous combustion can be expected in which condition?（）.

A.Paints，varnish，or other liquid flammables are stowed in a dry stores locker
B.Inert cargoes such as pig iron are loaded in a wet condition
C.Oily rags are stowed in a metal pail
D.Clean mattresses are stored in contact with an electric light bulb

3.單項選擇題Control of flooding should be addressed（）.

A.first
B.following control of fire
C.following restoration of vital services
D.only if a threat exists

4.單項選擇題Backfire flame arrestors are installed on（）.

A.fuel tanks
B.spark plugs
C.carburetors
D.distributors

5.單項選擇題Each fire hydrant must have at least one spanner and at least one（）.

A.hose rack or reel
B.all purpose nozzle
C.foam applicator
D.pick axe

6.單項選擇題Automatic fire dampers in ventilation systems are operated by use of（）.

A.remotely operated valves
B.fusible links
C.C02 system pressure switches
D.heat or smoke detectors

7.單項選擇題Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.

A.outside
B.on class C fires
C.in an emergency
D.on class B fires

8.單項選擇題Each fire pump on a ship must have a pressure gauge located at（）.

A.the pump discharge
B.the manifold connection
C.each fire station discharge
D.the pump station

9.單項選擇題A fire pump may be used for other purposes if（）.

A.the other services are run off a reducing station with a pressure gage
B.one of the required pumps is kept availabe for use on the fire main system at all times
C.no relief valves are installed
D.all of the above conditions are met

10.單項選擇題Convection spreads a fire by（）.

A.heated gases flowing through ventilation systems
B.the transfer of heat across an unobstructed space
C.burning liquids flowing into another space
D.transmitting the heat of a fire through the ship's metal