單項(xiàng)選擇題Is extra power available（）emergency while maneuvering?

A.for
B.in
C.during
D.to


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1.單項(xiàng)選擇題The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）

A.A fusible link will automatically open after a fire is extinguished and reset the damper
B.Fusible links must be replaced at every inspection for certification
C.Fusible links are tested by applying a source of heat to them
D.Fusible links must be replaced if a damper is activated

2.單項(xiàng)選擇題There is a fire aft aboard your vessel. To help fight the fire，you should（）.

A.put the wind off either beam
B.head the bow into the wind and decrease speed
C.put the stern into the wind and increase speed
D.put the stern into the wind and decrease speed

3.單項(xiàng)選擇題What is an advantage of using foam in fire fighting?（）

A.It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)
B.Most foams can be used with dry chemicals to attack a fire by two methods
C.Foam is effective on combustible metal fires
D.Foam can be made with seawater or fresh water

4.單項(xiàng)選擇題What does the term head mean when applied to a fire pump?（）

A.Length of the discharge pipe
B.Height of the discharge pipe
C.Difference between the discharge and suction pressures
D.Sum of discharge and suction pressures

5.單項(xiàng)選擇題Weight is considered during the periodic required inspection and servicing of（）.

A.CO2 (carbon dioxide) fire extinguishers
B.foam fire extinguishers
C.water (stored pressure) fire extinguishers
D.All of the above

6.單項(xiàng)選擇題Under the Carriage of Goods by Sea Act of 1936，a vessel will be liable for damage to a cargo when the damage arises out of（）.

A.delays due to seizure of the vessel
B.fire caused by fault of the carrier
C.strikes or lockouts
D.improper stowage

7.單項(xiàng)選擇題What are the most important reasons for using water fog to fight fires?（）

A.Smothers burning surfaces，organically destroys fuel
B.Cools fire and adjacent surfaces，provides protective barrier
C.Reaches areas not protected by steam or CO2 smothering systems
D.Allows fire to be attacked from leeward，saturates liquid surfaces

8.單項(xiàng)選擇題The wooden plug inserted in the vent of a damaged tank of a ship should be removed in case it is decided to（）.

A.pump from the damaged tank
B.fight a fire
C.abandon the rig
D.use the crossover system

9.單項(xiàng)選擇題What is best suited for fighting a fire in a ballast control room?（）

A.Automatic sprinkler system
B.Steam smothering system
C.Dry chemical system
D.Carbon dioxide system

10.單項(xiàng)選擇題What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）

A.Electricity
B.Chain reaction
C.Pressure
D.Smoke