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Before attempting to put out a class “C” fire involving an electric-driven centrifugal pump, you should FIRST （）.
A . insulate your shoes
B . ground the fire hose
C . secure its power supply
D . start the fire pum
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To extinguish an electrical fire, you should use （）.
A . mechanical foam
B . chemical foam
C . carbon dioxide
D . soda acid
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Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）
A . Use the CO
system and evacuate the engine room
B . Use the fire main system and evacuate the engine room
C . Evacuate the engine room and use the CO
system
D . Evacuate the engine room and use the fire main system
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Inductance is the property of an electric circuit that （）
A、opposes any change in the applied voltage
B、opposes any change in the current flow through the circuit
C、aids any changes in the applied voltage
D、aids any changes in the current through the circuit
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It is necessary to secure the forced ventilation to a compartment where there is a fire to（）.
A . allow the exhaust fans to remove smoke
B . extinguish the fire by carbon monoxide smothering
C . prevent additional oxygen from reaching the fire
D . protect fire fighting personnel from smoke
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If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）
A . Dry chemical
B . Halon
C . Low velocity fog
D . Steam
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An electric heater built into some smaller diesel engines is used to （）.
A . raise lube oil viscosity for easier starting in cold weather
B . increase air inlet temperature
C . increase compression ratio
D . increase jacket water temperature for easier starting in cold weather
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Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.
A . Use the C0
system and evacuate the engine room
B . Use the fire main system and evacuate the engine room
C . Evacuate the engine room and use the C0
system
D . Evacuate the engine room and use the fire main system
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When there is a flame failure in an automatically fired auxiliary boiler, the （）.
A . air supply is shut off
B . fuel supply is shut off
C . water supply is shut off
D . safety valve lift
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The backup system on an electric start survival craft is a（）.
A . hydraulic system
B . pneumatic system
C . spare battery
D . hand crank
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A fire in an electrical generator is considered to be （）.
A . Class "A"
B . Class "B"
C . Class "C"
D . Class "D"
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（），as the chemical extinguisher agent，should be used for an electric fire.
A . dry chemical or foam
B . foam or soda acid
C . carbon dioxide or foam
D . carbon dioxide or dry chemical
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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
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Which of the listed classes of fire is considered as one involving electrical equipment?（）
A . Class "A"
B . Class "B"
C . Class "C"
D . Class "D"
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Which firefighting method is an example of an indirect attack on a fire?（）.
A . Bouncing a straight stream of water off the overhead to create spray effect
B . Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C . Flooding a paint locker with CO
and sealing the compartment
D . Cooling adjacent bulkheads with water to prevent the spread of the fire by conductio
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When there is a fire in a large electric motor, normally the very FIRST step is to （）
A . secure the electric supply
B . ventilate area to remove smoke
C . start the fire pump and lead out hose
D . apply foam
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The primary function of an electric motor is to （）
A . develop torque
B . generate high voltages
C . produce a magnetic field
D . generate high electrical resistance
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You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST （）.
A . secure the fuel manifold
B . shut off power to the pump
C . shut off the power ventilation
D . spray water on the fire
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An electrical device which prevents an action from occurring until all other required conditions are met is called a/an （）.
A . limit
B . monitor
C . modulator
D . interlock
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When a rescuer finds an electrical burn victim in the vicinity of live electrical equipment or wiring，his first step is to（）.
A . flush water over any burned area of the patient
B . apply ointment to the burned areas on the patient
C . get assistance to shut down electrical power in the area
D . remove the patient from the vicinity of the live electrical equipment or wiring
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There is a fire in the crew’s quarters of your vessel. You should（）.
A . ventilate the quarters as much as possible
B . prepare to abandon ship
C . close all ventilation to the quarters if possible
D . attempt to put the fire out yourself before sounding the alarm
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Which of the listed fire extinguishers is recommended for use on an electrical switchboard fire？
A.CO2
B.ABC dry chemical
C.CO2 propelled foam
D.All of the above
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One of my______sayings is "there is no smoke without fire".
A．favorite
B．alike
C．favorable
D．likely
-
Where do cars get their energy from？ For most cars, the answer is petrol. 1_____some cars use electricity. These cars have 2 _____motors that get their power from large batteries. In 3___, there are even cars that have 4_____ an electric motor and a petrol motor. These types of cars are 5_____ hybrid (混合) cars.
Most people tend to think of electric cars as a new 6 ____, but they have been around for a long time. In the 7_____ 19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced.But 8____ the petrol engine became easier to make and more powerful, this type of engines became the most 9 ____.Interest in electric cars was high in the l970s and 1980s because 10____ became very expensive.Recently, electric cars have again become well-liked because people want cars that pollute 11_____.
Electric cars are better than petrol cars 12______ several ways. The biggest benefit is reduced pollution.In areas 13_____ there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a 14 _____in the dependence on foreign oil.Several countries don’t want to 15 _____on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil.
(15分)
(1)第1题最佳答案应选()(1分)
A. But
B. Nor
C. Or
D. And
(2)第2题最佳答案应选()(1分)
A. traditional
B. common
C. same
D. special
(3)第3题最佳答案应选()(1分)
A. summary
B. detail
C. time
D. addition
(4)第4题最佳答案应选()(1分)
A. all
B. both
C. either
D. neither
(5)第5题最佳答案应选()(1分)
A. described
B. regarded
C. called
D. known
(6)第6题最佳答案应选()(1分)
A. invention
B. influence
C. instrument
D. intention
(7)第7题最佳答案应选()(1分)
A. last
B. beginning
C. recent
D. late
(8)第8题最佳答案应选()(1分)
A. unless
B. after
C. before
D. until
(9)第9题最佳答案应选()(1分)
A. popular
B. comfortable
C. difficult
D. dangerous
(10)第10题最佳答案应选()(1分)
A. motors
B. power
C. cars
D. oil
(11)第11题最佳答案应选()(1分)
A. much
B. more
C. less
D. few
(12)第12题最佳答案应选()(1分)
A. by
B. in
C. at
D. on
(13)第13题最佳答案应选()(1分)
A. when
B. where
C. what
D. which
(14)第14题最佳答案应选()(1分)
A. start
B. need
C. reduction
D. rise
(15)第15题最佳答案应选()(1分)
A. put
B. hold
C. rely
D. keep
