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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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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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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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A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.
A . generators
B . oil drums
C . the bridge controls
D . combustible metal
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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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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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A ground in an electrical circuit outside the engine room （）.
A . cannot be detected tinder normal conditions
B . is of no consequence to engineering personnel
C . is indicated at the branch circuit breaker panel
D . is indicated by the ground detecting lamps on the main switchboard
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A transformer in an electric circuit serves to （）
A . generate its own electrical power
B . transform electrical energy into mechanical energy
C . increase or decrease circuit voltage as required
D . convert AC current to DC current
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A foam-type portable fire extinguisher would be most useful in combating a fire in（）.
A . soild materials such as wood or bales of fiber
B . flammable liquids
C . a piece of electrical equipment
D . combustible metallic solid
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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
-
A foam-type portable fire extinguisher is most useful in fighting a fire in（）.
A . generators
B . oil drums
C . the bridge controls
D . combustible metal
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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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The electric fan has blown away the terrible smell in the hall,（）?
A . can't it
B . isn't it
C . hasn't it
D . doesn't it
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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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Electrical power is expressed in （）
A . ohms
B . volts
C . amps
D . watt
-
EDM(Electrical Discharge Machining)refers to in Chinese term
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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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There is an electric fire. Get the ________ extinguisher.
A.foam
B.water
C.dry powder
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Johnson Electric（强生电器公司) is located in Hong ...
Johnson Electric(强生电器公司) is located in Hong Kong and is a multinational enterprise(跨国企业) and world leader in the design, development and delivery of micro-motors and integrated motor(集成电机) systems. Listed in Hong Kong Stock Exchange, we have principal subsidiaries(分公司) in 14 countries and over 30,000 employees worldwide. Currently with the rapid growth of the company and continuous improvement in technology, we are striving to become the world-class provider in this industry.
