The spread of fire is prevented by（）.

相似题目

• Which of the following statements is not true concerning symptom of a fire in the scavenge air box?（）

  A . an increase in the exhaust temperature of the affected cylinder B . the turbocharger may surge C . the explosion pressure in all cylinders will rise violently D . smoke from the turbocharger air inlet filter will be see

  查看最佳答案

• 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

  查看最佳答案

• To prevent the spread of fire by convection you should （）.

  A . remove combustibiles from direct exposure B . cool the bulkhead around the fire C . close all openings to the area D . shut off electrical power

  查看最佳答案

• In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by （）.

  A . convection B . conduction C . radiation D . ventilatio

  查看最佳答案

• Fire dampers prevent the fire spreading through the process of （）.

  A . convection B . conduction C . radiation D . direct contact

  查看最佳答案

• 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

  查看最佳答案

• The fire of burning plastics is classified as （） fire.

  A . Class A B . Class B C . Class C D . Class D

  查看最佳答案

• Fire dampers prevent the spread of fire by（）.

  A . convection B . conduction C . radiation D . direct contact

  查看最佳答案

• The fire of burning paper is classified as（）fire.

  A . Class A B . Class B C . Class C D . Class D

  查看最佳答案

• 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&quot

  查看最佳答案

• To prevent the spread of fire by conduction, you should （）.

  A . cool the bulkheads around the fire B . remove combustibles from direct exposure C . close all openings to the area D . shut off all electric power

  查看最佳答案

• The spread of fire is NOT prevented by（）.

  A . shutting off the oxygen supply B . cooling surfaces adjacent to the fire C . removing combustibles from the endangered area D . removing smoke and toxic gases by ensuring adequate ventilatio

  查看最佳答案

• The fire of fuel oil is classified as（） fire.

  A . Class A B . Class B C . Class C D . Class D

  查看最佳答案

• The fire of sodium is classified as（） fire.

  A . Class A B . Class B C . Class C D . Class D

  查看最佳答案

• 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

  查看最佳答案

• A fire may be spread by which of the following means?（）

  A . Conduction of heat to adjacent surfaces B . Direct radiation C . Convection D . All of the above

  查看最佳答案

• The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.

  A . conduction B . convection C . radiation D . windage

  查看最佳答案

• The class of fire on which a blanketing effect is essential to extinguish the fire is （）.

  A . class A B . class B C . class C D . class D

  查看最佳答案

• If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.

  A . stop B . start C . speed up D . slow dow

  查看最佳答案

• Dragon is regarded as the deity in charge of fire.

  A.对 B.错

  查看最佳答案

• Since its adoption by the _____, the BP format has spread around the world and is now the most widely practiced format of debating.

  查看最佳答案

• 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

  查看最佳答案

• The source informed the reporter that though the fire in the TV show house spread rapidly, a team of four specifically trained staff______it immediately and put it out in ten minutes.

  A．paid attention to B．looked up to C．attended to D．attached importance to

  查看最佳答案