Fire dampers prevent the spread of fire by（）.

相似题目

• 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

• Fusible-link fire dampers are operated by（）.

  A . 8the heat of a fire melting the link B . a break-glass and pull-cable system C . electrical controls on the bridge D . a mechanical arm outside the vent duct

  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

• Which of the following would be of immediate concern after discovering a large fire in the ship’s galley?（）

  A . An adjacent storeroom，containing spare parts B . A storeroom directly above，containing combustible fluids C . An adjacent storeroom，containing mattresses and linen D . An adjacent storeroom，marked "Stewards Stores&quot

  查看最佳答案

• Records of tests and inspections of a cargo vessel’s fire extinguishing systems shall be（）on board until the vessel’s Certificate of Inspection expires.

  A . consealed B . detained C . contained D . kept

  查看最佳答案

• The spread of fire is prevented by（）.

  A . cooling surfaces adjacent to the fire B . leaving combustibles in the endangered area C . increasing the oxygen supply D . All of the above

  查看最佳答案

• A towing vessel’s fire detection system may be certified to comply with the Coast Guard’s towing vessel fire protection regulations by（）.

  A . a Coast Guard inspector B . a registered professional engineer C . the owner or Master of the vessel D . a licensed electricia

  查看最佳答案

• 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

  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 air reservoirs must have （） fitted to prevent rupture in the event of fire.

  A . high pressure alarm B . fire alarm C . extinguishers D . fusible plug

  查看最佳答案

• What’s the attitude of many old senior officers for a minor fire?（）

  A . They would like to call out all hands out for it B . They would rather handle themselves, then call out all hands C . They prefer to put it out by themselves D . They think it is difficulty to call out all hands for a minor fire

  查看最佳答案

• When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.

  A . air from contacting the oil vapors B . permitting re-ignition boiling of the heated oil C . spontaneous combustion below the oil surface D . toxic fumes from escaping to the surface

  查看最佳答案

• The SOLAS convention prescribes that in the fire fighting drill the duty engineer should start the pump and supply deck water in（） minute(s).

  A . 5 B . 3 C . 2 D . 1

  查看最佳答案

• Automatic fire dampers in ventilation systems are operated by a（）.

  A . remote operated valve B . fusible link C . CO system pressure switch D . heat or smoke detector

  查看最佳答案

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

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

  查看最佳答案

• 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

  查看最佳答案

• What does the scene of Claudia’s father teaching them to kindle the fire symbolize?

  查看最佳答案

• According to this passage, in order to prevent forest fire, _______.

  查看最佳答案

• Not until the 1980's______in Beijing start to find ways to prevent historic buildings from destruction.

  A．some concerned citizens B．some concerning citizens C．did some concerning citizens D．did some concerned citizens

  查看最佳答案

• It is the prevention of disease ______its successful treatment that has led to the rapid increase of the world' s population.

  A．rather than B．including C．but also D．less than

  查看最佳答案

• Though the firefighters tried very hard to______the fire, it still caused at least five people’s death

  A.put off B.put out C.put on D.put forward

  查看最佳答案