更多"A fire has damaged 20 bales of cott"的相关试题:
[单项选择]A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind ().
A. comes over the bow
B. blows the fire back toward the vessel
C. comes over the stern
D. comes over either beam
[单项选择]After a fire has been extinguished in a closed space, personnel may safely enter the space when ().
A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance
B. a lifeline and explosion proof flash light are used
C. all smoke and toxic fumes are removed and an adequate oxygen supply is present
D. overhaul has been completed to remove any possible source of re-ignition
[单项选择]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
[单项选择]A fire hose has a().
A. male coupling at both ends
B. female coupling at both ends
C. female coupling at the nozzle end and a male coupling at the hydrant end
D. male coupling at the nozzle end and a female coupling at the hydrant end
[单项选择]A carbon dioxide fire extinguisher has been partially discharged, and should be immediately ().
A. tagged and restowed properly in its rack
B. weighed and the charge loss recorded
C. given to the chief engineer for recharging
D. tagged "empty" and stowed separately from charged extinguishers
[单项选择]Which fire extinguishing agent has the greatest capacity for absorbing heat?()
A. Water
B. Foam
C. Dry chemical
D. Carbon Dioxide
[单项选择]Which fire fighting agent has the greatest capacity for absorbing heat?()
A. water
B. dry chemical
C. foam
D. CO2
[单项选择]Carbon dioxide as a fire fighting agent has which advantage over other agents? ()
A. It causes minimal damage
B. It is safer for personnel
C. It is cheaper
D. It is most effective on a per unit basis
[单项选择]The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE? ()
A. Fusible links must be replaced if a damper is activated
B. Fusible links are tested by applying a source of heat to them
C. Fusible links must be replaced at every inspection for certification
D. A fusible link will automatically open after a fire is extinguished and reset the damper
[单项选择]If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of ().
A. unburned carbon particles
B. excess nitrogen
C. a lack of oxygen
D. excess hydrogen
[单项选择]A vessel has been damaged by fire. The survey shows the cost of repairs will exceed the value of the repaired vessel. This is an example of a(n)().
A. constructive total loss
B. salvage loss
C. actual loss
D. preferred loss
[单项选择]All the rubber bales were separated().
A. by grade
B. by a grade
C. by the grade
D. by the grades
[单项选择]Bales close to the deckhead should be covered to prevent().
A. damage by dripping sweat
B. damage by odor contamination
C. from striking structure
D. from steel rusty