更多"When two fire hose teams are attack"的相关试题:
[单项选择]When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.
A. threads are lubricated
B. nozzle is attached to the hose
C. female coupling has a gasket
D. hose is led out
[单项选择]Fire hose couplings（）.
A. are made of bronze，brass，or soft alloy metals
B. should be painted red in order to identify hose lengths
C. are specially hardened to prevent crushing
D. should be greased frequently
[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]Fire hose should be washed with（）.
A. salt water and a wire brush
B. caustic soap
C. mild soap and fresh water
D. a holystone
[单项选择]To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.
A. replace the gasket in the male coupling
B. reduce fire pump pressure
C. replace the gasket in the female coupling
D. rethread the male coupling
[单项选择]Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
A. American Petroleum Institute
B. National Standard Fire hose Coupling
C. American Society of Mechanical Engineers
D. Underwriter's Laboratories，Inc
[单项选择]A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.
A. fire hose might be damaged by cargo operations
B. vessel is in port
C. fire-main system is not charged
D. fire pumps are used for purposes other than supplying water to the fire main
[单项选择]The canvas covering of fire hose is called the（）.
A. casing
B. outer hose
C. line cover
D. jacket
[单项选择]When fighting a fire in an enclosed space，the hose team should crouch as low as possible to（）.
A. protect themselves from smoke
B. obtain the best available air
C. allow the heat and steam to pass overhead
D. All of the above
[单项选择]When fire pumps are used for other than firefighting service，each pipe connecting the other service (except for branch lines used for deck washing) must have a（）.
A. check valve installed in the line
B. shut off valve at a manifold near the pump
C. quick disconnect union within ten feet of the pump
D. regulator in the line set at 125 psi
[单项选择]When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
A. In sight of another
B. Sights the another
C. Not in sight of the other
D. In sight of one another
[单项选择]When installing a hydraulic hose, which of the following precautions should be taken?（）
A. The hose should not be twisted
B. The hose should be protected with a sleeve if it is subjected to rubbing
C. There should be some slack in the hose
D. All of the above
[单项选择]When a fire（）at the National Exhibition, at least then priceless paintings were completely destroyed.
A. broke off
B. broke out
C. broke down
D. broke up
[单项选择]Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine （）
A. slightly less than the line frequency
B. the same as the line frequency
C. slightly greater than the line frequency
D. All of the above
[单项选择]When paralleling two AC generators, the frequency of the machine coming on-line, immediately prior to closing its breaker, should be （）
A. slightly less than the oncoming generator frequency
B. the same as the bus frequency
C. slightly greater than the bus frequency
D. the same as the bus voltage
[单项选择]When should a fire be ventilated?（）
A. When attacking the fire directly
B. When using a steam smothering system
C. When using the fixed CO2 system
D. All of the above
[单项选择]When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.
A. over the top of the flames
B. off a bulkhead into the fire
C. in front of the fire
D. at the base of the fire
