更多"The nozzle of a gasoline hose or ca"的相关试题:
[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]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]Flexible hose under pressure in a hydraulic system will （）.
A. tend to twist about its long axis
B. expand in length and in diameter
C. contract in length and expand in diameter
D. flex at right angles to the applied pressure
[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]Each hose in the fuel transfer system for helicopter refueling must have a（）.
A. static grounding device
B. quick-disconnect nozzle
C. splash guard
D. vapor recovery system
[单项选择]Pinching of the cargo hose between the vessel and the dock should be prevented by（）.
A. adjusting the hose supports
B. laying out an excess length of hose on deck
C. tying off the topping lifts and runners to winch heads
D. All of the above
[单项选择]The danger of a charged hose left unattended on deck with the nozzle open is（）.
A. the hose could burst
B. the nozzle end will whip about causing damage or injury
C. water damage to vessel's cargo or structure
D. personnel might trip over the hose
[单项选择]Each hose used for transferring vapors must（）.
A. have a design burst pressure of at least 25 psig
B. be capable of withstanding at least 2.0 psi vacuum without collapsing or constricting
C. be electrically continuous with a maximum resistance of ten thousand ohms
D. All of the above
[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 cargo hose is marked with the（）.
A. maximum working pressure
B. bursting pressure
C. safety relief valve setting
D. maximum temperature
[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]When two fire hose teams are attacking a fire they should（）.
A. use different fire hose pressures
B. use fire hoses of different sizes
C. not attack the fire from opposite sides
D. not wear protective clothing
