更多"The outlet at a fire hydrant may be"的相关试题:
[单项选择]No outlet on a fire hydrant may point above the horizontal in order to（）.
A. avoid kinking the hose
B. avoid personal injury during connection
C. make connecting easier
D. prevent spray on electrical equipment
[单项选择]Fire may ba spread by which means?（）.
A. Conduction of heat to adjacent surfaces
B. Direct radiation
C. Convection
D. All of the above
[单项选择]Fire may be spread by which means?（）.
A. Conduction of heat to adjacent surfaces
B. Direct radiation
C. Convection
D. All of the above
[单项选择]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
[单项选择]Multiple fire pumps may be used for other purposes provided that one pump is（）.
A. on line to the fire main
B. kept available for use on the fire main at all times
C. capable of being connected to the fire main
D. rated at or above 125 psi
[单项选择]On a ship，a fire pump may be used for other purposes if（）.
A. the other services are run off a reducing station with a pressure gage
B. a separate fire pump is available for use on the fire main
C. all other services are operated by a manifold near the pump
D. All of the above
[单项选择]A fire pump may be used for other purposes if（）.
A. the other services are run off a reducing station with a pressure gage
B. one of the required pumps is kept available for use on the fire main system at all times
C. no relief valves are installed
D. all of the above conditions are met
[单项选择]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 electrician
[单项选择]Fire detecting systems on merchant vessels may be arranged to sense （）.
A. smoke
B. rate of temperature rise
C. ionized particles
D. all of the above
[单项选择]An important step in fighting any electrical fire is to（）.
A. stop ventilation
B. stop the vessel
C. de-energize the circuit
D. apply water to extinguish the fire
[单项选择]A galley grease fire on the stove may be extinguished using（）.
A. water
B. foam
C. the range hood extinguishing system
D. fire dampers
[单项选择]A vessel may use any sound or light signals to attract the attention of another vessel as long as（）.
A. white lights are not used
B. red and green lights are not used
C. the signal cannot be mistaken for a signal authorized by the Rules
D. the vessel signals such intentions over the radiotelephone
[单项选择]The three basic elements necessary for any fire are （）.
A. heat, gas, and flames
B. fuel, heat, and oxygen
C. heat, nitrogen, and fuel
D. fuel oil, nitrogen, and oxygen
[单项选择]The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the （）
A. Navigation Log Book
B. Engine Room Log Book
C. Oil Record Book
D. Muster List
[单项选择]Waterside scale in a fire-tube boiler may cause （）.
A. increased heat transfer
B. fireside erosion
C. high steam demand
D. overheated tubes
