更多"To operate a centrifugal fire pump "的相关试题:
[单项选择]The discharge side of every fire pump must be equipped with a（）.
A. gate valve
B. pressure gauge
C. check valve
D. strainer
[单项选择]Each fire pump on a ship must have a pressure gauge located at（）.
A. the pump discharge
B. the manifold connection
C. each fire station discharge
D. the pump station
[单项选择]Each fire pump on a tanker must have a pressure gauge located at（）.
A. the pump discharge
B. the manifold connection
C. each fire station discharge
D. the pump station
[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]CAPA全称是（）
A. 纠正
B. 纠正措施
C. 预防措施
D. 纠正和预防措施
[单项选择]Which pump is the self-priming pump?（）
A. turbine
B. centrifugal
C. ejector
D. mixed flow
[单项选择]The （）pump is usually used as the bilge feed pump to an oily water separator.
A. turbine
B. screw
C. vane
D. ejector
[单项选择]Fire dampers prevent the fire spreading through the process of （）.
A. convection
B. conduction
C. radiation
D. direct contact
[单项选择]A （） pump is that where the volume of the pump chamber is alternately increased to draw the liquid in and then decreased to force the liquid out.
A. injector
B. positive displacement
C. centrifugal
D. centripetal
[单项选择]A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
A. a low velocity spray applicator
B. a water spray or solid stream
C. at least two spray patterns of water
D. at least 25 psi delivered pressure
[单项选择]The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to （）.
A. use self-contained breathing apparatus
B. use various types of portable fire extinguishers
C. effect a rescue in a smoke-filled space wearing breathing apparatus
D. All of the above
[单项选择]A mixed-flow pump is a （） pump classified by the working principle.
A. self priming
B. positive displacement
C. reciprocating
D. impeller
[单项选择]On a class B fire，which portable fire extinguisher would be the LEAST desirable?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Dry chemical
D. Foam
[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
[单项选择]Fire dampers prevent the spread of fire by（）.
A. conduction
B. convection
C. radiation
D. direct contact
