更多"If not attached to the nozzle,each "的相关试题:
[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]A defective injector nozzle in a propulsion diesel engine can cause（）
A. engine power losses
B. smoking due to unburned fuel
C. high exhaust temperature readings
D. all of the above
[单项选择]Indirect cooling of fuel injector nozzle holders for diesel engines is accomplished primarily by （）.
A. heat conduction into the injected fuel oil
B. heat conduction into the water jacket wall
C. water circulation through passages in the holder
D. fuel oil circulation through passages in the holder
[单项选择]
When does auxiliary burner of rotary nozzle incinerator begin to work? （）
Ⅰ.hen igniting
Ⅱ.he sludge for dealing with is too much
Ⅲ.efore stopping incinerator
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
[单项选择]If the needle valve in a fuel injection nozzle sticks open （）.
A. no fuel will be delivered through the nozzle
B. the nozzle will overheat and crack
C. time of injection will change
D. fuel will leak into the drain line
[单项选择]When a fuel injection nozzle overheats, which of the problems listed can be expected?（）
A. The fuel metering will vary
B. The fuel will explode
C. The cylinder head will crack
D. The engine will stop
[单项选择]Distortion of the spray pattern of a nozzle or injector may be indicated by a/an（）
A. high firing pressure
B. overload of that particular cylinder
C. smoky exhaust
D. cooling water temperature rise
[单项选择]Air in the fuel lines to the fuel injection nozzles of a diesel will result in （）.
A. lower compression pressures
B. overheating without smoking
C. failure to start
D. a run away without load
[单项选择]The all-purpose nozzle will produce a fog spray when you（）.
A. pull the nozzle handle all the way back toward the operator
B. pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle
C. push the nozzle handle forward as far as it will go
D. insert a fog applicator between the fire hose and nozzle
[单项选择]A combination or all-purpose nozzle produces（）.
A. low-velocity fog only
B. a solid stream only
C. a solid stream and foam
D. a solid stream and fog
[单项选择]One advantage of the all-purpose nozzle is that it（）.
A. can fit any size hose
B. converts a stream of water into a fog
C. increases the amount of water reaching the fire
D. can spray two streams of water at the same time
[单项选择]The nozzle of a gasoline hose or can should be kept（）.
A. in contact with the fill opening to guard against static spark
B. from making contact with the fill opening to guard against static spark
C. in contact with the fill opening to allow proper venting
D. None of the above
[单项选择]A Kort nozzle is a(n)（）.
A. hollow tube surrounding the propeller used to improve thrust
B. nozzle attached to a firefighting hose
C. intake valve on a diesel engine
D. piston cylinder on a diesel engine
[单项选择]Dirt lodged on the nozzle valve seat of a fuel injection nozzle will cause（）
A. erosion and cratering of the nozzle orifices
B. fuel leakage into the nozzle drain line
C. fuel leakage before and after injection
D. insufficient fuel delivery though that nozzle
[单项选择]Water fog from an all-purpose nozzle may be used to（）.
A. fight an electrical fire
B. fight a magnesium fire
C. eliminate smoke from a compartment
D. All of the above
[单项选择]On the all-purpose nozzle，the position of the valve when the handle is all the way forward is（）.
A. shut
B. fog
C. solid stream
D. spray
[多项选择]Which two statements about Network Attached Storage are correct?（）
A. Data is accessed using NFS or CIFS.
B. Data is accessed at the block level.
C. NAS is referred to as captive storage.
D. Storage devices can be shared between users.
E. A NAS implementation is not as fast as a DAS implementation.
[单项选择]Vertical structural members attached to the floors that add strength to the floors are called（）.
A. boss plates
B. buckler plates
C. stiffeners
D. breast hooks
