更多"When does auxiliary burner of rotar"的相关试题:
[单项选择]
When does auxiliary burner of incinerator put into operation? （）
Ⅰ. start incinerator when it is cold
Ⅱ. the sludge for dealing with is little
Ⅲ. the sludge for dealing with is large
Ⅳ. the water and impurity in sludge are too much
Ⅴ. the temperature in incinerator is low
Ⅵ. dealing with little solid rubbish
A. Ⅰ+Ⅱ+Ⅲ+Ⅴ
B. Ⅰ+Ⅱ+Ⅲ+Ⅳ
C. Ⅰ+Ⅳ+Ⅴ+Ⅵ
D. Ⅰ+Ⅱ+Ⅲ+Ⅵ
[单项选择]When does the next bus leave for Glasgow? （）
A. I‘ve never been there.
B. The next one is faster.
C. They leave every hour.
D. The city is far away.
[单项选择]When does a pilot say make all lines fast ? He says it when（）.
A. the ship is very close to the pier
B. the ship is about to be in position
C. the ship is in position
D. the ship is getting alongside the pier
[单项选择]When does your father get up every morning? He（）up at six.
A. get
B. got
C. gets
D. will
[单项选择]Failure of the burner flame in an auxiliary boiler would probably be a result of（）
A. water in the fuel oil
B. broken high tension leads
C. incorrect electrode setting
D. full fuel pressure at the nozzle
[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]A special device that，when fitted into the rotary table，transmits torque to the kelly and simultaneously permits vertical movement of the kelly to make the hole is called a（）.
A. master bushing
B. kelly slips
C. kelly bushing
D. rotary bushing
[单项选择]When the truck does not work, the driver should（）engines.
A. turn on
B. turn off
C. shut up
D. close
[单项选择]What purpose does a bridge fitting serve when lashing containers?（）.
A. Ties a container stack to the deck
B. Ties a container to the container below it
C. Restrains racking loads
D. Restrains the container against horizontal motion
[单项选择]What does the term head mean when applied to a fire pump?（）
A. Length of the discharge pipe
B. Height of the discharge pipe
C. Difference between the discharge and suction pressures
D. Sum of discharge and suction pressures
[单项选择]How does a vessel’s rate of turn change when entering shallow water?（）
A. It is faster
B. It is slower
C. There is no change
D. It remains constant for varying propeller revolutions
[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]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]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]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]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
