更多"When does auxiliary burner of incin"的相关试题:
[单项选择]
When does auxiliary burner of incinerator put into operation? （）
Ⅰ.tart incinerator when it is cold
Ⅱ.he sludge for dealing with is little
Ⅲ.he sludge for dealing with is large
Ⅳ.he water and impurity in sludge are too much
Ⅴ.he temperature in incinerator is low
Ⅵ.ealing 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 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]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]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]When the engine room is put in standby condition, the engineer in charge of the watch need not to（）
A. ensure all machinery which may be used during maneuvering is in ready
B. ensure an adequate reserve of power is available for steering gear and other requirements
C. keep the main propulsion unit controls continuously attended when in the manual mode of operation
D. ensure all machinery which may be used during maneuvering is running stably
[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]When dry chemical extinguishers are used to put out class B fires，there is a danger of reflash because dry chemical（）.
A. is not an effective agent on Class B fires
B. does little or no cooling
C. dissipates quickly
D. is rapidly absorbed by the liquid
[单项选择]When cutting wire rope，seizings are put on each side of the cut.The seizings prevent the wire from unlaying and also（）.
A. Maintain the original balance of the tension in the wires and strands
B. Prevent moisture from entering between the wires at the cut end
C. Forces lubricant from the core to protect the raw，cut end
D. All of the above
[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]Burner ignition failure in an automatically fired auxiliary boiler would be caused by（）
A. a burned out solenoid in the oil supply valve
B. high temperature excess air
C. incorrectly setting the hot-well dump valve
D. an incorrectly positioned burner snubber realy
[单项选择]In boilers, besides maintaining the burner atomizers, air diffuser vanes, fuel temperature, forced draft fan, fuel pump and other hardware in good condition, there are some adjustments on the （）that can produce a good flame for the most efficient operation.
A. fuel-air ratio
B. compression ratio
C. fuel rack
D. viscosity index
[单项选择]A burner responsible for producing black smoke in an automatic auxiliary boiler, would be caused by a （）
A. defective solenoid valve
B. dirty fuel nozzle
C. grounded high tension lead
D. faulty ignition cable connector
[单项选择]A dazzling white burner flame in the boiler furnace indicates （）.
A. proper combustion
B. water in the fuel
C. excess air
D. cold fuel oil
[单项选择]A smoking burner with a pulsating flame in auxiliary boiler, is an indication that the（）
A. fuel oil supply temperature is normal
B. burner electrode is incorrectly positioned
C. fuel／air ratio is incorrect
D. ignition current is too low
[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
