更多"Heat for igniting the fuel oil in t"的相关试题:
[单项选择]Cylinder wall temperature, fuel oil supplier, and oil passage （）.
A. are interdependent
B. are not interdependent
C. have nothing to do with each other
D. are independent
[单项选择]Fuel oil discharged to the diesel engine cylinder is atomized at the （）
A. turbocharger
B. injection nozzle tip
C. carburetor
D. fuel oil pump
[单项选择]Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.
A. within the space concerned
B. outside the space concerned
C. the throttle station
D. within the fire room
[单项选择]Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）
A. increase engine power
B. increase engine load
C. decrease engine power
D. improve fuel economy
[单项选择]Fuel oil begins injection into the cylinder of a four-stroke/cycle diesel engine during the （）.
A. intake stroke
B. exhaust stroke
C. power stroke
D. compression stroke
[单项选择]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce（）.
A. cold corrosion of the nozzles
B. fuel viscosity for better atomization
C. carbon accumulation on the nozzles
D. fuel detonation in the cylinders
[单项选择]
When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?（）
Ⅰ.filtering
Ⅱ.settling
A. Ⅰ only
B. Ⅱ only
C. either Ⅰ or Ⅱ
D. neither Ⅰ or Ⅱ
[单项选择]One engine manufacturer recommends heavy fuel oil should not be heated above 80℃ to 95℃ (176 ℉ TO 203℉) before purificationThis upper limit should be observed to ensure against（）
A. flattening of the bowl neoprene O-rings
B. operation within the explosive rang of the fuel
C. excessive purifier operating pressures
D. excessive oil viscosity
[单项选择]When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.
A. 100%
B. 80%
C. 1/2
D. 1/3
[单项选择]The quality of the fuel oil and lube oil （）, Im afraid.
A. has much to do with the operation of the engine and its life
B. have much to do with the operation of the engine and its life
C. has much doing with the operation of the engine and its life
D. have much doing with the operation of the engine and its life
[单项选择]Fuel oil contamination of an auxiliary diesel engine lube oil can result in（）
A. an increased flash point
B. higher lube oil pressures
C. an increased viscosity
D. lower lube oil pressures
[单项选择]The viscosity regulator controls the fuel oil temperature （）provide oil at the correct viscosity for combustion.
A. in order that
B. because of
C. in order to
D. owing to
[单项选择]Maintaining the proper fuel oil temperature will result in （）
A. the elimination of valve wear
B. improved atomization
C. a decrease in cylinder blow-by
D. an increase in cylinder blow-by
[单项选择]Diesel engine lube oil diluted with fuel oil is indicated by（）
A. decreased viscosity
B. decreased pour point
C. increased flash point
D. increased viscosity
[单项选择]A centrifugal fuel oil purifier should be shut down if （）
A. more sealing water is needed
B. the cover clamp needs tightening
C. the purifier has a bad vibration when started
D. water is discharged from the overflow line
[单项选择]If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）
A. remove the discharge ring
B. re-prime the purifier
C. the centrifuge to its proper speed
D. install an additional discharge ring
[单项选择]When you are transferring fuel oil to the setting tanks, precautions to be observed should include （）
A. plugging gooseneck tank vents to prevent accident overflow
B. maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line
C. sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill
D. maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the ship
[单项选择]In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.
A. a service tank
B. a settling tank
C. an expansion tank
D. a double bottom tank
[单项选择]In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.
A. a service tank
B. a collecting tank
C. a sump
D. a settling tank
