更多"Poor quality fuel being used in a t"的相关试题:
[单项选择]Before being used the fuel service tank should be drained of （）.
A. soda solution
B. mechanical impurities
C. ballast
D. water and residuals
[单项选择]P2板燃油流量指示系统上的FUEL USED RESET电门，其作用是（）
A. 选择正确的燃油密度
B. 选择正确的燃油温度
C. 选择燃油流量，已使用燃油，和复位燃油使用计数器
D. 只是复位已使用燃油
[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]Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.
A. two fuel oil transfer pumps provided where one is to be independent of the main engine
B. two fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engine
C. engine driven transfer pumps and only used in constant speed applications
D. the capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
[单项选择]Differential needle valves used in fuel injectors are directly closed by（）
A. cam action
B. spring force
C. fuel oil pressure
D. firing pressure
[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]
The sequence of parts in a generally used fuel oil supply system for a main engine is （）
(1)tanks in the double bottom
(2)centrifuges
(3)service tank
(4)settling tank
(5)viscosity regulator
A. (1)-(2)-(4)-(3)-(5)
B. (1)-(4)-(2)-(3)-(5)
C. (1)-(3)-(2)-(4)-(5)
D. (1)-(5)-(4)-(2)-(3)
[单项选择]If the detergent type lubricating oil being used in a diesel engine is black, the oil （）
A. must be centrifuged
B. must by filtered
C. must be changed
D. is holding finely dispersed carbon in suspension
[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]How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates（）。
A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface
B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic
C. Configure many sub-interfaces on the same subnet
D. Configure a single sub-interface to establish multiple PVC connections to multiple remote router interfaces
[单项选择]A twin screw craft being used to pick up a person who has fallen overboard from a vessel should approach if you（）.
A. reverse port engine, apply right rudder
B. reverse port engine,rudder amidships
C. reverse starboard engine, apply right rudder
D. revers starboard engine, rudder amidships
[单项选择]A survival craft being used to pick up a person who has fallen overboard from a ship should approach the person（）.
A. at a high rate of speed
B. under oars
C. against the wind
D. with the wind
[单项选择]（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
A. Gain Control
B. Brilliant Control
C. Anti-clutter Sea Control
D. Sweep Intercept
[单项选择]If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）
A. A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the load
B. An electromagnetic brake will hold the load where it is suspended
C. The load will fall rapidly to the deck unless the foot brake is engaged
D. The load will slowly lower to the deck under control of the drag of the winch motor
[单项选择]Dirty oil must be （） before being used again.
A. mixed with clean oil
B. purified
C. heated
D. strained
[单项选择]Fuel injection systems meter fuel, atomize fuel, and （）.
A. create turbulence in the combustion chamber
B. aid in completing cylinder scavenging
C. inject fuel at the proper time
D. minimize fuel penetration into the cylinder
[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
