更多"If the detergent type lubricating o"的相关试题:
[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]What type of oil is not covered in the oil pollution law?（）
A. mineral oil
B. machinery oil being transferred for shipboard use
C. crude oil unrefined
D. normal bilge oil and water
[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]The term OIL as used in the Oil Pollution Regulations means（）.
A. fuel oil
B. sludge
C. oil refuse
D. All of the above
[单项选择]In a disk-type lubricating oil purifier, （）
A. the purifier driving gears are lubricated by the reclaimed
B. oil as it leaves the bowl all dirt and sludge are automatically discharged with the cooling water
C. sealing water must never be supplied until after oil is fed to the unit
D. deterioration of the bowl ring gasket will cause the purifier to lose its water seal
[单项选择]If a used lube oil analysis indicates excessive fuel dilution, the lube oil should be （）
A. changed
B. centrifuged
C. filtered
D. settled
[单项选择]If a used lube oil analysis indicates an excessive chromate content, this means （）
A. air filtration is inadequate
B. engine coolant leaking into the lube oil
C. fuel oil is leaking into the lube oil
D. the piston rings are excessively worn
[单项选择]In a full flow type lube oil system, the bypass relief valve will lift due to （）
A. a clogged filter element
B. excessive lube oil pump discharge pressure
C. excessive lube oil flow
D. excessively hot lube oil
[单项选择]If the analysis of used lube oil indicates a high content of iron particles, this could indicate（）
A. corrosive deterioration of a bearing
B. inadequate air filtration
C. excessive ring and liner wear
D. excessive cooling of lubricating oil
[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]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]Poor quality fuel being used in a turbocharged medium-speed, diesel engine could result in （）
A. hard starting
B. excessive fuel consumption
C. loss of power
D. all of the above
[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]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]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]The （）is used to burn oil sludge.
A. clarifier
B. oil/water separator
C. incinerator
D. distiller
