Leaking oil seals on a diesel engine turbocharger can cause（）
A . the engine to run after the fuel has been secured
B . the engine to over-speed
C . a fire
D . all of the above
相似题目
-
The oil sump, a light welded design, is mounted on the engine block from below and sealed by （）
A . O-ring
B . gasket
C . washer
D . packing
-
Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include （）
A . changing the air filter
B . recharging the system
C . changing compressor lubricant
D . renewing container vacuum
-
The term "load on top" is used on many crude oil carriers, is to provide a method for （）.
A . calculating the ullage in the cargo tanks
B . loading ballast by gravity
C . the loading of new cargo into the slop tank as a procedure to minimize pollution
D . calculating the ratio of cargo expansion in a cargo tank
-
A large oil fire on the deck of a ship can be fought most effectively with（）.
A . dry chemical
B . foam
C . high-velocity fog
D . water
-
When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）
A . Blanket the cargo spill with foam
B . Prevent the spread of fire with a foam dam
C . Apply CO
on burning fuel at its source
D . Shut off the transfer of cargo
-
The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）
A . the rotate speed fluctuation
B . the ventilation tube clogged
C . the main engine accelerate so fast
D . stormy wave
-
On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor, which are sealed each other.
A . charge air receiver
B . scavenging air belt
C . turbine
D . air cooler
-
The primary purpose of oil control rings on a diesel piston is to（）
A . provide a reservoir for cylinder lubrication
B . pump oil into the combustion space for cylinder cooling
C . prevent excessive lubricating oil consumption
D . allow hydraulic oil film formation on the cylinder
-
The film of oil between the rings and the liner is not only essential for the lubrication but also （） achieving a gas seal.
A . play a great part on
B . run a role in
C . plays an important part in
D . acts as important part at
-
Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?（）
A、Height of the machine
B、Temperature of the liquid seal
C、Gravity disc
D、Bowl diameter
-
Lubricating oil should be changed on a heavy duty diesel engine when（）.
A . it gets dark in color
B . a sample rubbed between fingers feels thin
C . it has been in use for a specified interval
D . it no longer supports combustio
-
（）any person died on board during the voyage otherwise than as a result of accident?
A . Have
B . Has
C . Has there been
D . Are there
-
In addition to lubricating, cylinder oil assists in forming a gas seal and contains （） which clean the cylinder liner.
A . additives
B . water
C . grease
D . acid solutio
-
A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the （）.
A . camshaft
B . flywheel
C . crankshaft
D . thrust shaft
-
The equipment required to remove an on-deck oil spill on a barge transfering oil must either be arried on board or（）.
A . on a tug standing by
B . available by contract with the shore facility
C . kept at the shoreside hose connection during transfer
D . kept in a protected shoreside location readily accessible
-
A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates（）
A . combustion gas blow-by
B . excessive lubrication
C . properly functioning rings
D . insufficient cylinder cooling
-
When inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of （）
A . insufficient lubrication
B . improper piston cooling
C . blow-by
D . overload operatio
-
In a purifier, the interface between the liquid seal and the oil should be positioned as close as possible to （）.
A、the outlet of oil
B、the outlet of water
C、the bowl periphery
D、the center of bowl
-
What kind of accident do most people die from on a holiday weekend according to the text?
-
Diana died on Sunday, August 31，1997, following a () crash in Paris.
-
But for a flat tire on the way, I______to die meeting on time.
A．would be
B．would have been
C．could have been
D．could be
-
Beatriz Cristina Ferraz Lopes Bastos, a 23-year-old teacher, died of ______ on Sunday at a hospital in Jan.
A．starvation
B．anorexia
C．tiresome
D．infection
-
On their own, vegetable oils do not have a strong flavor.
A．真
B．假
C．NOT GIVEN
-
You are on a tanker discharging oil．When all of th...
You are on a tanker discharging oil．When all of the oil that the main cargo pumps can handle is pumped out of a tank，the remainder is ______．
A.Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
B.Stripped to one tank and then pumped out with the main pumps
C.Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumps
D.Gravitated to the centers from the wings and pumped out with the main pumps
