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单选题
The trouble-free life of an engine indicates （）.
A
the period of time during which no trouble occurs to the engine
B
no trouble will occur to the engine all its life
C
trouble may occur freely to the engine
D
no matter what you do to the engine, no trouble will occur during this period
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更多 “单选题The trouble-free life of an engine indicates （）.A the period of time during which no trouble occurs to the engineB no trouble will occur to the engine all its lifeC trouble may occur freely to the engineD no matter what you do to the engine, no trouble will occur during this period” 相关考题
考题
According to the text, the speech at the end of the tex t.__________［A］demonstrates the author’s own view of life［B］shows the popular view of Jack Lindsay［C］offers the author’s opinion of Jack Lindsay［D］indicates Jack Lindsay’s change of attitude
考题
My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence ______.A.indicates the engine’s particularsB.tells the engine’s functionC.shows the engine’s typeD.refers to the engine’s information
考题
---Ring off engine! ---Ring off engine! _________________A.Finished with engine!B.Engine rung off!C.Engine stand by!D.Got it.
考题
If a used lube oil analysis indicates excessive chromate content, this meansA.air filtration is inadequateB.engine coolant is leaking into the lube oilC.fuel oil is leaking into the lube oilD.the piston rings are excessive worn
考题
Which statement about OSPF ASBR summary LSA is true？（）A、It is generated by an ASBR and indicates the reachability to an ABR located in another area.B、It is generated by ABR and indicates the reachability to an ASBR located in another AS.C、It is generated by ABR and indicates reachability to itself.D、It is generated by ABR and indicates the reachability to an ASBR located in another area.E、It is generated by ASBR and indicates the reachability to an ABR.
考题
---Stand by engine! ---Stand by engine!（）A、Engine stand by!B、Finished with engine!C、Engine by stand!D、OK.
考题
---Ring off engine! ---Ring off engine! （） A、Finished with engine!B、Engine rung off!C、Engine stand by!D、Got it.
考题
Where are the life-jackets for the duty personnel?（）A、They are in the chief officer’s cabin.B、They are in the store room.C、They are in the control room.D、They are in the engine room.
考题
单选题A decrease in the flash point of diesel engine lube oil indicates the lube oil has become （）.A
contaminated with sludgeB
contaminated with carbonC
diluted with fuel oilD
diluted with water
考题
单选题Black smoke exhausting from a diesel engine indicates（）A
proper fuel injectionB
water in the fuelC
incomplete combustionD
burning of lube oil
考题
单选题As to the bearing, of the following, which statement is not true?（）A
ff overheat is found, the engine must be stopped for inspectionB
Much heat of the crankcase door indicates that the bearing is overheatedC
If bearing clearance is too large, knocking will be heard in the crankcaseD
If bearing clearance is too large or too small, the white metal may be melted
考题
单选题In a four-stroke engine the camshaft rotates at （）.A
half the engine speedB
twice the engine speedC
the engine speedD
four times the engine speed
考题
单选题Which statement about OSPF ASBR summary LSA is true？（）A
It is generated by an ASBR and indicates the reachability to an ABR located in another area.B
It is generated by ABR and indicates the reachability to an ASBR located in another AS.C
It is generated by ABR and indicates reachability to itself.D
It is generated by ABR and indicates the reachability to an ASBR located in another area.E
It is generated by ASBR and indicates the reachability to an ABR.
考题
多选题Evaluate the following command and its output: Which two statements correctly interpret the output?（）AFREE_SPACE indicates only the space that is currently unallocated.BALLOCATED_SPACE indicates only the space currently allocated and in use.CFREE_SPACE indicates only the space that is currently allocated and available for reuse.DALLOCATED_SPACE indicates both the space currently allocated and used, and the space that is available for reuse.EFREE_SPACE indicates both the space that is currently allocated and available for reuse, and the space that is currently unallocated.
考题
单选题In conventional systems, the injection pressure（）, while it’s（）in common rail diesel engines.A
fluctuates with the engine speed to some extent, independent of the engine speedB
keeps constant at all engine speed, dependent on the engine speed to some extentC
keeps constant at all engine speed, independent of the engine speedD
is decided by the engine speed, constant at all engine speed
考题
单选题Which of the listed set of conditions indicates early fuel injection timing?（）A
Loss of engine power and high exhaust temperaturesB
Higher than normal firing pressure and low exhaust temperaturesC
High fuel consumption and high exhaust temperaturesD
Lower than normal compression pressure and high exhaust temperature
考题
单选题The quality of the fuel oil and lube oil （）, Im afraid.A
has much to do with the operation of the engine and its lifeB
have much to do with the operation of the engine and its lifeC
has much doing with the operation of the engine and its lifeD
have much doing with the operation of the engine and its life
考题
单选题Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?（）A
An increased air temperature differential between the cooler inlet and outletB
A decrease in the air pressure differential across the coolerC
Excessive condensate forming in the air boxD
A decrease in the air temperature differential between the cooler inlet and outlet
考题
单选题The successful operation of any engine or machine and （） depend on effective lubrication.A
their no trouble periodB
their freely trouble periodC
its free trouble lifeD
its trouble-free life
考题
单选题A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates（）A
combustion gas blow-byB
excessive lubricationC
properly functioning ringsD
insufficient cylinder cooling
考题
单选题A diesel engine cooling water system with a pH factor of 30 indicates a condition of （）.A
slight acidityB
slight alkalinityC
excessive alkalinityD
excessive acidity
考题
单选题If the chemical analysis of a lube oil sample taken from a diesel engine indicates an increased neutralization number, the （）.A
acidity has increasedB
viscosity has decreasedC
demulsibility has improvedD
foaming is guaranteed to occur
考题
单选题Which is false about engine trials?（）A
engine trails should be done after finishing the operation of turning the engine with the turning gear and starting the engine on air brieflyB
in the operation of engine trails, the main engine should be running in low-speedC
As to the ship equipment with twin main engine, engine trials should be done with one engine ahead and another engine astern at the same timeD
the order “engine trials” should be given by the bridge
考题
单选题In a diesel engine cooling water system, a pH of 60 indicates a/an （）.A
slightly acidic conditionB
slightly alkaline conditionC
overtreatment of waterD
neutral condition of water
考题
单选题People have just come to realize that ______.A
human attention is a scarce resourceB
city life can make people very tiredC
the city is an engine of intellectual lifeD
an urban environment is damaging to the brain
考题
单选题Where are the life-jackets for the duty personnel?（）A
They are in the chief officer’s cabin.B
They are in the store room.C
They are in the control room.D
They are in the engine room.
考题
单选题Which statement concerning an automatic towing engine is FALSE? （）A
It automatically maintains tow line tensionB
It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken inC
As tension on the hawser increases，more line is taken in by the automatic towing engineD
As tension on the hawser decreases，more line is taken in by the automatic towing engine
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