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单选题
Suppose the rated capacity of the main engine of a ship is 10,000 KW at 100 rated rpm, then when at 80 rpm its capacity should be （）.
A
800 KW
B
5120 KW
C
6400 KW
D
4180 KW
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考题
In the navigation,_______cause the shafting over load most easilyA.stopping the main engine suddenlyB.changing the main engine running direction suddenlyC.the sailing from the shallow water area to the deep water areaD.the ship's trim too much
考题
When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be______.A.disengaging the clutch firstly, then stopping the main engineB.stopping the main engine firstly, then disengaging the clutchC.stopping the cooling water pump firstly, then stopping the main engineD.stopping the main engine and disengaging the clutch at the same time
考题
If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measures the engineer on duty should _______.A.stop main engine immediatelyB.ask the captain and the chief engineer's permission for stopping the engineC.inquire the bridge for the situation initiativelyD.stop engine and inform bridge
考题
单选题Prior to a ship’s departure from any port （） should be tested with deck officer to ensure satisfactory operation.A
fire fighting pumpB
the steering gearC
life boat engineD
the main engine
考题
单选题The thrust from the propeller to the hull of the ship is transferred by（）A
tie rodB
thrust blockC
bedplate of main engineD
frame of main engine
考题
单选题If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）A
Ⅰ + ⅡB
Ⅰ ~ ⅢC
Ⅰ ~ ⅣD
Ⅰ + Ⅱ + Ⅳ
考题
单选题While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should （）A
reduce the fuel feeding of main engine of inner propellerB
reduce the fuel feeding of main engine of outer propellerC
firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propellerD
reduce fuel feeding of two engines at the same time
考题
单选题In the navigation, cause the shafting over load most easily（）A
stopping the main engine suddenlyB
changing the main engine running direction suddenlyC
the sailing from the shallow water area to the deep water areaD
the ship’s trim too much
考题
单选题If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measuring the engineer on duty should （）A
stop main engine immediatelyB
ask the captain and the chief engineer’s permission for stopping the engineC
initiatively inquire the bridge for the situationD
stop engine and inform bridge
考题
单选题Among the main propulsion units on board the ship with the same capacity, the lightest one is（）.A
steam engineB
steam turbineC
gas turbineD
diesel engine
考题
单选题When ship is fouled, increasing the fuel injection for keeping the normal speed will cause the main engine （）A
to work as overload characteristicB
overspeedC
over mechanical load onlyD
over thermal load only
考题
单选题Suppose the rated capacity of the main engine of a ship is 10,000 KW at 100 rated rpm, then when at 80 rpm its capacity should be （）.A
800 KWB
5120 KWC
6400 KWD
4180 KW
考题
单选题Why a gearbox is needed in a ship driven by a medium-speed diesel engine?（）A
To reduce the main engine speedB
To increase the main engine speedC
To govern the main engine speedD
To fix the propeller shaft
考题
单选题The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with （）A
the main S-W pumpB
ballast pumpC
air-conditioning water pumpD
the main S-W pump or ballast pumps that have the biggest output
考题
单选题When a ship is fully loaded, it needs to prevent the main engine to be（）.While a ship is fully empty, it needs to prevent the main engine to be（）.A
overspeed；overloadB
overload；overspeedC
over mechanical load；over thermal loadD
over torque；overspeed
考题
单选题Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engine.For the former one, it aims to prevent the main engine being（）, while for the later one, it aims to prevent the main engine being（）.A
overspeed；overloadB
overload；overspeedC
over torque；overspeedD
low mechanical efficiency；overload
考题
单选题The load limitation of governor should be reduced when ship navigating at sea, the main reason is to（）A
prevent the diesel engine surgingB
prevent governor from being damaged because of swingC
reduce the probability of the crank shaft being torsional vibrated and resonatedD
prevent the main engine being overload or overspeed
考题
单选题Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.A
after torque causes line pull to exceed the rated capacity of the winchB
before the line pull reaches the rated capacity of the winchC
when the line pull reaches the breaking strength of the fallD
before the safe working load of the fall is reached
考题
单选题In motor ship, （） is often used to recover some of the heat carried in the exhaust gases from the main engine.A
an diesel oil heaterB
a waste heat boilerC
a fresh water generatorD
all the above
考题
单选题Maximum horsepower of a diesel engine is attained （）.A
when the engine RPM is pulled down by overloadB
at rated engine RPMC
at 95 % of rated engine RPMD
at 95 % of a properly adjusted governor RPM with the engine under full load
考题
单选题When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be（）A
disengaging the clutch firstly, then stopping the main engineB
stopping the main engine firstly, then disengaging the clutchC
stopping the cooling water pump firstly, then stopping the main engineD
stopping the main engine and disengaging the clutch at the same time
考题
单选题A restricted air intake to a diesel engine may result in the engine （）.A
failing to reach rated speedB
knocking under maximum loadC
hunting or surging under light loadD
overspeeding and running away
考题
单选题When a ship is entering to narrow waterway and the fuel feeding of the main engine is keeping unchanged, which of the following is the wrong conclusion?（）A
the power of main engine will be reducedB
exhaust temperature will be increasedC
the speed of the ship will be reducedD
the propulsion characteristic of propeller will keep unchanged
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 engineB
two fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engineC
engine driven transfer pumps and only used in constant speed applicationsD
the capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
考题
单选题I hereby request permission（）the ship’s main engine for routine maintenance.A
immobilizeB
to immobilizeC
immobilizationD
immobilizing
考题
单选题According to the Robinson Graph, suddenly astern maneuvering of main engine during navigating will cause（）A
rapid reduction of ship’s friction forceB
shaft system over mechanical loadC
sharp growth of the torque of diesel engineD
propeller torque change along J=0 curve
考题
单选题Prior to a ship’s departure, （） may not always be tested.A
fire fighting pumpB
the steering gearC
life boat engineD
the main engine
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