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A thrust block is designed to ______.
A.transmit the thrust of the engine to the propeller
B.transmit the thrust of the propeller to the vessel
C.absorb the shock of wave pressure at the bow
D.be placed between the engines and the foundation to absorb the vibration
参考答案
更多 “ A thrust block is designed to ______.A.transmit the thrust of the engine to the propellerB.transmit the thrust of the propeller to the vesselC.absorb the shock of wave pressure at the bowD.be placed between the engines and the foundation to absorb the vibration ” 相关考题
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首推全速向右！A.Bow stern full to port!B.Bow stern half to port!C.Bow thrust full to starboard !D.Bow thrust full to port!
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首推全速向左！A.Bow stern full to port!B.Bow thrust half to port!C.Bow thrust full to starboard !D.Bow thrust full to port!
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A thrust bearing is used with a propulsion diesel engine to ____.A.control axial movement of the crankshaftB.transmit engine thrust to the propeller shaftC.absorb vibrations in the propeller shaftingD.prevent propeller thrust from being transmitted to the hull
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Kort nozzles are installed around the propellers of some vessels to ______.A.increase the thrust of the propellerB.protect the propeller from striking sawyersC.protect the propeller from striking barges towed on the hipD.protect the propeller from touching bottom in low water
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尾推半速向右！（）A、Bow stern full to port!B、Bow stern half to port!C、Stern thrust half to starboard !D、Bow thrust full to port!
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单选题For a propeller direct driven by the engine,（）.A
the thrust pads are while metal faced on both sidesB
the thrust pads are while metal faced only on the forward sideC
the thrust pads are while metal faced only on the after sideD
intermediate shaft usually supported by a plummer block
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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
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单选题A thrust bearing is used with a propulsion diesel engine to （）.A
control axial movement of the crankshaftB
transmit engine thrust to the propeller shaftC
absorb vibrations in the propeller shaftingD
prevent propeller thrust from being transmitted to the hul
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单选题When the vessel on the full speed ahead, if full astern immediately （） the main engine start astern and fuel injection.A
after the thrust power is zeroB
after the torsion is zeroC
surpass the critical point on the water turbo phaseD
after the speed is zero
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单选题A thrust block is designed to（）.A
transmit the thrust of the engine to the propellerB
transmit the thrust of the propeller to the vesselC
absorb the shock of wave pressure at the bowD
be placed between the engines and the foundation to absorb the vibration
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单选题For a given weight of cargo，the stress on the heel block of a cargo boom（）.A
increases as the cargo closes the head while hoistingB
increases if the cargo runner is doubled upC
decreases as the boom is topped to a greater angleD
is determined by the thrust stresses on the boom
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单选题首推全速向右！（）A
Bow stern full to port!B
Bow stern half to port!C
Bow thrust full to starboard !D
Bow thrust full to port!
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单选题首推全速向左！（）A
Bow stern full to port!B
Bow thrust half to port!C
Bow thrust full to starboard !D
Bow thrust full to port!
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单选题On a large diesel engine installation, crankshaft axial alignment is maintained by the （）A
piston rod guidesB
engine thrust bearingC
crosshead bearingD
main shaft flexible coupling
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单选题The order “Bow thrust stop” means “（）”.A
Bow thrust full to pertB
Bow thrust full to starboardC
No bow thrust revolutionsD
No stern thrust revolutions
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单选题During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the（）A
piston skirtB
pinionC
crossheadD
compression rings
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单选题When used with reversing reduction gears, medium-speed diesel engines should be bolted to their foundations with fitted bolts at the drive end and clearance(loosely fitted) bolts in other locations √This is done to （）A
maintain alignment when the ship’s hull is working in heavy seasB
ensure engine vibrations correspond to the natural frequency of the hullC
permit the engine to expand away from the driven equipment as the engine heats up and expandsD
maintain engine thrust bearing clearances
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单选题首推半速向右！（）A
Bow stern full to port!B
Bow stern half to port!C
Bow thrust half to starboard !D
Bow thrust full to port!
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单选题When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by（）A
adjusting the position of the intermediate bearingB
changing the position of the main engine installationC
adjusting the center line of the propellerD
changing the position of the thrust block
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