A propeller of 5~65m in diameter, having a mean pitch of 4~88m, turning at 72 rpm, at a speed of 11 knots (339~79m/min), will give （） of apparent slip.

A、0~967

B、0~033

C、0~031

D、0~969

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更多“A propeller of 5~65m in diameter, having a mean pitch of 4~88m, turning at 72 rpm, at a speed of 11 knots (339~79m/min), will give （） of apparent slip.”相关的问题

第1题

[单选题] The pitch m>ofm> m>am> m>propellerm> is m>am> mem>am>sure m>ofm> the（）.

m>Am>、m>am>ngle thm>am>t the m>propellerm> mm>am>kes with m>am> free strem>am>m m>ofm> wm>am>ter B、m>am>ngle thm>am>t the m>propellerm> mm>am>kes with the surfm>am>ce m>ofm> the wm>am>ter C、number m>ofm> feet per revolution the m>propellerm> is designed to m>am>dvm>am>nce in still wm>am>ter without slip D、positive pressure resulting from the difference m>ofm> the forces on both sides m>ofm> the moving m>propellerm> in still wm>am>ter without slip

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第2题

[单选题] While m>am> ship with twin screw is mm>am>king m>am> turn, in order to prevent overlom>am>d, the duty engineer should （）

m>Am>、reduce the fuel feeding m>ofm> mm>am>in engine m>ofm> inner m>propellerm> B、reduce the fuel feeding m>ofm> mm>am>in engine m>ofm> outer m>propellerm> C、firstly reduce the fuel m>ofm> mm>am>in engine m>ofm> inner m>propellerm>, then reduce the fuel feeding m>ofm> engine m>ofm> outer m>propellerm> D、reduce fuel feeding m>ofm> two engines m>am>t the sm>am>me time

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第3题

[单选题] Kort nozzles m>am>re instm>am>lled m>am>round the m>propellerm>s m>ofm> some vessels to（）.

m>Am>、Increm>am>se the thrust m>ofm> the m>propellerm> B、Protect the m>propellerm> from striking sm>am>wyers C、Prevent the m>propellerm> from striking bm>am>rges towed on the ship D、Prevent the m>propellerm> from touching bottom in low wm>am>ter

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第4题

[单选题] For vessels with （）, the mem>am>ning m>ofm> the order would include the combinm>am>tion m>ofm> pitch m>am>nd revolutions m>am>s indicm>am>ted in ships orders.

m>Am>、fixed pitch m>propellerm>s B、uncontrollm>am>ble pitch m>propellerm> C、constm>am>nt pitch m>propellerm>s D、vm>am>rim>am>ble pitch m>propellerm>s

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第5题

[单选题] The pitch rm>am>tio m>ofm> m>am> m>propellerm> is the mem>am>n pitch divided by （）.

m>Am>、the m>propellerm> dim>am>meter B、the m>propellerm> rm>am>dius C、the pitch m>am>ngle D、the length m>ofm> helix

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第6题

[] Sidewise force m>ofm> the m>propellerm> tends to throw m>am> vessel’s stern to the right or left，depending on rotm>am>tion. This force is cm>am>used by（）.

m>Am>、m>Am>.bm>am>ck current from the rudder B、B.grem>am>ter pressure on the right or left side m>ofm> the m>propellerm>，depending on rotm>am>tion C、C.lower pressure on the right or left side m>ofm> the m>propellerm>，depending on rotm>am>tion D、D.torque from the velocity m>am>nd m>am>ngle m>am>t which the surrounding wm>am>ter impinges upon the m>propellerm> blm>am>des

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第7题

[单选题] Relem>am>sing oil from the sem>am> m>am>nchor m>ofm> m>am> lifebom>am>t mm>am>y（）.

m>Am>、keep the m>propellerm> from being fouled B、increm>am>se m>propellerm> speed C、help cm>am>lm the wm>am>ves in the vicinity m>ofm> the crm>am>ft D、increm>am>se the holding power m>ofm> the sem>am> m>am>nchor