更多"The thrust from the propeller to th"的相关试题:
[单项选择]Where a propeller shaft passes through the hull，water is prevented from entering by means of a（）.
A. stuffing box
B. propeller boss
C. seacock
D. stop-water
[单项选择]When viewed from astern, if the propeller revolves in a clockwise direction when going ahead, it is known as （）.
A. ahead direction
B. astern direction
C. right-handed
D. left-handed
[单项选择]To prevent a wooden hull from leaking you caulk it（）.
A. after drydocking，while the hull is moist
B. after drydocking，and the hull has dried
C. afloat，where it is leaking
D. afloat，in all accessible areas
[单项选择]Inspection of a vessel’s propeller during dry-dock should include （）
A. noting the condition of the fairwater
B. inspection of the keyway
C. logging inspection results in the official deck log
D. all of above
[单项选择]If your propeller is racing in rough weather，you should（）.
A. decrease your engine speed
B. ignore it
C. increase your engine speed
D. stop your engine until the rough weather passes
[单项选择]（）of my ship’s propeller is very strong.
A. The running reflection
B. The turning effect
C. The moving speed
D. The changing sensibility
[单项选择]The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.
A. face plates
B. bottom longitudinals
C. longitudinal deck beams
D. transverse deck beams
[单项选择]If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
A. require ballast
B. be down by the head
C. sink
D. float
[单项选择]The accident has caused damage（）the ship’s hull．
A. on
B. in
C. at
D. to
[单项选择]The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.
A. stress plate
B. keel
C. rider plate
D. main beam
[单项选择]Fishing gear fouled（）propeller.
A. we
B. me
C. I
D. my
[单项选择]Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）.
A. inside micrometer
B. feeler gauge
C. adjustable trammel
D. sighting device
[单项选择]Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed （）.
A. apparent slip
B. tree slip
C. pitch
D. propulsive efficiency
[单项选择]The difference between Fixed pitch propeller (FPP) and Controllable pitch propeller (CPP) is in that（）
A. for FP, once fitted, the position of the blades can also be changed in operation
B. for CP, once fitted, the position of the blades can also be changed in operation
C. the CP type has a relatively smaller hub compared with the FP propellers
D. the FP type has a relatively larger hub compared with the CP propellers
[单项选择]Compared to a constant pitch propeller, a controllable pitch propeller（）.
A. more efficiently uses available engine power
B. operates at a lower efficiency at a fixed speed
C. produces the same torque at lower engine power
D. develops its rated power at a lower speed
