更多"The propeller is pushed on to the t"的相关试题:
[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
[单项选择]When the propeller blades are integral with the hub, the propeller is called a （）.
A. built up propeller
B. solid propeller
C. controllable pitch propeller
D. suction back propeller
[单项选择]Propeller running at （） are generally efficient.
A. high speeds
B. medium speed
C. low speeds
D. the same speed with the engine
[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]A right-handed propeller will cause the survival craft to（）.
A. walk the stern to starboard in reverse
B. walk the stern to port in reverse
C. run faster than a lefe-handed propeller
D. right itself if capsized
[单项选择]The propeller consists of a （）with several blades of helicoidal form attached to it.
A. shaft
B. boss
C. wheel
D. lever
[单项选择]On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put（）.
A. full ahead
B. full astern
C. half ahead
D. slow astern
[单项选择]Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.
A. back current from the rudder
B. greater pressure on the right or left side of the propeller，depending on rotation
C. lower pressure on the right or left side of the propeller，depending on rotation
D. torque from the velocity and angle at which the surrounding water impinges upon the propeller blades
[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]A propeller, in order to operate efficiently, must rotate at a relatively （） speed.
A. high
B. low
C. fast
D. lowly
[单项选择]The force exerted by a propeller which tends to throw the stern right or left is called（）.
A. slip
B. sidewise force
C. rotational force
D. thrust
