更多"A small light tackle with blocks of"的相关试题:
[单项选择]A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
A. snatch block
B. threefold purchase
C. handy-billy
D. chockablock
[单项选择]Separating both blocks of a tackle to prepare it for reuse is called（）.
A. chockablocking
B. fleeting
C. overhauling
D. two blocking
[单项选择]A tackle is “two blocked” when the blocks are（）.
A. equally sharing the load
B. jammed together
C. as far apart as possible
D. rove to the highest mechanical advantage
[单项选择]Wood or steel hatch covers are made（）by tarpaulins.
A. watertight
B. resistant to water
C. so safe that no water will affect the hold
D. so strong that no water will come into the hold
[单项选择]A very light breeze that causes ripples on a small area of still water is a（）.
A. cat's paw
B. hog's breath
C. williwaw
D. chinook
[单项选择]A flashing light is a light that（）.
A. flashes at regular intervals at a frequency of 120 flashes or more per minute
B. is yellow in color
C. is visible over an arc of the horizon of not less than 180°nor more than 225°
D. All of the above
[单项选择]A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.
A. engaged in underwater construction
B. under sail and power
C. a pilot vessel
D. trawling
[单项选择]A vessel showing a yellow light over a white light at night is a vessel（）.
A. engaged in piloting
B. towing astern
C. engaged in fishing
D. in distress
[单项选择]A towing light is a yellow light having the same characteristics as a(n)（）
A. special flashing light
B. anchor light
C. sternlight
D. masthead light
[单项选择]A light that has a light period shorter than its dark period is described as（）.
A. flashing
B. pulsating
C. occulting
D. alternating
[单项选择]A piece of small stuff (small line) secured to an object to prevent it from going adrift is a（）.
A. lanyard
B. keeper
C. noose
D. stopper
[单项选择]Strengthening damaged bulkheads by using wood or steel is called（）.
A. bracing
B. battening
C. blocking
D. shoring
[单项选择]红癣在Wood灯下呈现（）
A. 蓝白色
B. 亮绿色
C. 珊瑚红色
D. 黄白色
E. 绿色
[单项选择]关于Wood灯检查正确的是（）
A. 白癣无荧光
B. 黑癣暗绿荧光
C. 黄癣呈亮绿荧光
D. 红癣为红色荧光
E. 基底细胞癌呈白色荧光
[单项选择]花斑癣在Wood灯下呈现（）
A. 无色
B. 亮绿色
C. 暗绿色
D. 棕色
E. 黄白色
[单项选择]The circular steel structure installed around the propeller of a towboat is the（）.
A. nozzle
B. shroud
C. strut
D. hood
[单项选择]A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
A. main brace
B. tow span
C. jockey bar
D. None of the above
