更多"In order to help protect a natural "的相关试题:
[单项选择]In order to help protect a natural fiber rope from rotting , the line must be（）.
A. dried , and stowed in a place with adequate ventilation
B. stowed in a hot , moist compartment
C. stowed on deck at all times
D. stowed in any compartment
[单项选择]A fiber rope can be ruined by dampness because it may（）.
A. rot
B. shrink
C. stretch
D. unlay
[单项选择]A natural fiber rope can be ruined by dampness because it may （）.
A. rot
B. shrink
C. stretch
D. unlay
[单项选择]A rope made of a combination of wire and fiber is known as（）.
A. independent
B. lang lay
C. preformed
D. spring lay
[单项选择]The rope which is rove from the truck to be used with a bos’n chair is called a（）.
A. gantline
B. life line
C. strop
D. whip
[单项选择]An advantage of nylon rope over manila rope is that nylon rope（）.
A. can be used in conjunction with wire or spring-lay rope
B. can be stored on decks exposed to sunlight
C. can hold a load even when a considerable amount of the yarns have been abraded
D. gives audible warning of overstress whereas manila does not
[单项选择]In order to properly remove air from the casing of a centrifugal pump when starting, the pump should have a （）.
A. positive head
B. negative suction head
C. mechanical seal
D. vent valve attached to the casing at the top of the volute
[单项选择]In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, （）
A. wide compression rings are used
B. oil rings are located above the piston
C. chromium plating is used on all piston rings
D. oil rings are located near the bottom of the piston skirt
[单项选择]In order to benefit from the use of storm oil in heavy seas，the storm oil should be spread （）.
A. around the rudder and screws
B. completely around the vessel
C. to leeward of the vessel
D. to windward of the vessel
[单项选择]When the order （） is received from the bridge, the main air stop valve in the starting air line should be shut.
A. stand-by engine
B. full ahead
C. finished with engine
D. full away
[单项选择]In order to remove the carbon deposit from the threaded recess, we can use（）
A. a driver
B. a scraper
C. a tap
D. a file
[单项选择]Stuffer-braid rope has（）.
A. a yarn core
B. no core
C. three strands
D. 12 threads
[单项选择]What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）
A. Six by seven galvanized wire rope
B. Six by twenty-four improved plow steel wire rope
C. Six by thirty-seven preformed fiber-core wire rope
D. Six by nineteen regular-lay filler wire rope
[单项选择]If kinking results while wire rope is being coiled clockwise，you should（）.
A. coil it counterclockwise
B. not coil it
C. take a turn under
D. twist out the kinks under a strain
[单项选择]In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.
A. increase fatigue life of the system
B. reduce the time to retrieve the line
C. increase the holding power
D. reduce the catenary
[单项选择]Which is normally used to hold wire rope for splicing（）.
A. Come along
B. Jigger
C. Rigger's screw
D. Sealing clamp
