更多"[单选题]A chain bridle is preferable t"的相关试题:
[单选题] 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
[单选题] A common class of wire rope used for mooring is the 6x19 class. What does the 6
Represent?
A. Factor of safety
B. Number of wires per strand
C. Number of strands per wire rope
D. Number of wires in the core
[单选题] The size of wire rope is determined by the ______．
A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
[单选题] Which will cause a wire rope to fail ________．
A.Using a medium graphite grease as a lubricant
B.Operating a winch too slow
C.Using a sheave with an undersized throat
D.A sheave diameter of 24 times the wire's diameter
[单选题] A 6x19 wire rope would be ______．
A.6 inches in diameter and 19 fathoms long
B.6 inches in circumference with 19 strands
C.6 strands with 19 wires in each strand
D.19 strands with 6 wires in each strand
[单选题] A 6x12，two-inch wire rope has ______．
A.12 strands and a two-inch diameter
B.12 strands and a two-inch circumference
C.6 strands and a two-inch diameter
D.6 strands and a two-inch circumference
[单选题] 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
[单选题]The ideal rope for stoppers should satisfy the following requirements except that _____.
A. The stopper should be of synthetic fibre rope
B. The size of the stopper should be as large as possible
C. The stopper should be of low stretch material
D. The stopper should be very flexible
[单选题] A natural fiber rope can be ruined by dampness because it may ______．
A.rot
B.shrink
C.stretch
D.unlay
[单选题]Wire Splint 是 ( )。
A.清醒剂
B.止痛药
C.金属夹板
D.三角巾
[单选题]The fact that electric currentsa wire produce heat is known to all.
A.passed in
B.passed through
C.passes
D.passing through
[单选题]The chain transmission,forming the connection between___and the camshaft,is enclosed in the chain drive
A.the turning gear
B.the crankshaft
C.the connecting rod
D.the piston rod
[单选题] Deficient oxygen content inside a chain locker can be detected with ______．
A.litmus paper
B.combustible gas indicator
C.oxygen breathing apparatus
D.oxygen indicator
[单选题] A design modification of an anchor chain which prevents kinking is the ______．
A.Detachable link
B.Stud link
C.Kenter link
D.Connecting link
[单选题] The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a ______．
A.cradle
B.draft
C.harping
D.manger
[单选题] Tugs sometimes shackle a length of chain in the towline in order to ______．
A.Take the wear should the towline drag bottom
B.Assure that if the towline is overstressed it will part close to the bridle
C.Prevent the towline from whipping should it part
D.Put spring in the towline
[单选题] A single heavy wire made up for the topping lift
is called a ______．
A.Bale
B.Spanner wire
C.Bull line
D.Working guy
[单选题]First Aid Kit中的WIRE SPLINT是 。
A.胶布
B.止血贴
C.金属夹板
D.棉签
[单选题]A chain bridle is used when towing astern because it ______．
A.Is easy to connect
B.Provides an effective catenary and absorbs shock due to its weight
C.Makes rigging a swivel unnecessary
D.Prevents the tow from yawing by the drag of the chains in a seaway
