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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
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更多 “单选题Tugs sometimes shackle a length of chain in the towline in order to（）.A take the wear should the towline drag bottomB assure that if the towline is overstressed it will part close to the bridleC prevent the towline from whipping should it partD put spring in the towline” 相关考题
考题
Coral atolls，or a chain of islands at right angles to the radar beam，may show as a long line rather than as individual targets due to ______.A.the effects of beam widthB.limitations on range resolutionC.the pulse length of the radarD.the multiple-target resolution factor
考题
In towing，chocks are used to ______.A.protect the towline from chafingB.secure the end of the towline on the tugC.stop off the towline while retrieving itD.absorb shock loading on the towline
考题
You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun's chair．The proper way to do this is to ride down the stay on a riding shackle ______．A.with the pin of the shackle riding on the stayB.with the pin of the shackle through the chair's bridle eyeC.with a hook attaching the chair to the riding shackleD.connected to a second shackle on the chair
考题
The length of chain between the anchor and the end of the pendant line is called the ______．A.Pigtail chainB.Thrash chainC.Crown chainD.Wear chain
考题
A tow astern is veering from side to side on its towline．The best way of controlling the action is to ______．A.Trim the tow by the bowB.Trim the tow by the sternC.List the tow to windwardD.Adjust the length of the towing bridle
考题
A bridle for an ocean tow consists of ______.A.two chains of equal lengthB.a single nylon pendant rove through a heavy ring free to move on the pendantC.two long legs of wire rope shackled to a fishplateD.a single length of heavy chain with both ends secured on deck to welded pad eyes
考题
How is the size of chain determined?______.A.Length of link in inchesB.Diameter of metal in link in inches or centimetersC.Links per fathomD.Weight of stud cable in pounds
考题
单选题What is the most important difference between the bow type anchor shackle and the D-type anchor shackle? （）A
The bow type shackle provides a superior connectionB
The D-type shackle is weaker than the bow typeC
The bow type shackle is weaker than the D-typeD
The D-type shackle provides an inferior connection
考题
单选题When anchoring,it is a common rule of thumb to use a length of chain（）.A
five to seven times the depth of waterB
seven to ten times the depth of waterC
twice the depth of waterD
twice the depth of water plus the range of tide
考题
单选题In towing，chocks are used to（）.A
protect the towline from chafingB
secure the end of the towline on the tugC
stop off the towline while retrieving itD
absorb shock loading on the towline
考题
单选题In moderate wind and current what should be the length of chain with a single anchor?（）A
5 times the depth of the water in good holding groundB
10 times the depth of the water in shallow waterC
2 times the depth of the water in poor holding groundD
8 times the depth of the water in deep water
考题
单选题A bridle for an ocean tow consists of（）.A
two chains of equal lengthB
a single nylon pendant rove through a heavy ring free to move on the pendantC
two long legs of wire rope shackled to a fishplateD
a single length of heavy chain with both ends secured on deck to welded pad eyes
考题
单选题When a deck cargo is secured with chain or wire lashings and grab (pear) links，which statement is FALSE?（）A
The amount of take-up is limited by the length of the turnbuckleB
At the grab (pear) link，the slack end of chain should be led back and secured to the chain above the linkC
The lashings should be inspected each day and any slack taken upD
The turnbuckle should be secured with a stick or lock nuts
考题
单选题A common means of connecting shots of anchor chain in the field is to use a（）.A
sprocketB
Kenter linkC
swivelD
end shackle
考题
单选题You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun’s chair.The proper way to do this is to ride down the stay on a riding shackle（）.A
with the pin of the shackle riding on the stayB
with the pin of the shackle through the chair's bridle eyeC
with a hook attaching the chair to the riding shackleD
connected to a second shackle on the chair
考题
单选题Which factor(s) might indicate that a towline should be removed from service? （）A
Visible damage to the towline，including fishhooksB
Measurements showing a decrease in diameterC
A surface condition of corrosion and discolorationD
All of the above
考题
单选题Coral atolls，or a chain of islands at right angles to the radar beam，may show as a long line rather than as individual targets due to （）.A
the effects of beam widthB
limitations on range resolutionC
the pulse length of the radarD
the multiple-target resolution factor
考题
单选题A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.A
trim the tow by the bowB
trim the tow by the sternC
list the tow to windwardD
adjust the length of the towing bridle
考题
单选题You are preparing to lubricate standing rigging on your vessel．When rigging a bosun’s chair on a stay with a shackle，（）.A
Connect the shackle to the bosun's chair with a hookB
Never allow the shackle pin to ride on the stayC
Run the gantline through the shackle and then make fast to the bosun's chairD
Tie the bitter end of the gantline to the shackle before shackling it to the bosun's chair
考题
单选题起锚，留一节在水里。（）A
Heave up the cable and leave one shackle in water.B
Weigh anchor and leave one shackle in water.C
Lower the cable and leave one shackle in water.D
Drop anchor and leave one shackle in water.
考题
单选题In bad weather，what length of chain should be used with a single anchor? （）A
3 times the depth of waterB
6 times the depth of waterC
10 times the depth of waterD
15 times the depth of water
考题
单选题What is the bow type anchor shackle primarily used for（）.A
Chain to chain connectionsB
Chain to anchor connectionsC
Kenter link to anchor connectionsD
Wire rope connections
考题
单选题It is good practice to use long towlines for ocean tows because the（）.A
wear on the towline is equalizedB
weight of the towline increases the towing forceC
dip in the towline absorbs shock loadsD
danger of overriding is reduced
考题
单选题The length of chain between the anchor and the end of the pendant line is called the（）.A
pigtail chainB
thrash chainC
crown chainD
wear chain
考题
单选题If the named port is one at which no tugs are ever obtainable，and the chartered vessel can not，by reason of her size，reach that port without the assistance of tugs，the port is（）.A
safeB
not safeC
goodD
not good
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