更多"Which knot reduces the strength of "的相关试题:
[单项选择]Which knot should be used to send a man over the side when he may have to use both hands（）.
A. Bowline
B. French bowline
C. Bowline on a bight
D. Running bowline
[单项选择]On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）
A. Clove hitch
B. Figure-eight knot
C. Fisherman's bend
D. Overhand knot
[单项选择]Which mooring line prevents sideways motion of a vessel moored to a pier（）.
A. A line led forward from the bow
B. A line led aft from the bow
C. A line led in the same direction as the keel
D. A line led at a right angle to the keel
[单项选择]Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）
A. Bow line
B. Breast line
C. Spring line
D. Stern line
[单项选择]Which mooring line has the least elasticity?（）
A. Dacron
B. Nylon
C. Esterlene
D. Polypropylene
[单项选择]The knot at the end of the heaving line used to pass the towing hawser is called a（）.
A. monkey's fist
B. ball or baseball knot
C. heaving knot
D. three strand Turk's head
[单项选择]Which line from the output of the show ip interface command indicates a layer 1 problem?（）
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down
[单项选择]On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
A. mimimum oxygen content line
B. critical displacement line
C. critical dilution line
D. upper threshold limit
[单项选择]The line which connects the points of zero magnetic dip is（）.
A. An agonic line
B. The magnetic equator
C. A magnetic meridian
D. All of the above
[单项选择]The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
A. fish trap area
B. pipeline
C. demarcation line
D. cable area
[单项选择]A motor enclosure which protects against falling liquids is classified as （）
A. waterproof
B. drip proof
C. spray tight
D. spray proof
[单项选择]Which statement is TRUE about nylon line?（）
A. Manila line will usually last longer than nylon line
B. Nylon line is excellent for use in alongside towing
C. A normal safe working load will stretch nylon line 50%
D. Nylon stoppers should be used with nylon line
[单项选择]A line on a weather chart connecting places which have the same barometric pressure is called an（）.
A. isotherm
B. isallobar
C. isobar
D. isotope
[单项选择]In order to pay out or slack a mooring line which is under strain，you should（）.
A. sluice the line
B. surge the line
C. stopper the line
D. slip the line
[单项选择] Which line contains a constructor in this class definition？（） public class Counter { // （1） int current， step； public Counter（int startValue， int stepValue） { // （2） set（startValue）； setStepValue（stepValue）； } public int get（） { return current； } // （3） public void set（int value） { current = value； } // （4） public void setStepValue（int stepValue） { step = stepValue； } // （5） }
A. Code marked with （1） is a constructor
B. Code marked with （2） is a constructor
C. Code marked with （3） is a constructor
D. Code marked with （4） is a constructor
E. Code marked with （5） is a Constructor
[单项选择]In a four stroke engine, which process lasts the longest period?（）
A. exhaust and suction process
B. suction and compression process
C. combustion and exhaust process
D. working and exhaust process
[单项选择]Which of the following statements concerning the lubrication of diesel propulsion engines used in vessels over 300 gross tons is most accurate?（）
A. Lubrication systems using engine driven lube oil pumps do not require any additional independent arrangement when such arrangements have been proven reliable
B. The use of engine driven pre-lube pumps is permitted on vessels with propulsion systems developing less than 500 shaft horsepower
C. When forced lubrication is used for propulsion engines, one independently driven stand-by pumps is to be provided in addition to the necessary pumps for normal operation
D. Lubrication systems where two oil coolers are fitted require a minimum of two temperature control devices which may be actuated by similar sensors
