更多"It is not advisable to use nylon fo"的相关试题:
[单项选择]It is not advisable to use nylon for alongside towing because it（）.
A. stretches too much
B. is too difficult to make fast
C. parts too readily
D. is too susceptible to mildew
[单项选择]It is NOT advisable to use nylon for alongside towing because it（）.
A. stretches too much
B. is too difficult to make fast
C. parts too readily
D. is too susceptible to mildew
[单项选择]What type of stopper would you use on a nylon mooring line? （）
A. Chain
B. Nylon
C. Manila
D. Wire
[单项选择]A tow bridle is attached to the main tow hawser at the（）.
A. bight ring
B. tow hook
C. fishplate
D. swivel
[单项选择]If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.
A. change course
B. slow down
C. heave to
D. adjust tow line length
[单项选择]In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.
A. insure that the hawser leads directly aft as it passes over the stern of the towing vessel
B. increase the stability of the towing vessel by raising the hawser off the deck
C. reduce chafing of the towing hawser
D. prevent fouling of the hawser on deck gear located on the stern of the towing vessel
[单项选择]A tow that veers to the side on the end of the towline is said to（）.
A. yaw
B. surge
C. sway
D. swing
[单项选择]When it is advisable to remain on VHF channel 14 you should say（）.
A. stand by on VHF channel 14
B. come to VHF channel 14
C. VHF channel 14 is the best place for you to stay by
D. remain in channel 14 and do not change
[单项选择]I am ready（）tow line.
A. cast
B. to cast of
C. cast off
D. to cast off
[单项选择]A semisubmersible rig under tow should be ballasted down if（）.
A. motion begins to be excessive
B. water begins to break over the pontoons
C. period of roll exceeds 12 seconds
D. forward progress is halted by head wind
[单项选择]A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? （）
A. When the towing vessel enters the fog
B. When the drilling rig enters the fog
C. When the towing vessel can no longer be seen from the rig
D. Immediately
[单项选择]A towing vessel and her tow are severely restricted in their ability to change course. When making way，the towing vessel will show ONLY（）.
A. the masthead lights for a towing vessel
B. the lights for a vessel restricted in her ability to maneuver
C. sidelights，stern light，and towing light
D. All of the above
[单项选择]When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.
A. eddies under the bar
B. swift current under the bar causing loss of control
C. cross-currents pushing the tow away from the bar
D. cross-currents pushing the tow into the bar
[单项选择]It’s not advisable to cut（）the power supply.
A. out
B. off
C. down
D. away
[单项选择]When lowering manropes alongside a stage rigged over the side of a vessel，they should be allowed to trail in the water（）.
A. to easily remove the kinks that form in the lines
B. to allow the seamen on the stage to know the direction and strength of the current
C. to provide the seaman something to hold onto if he or she falls from the stage into the water
D. only for short periods of time since they will become waterlogged and be very heavy to pull up
[单项选择]A single vessel being towed alongside shall exhibit（）.
A. one all-round white light
B. sidelights and a sternlight
C. only the outboard sidelight and a sternlight
D. a masthead light，sidelights，and a sternlight
