更多"[单选题] ______ the visibility to redu"的相关试题:
[单选题] When towing astern，one way to reduce yawing of the tow is to ______.
A. trim the tow by the stern
B. trim the tow by the head
C. have the tow on an even keel
D. list the tow on the side it is yawing
[单选题] In restricted visibility a towed vessel must sound a fog signal when it is ______.
A. the last vessel in the tow
B. the last vessel in the tow and it is carrying a crew
C. manned，regardless of its position in the tow
D. None of the above are correct
[单选题] The term restricted visibility, when used in the Rules, refers to ______.
A. situations when you can see vessels on radar that you cannot see visually
B. visibility of less than half a mile
C. any condition where visibility is restricted
D. visibility where you cannot see shore
[单选题] You are underway in reduced visibility. You hear the fog signal of another vessel on your starboard bow. Risk of collision may exist. You should ______.
A. alter course to starboard to pass around the other vessel
B. reduce your speed to bare steerageway
C. slow your engines and let the other vessel pass ahead of you
D. alter course to port to pass the other vessel on its portside
[单选题] In restricted visibility the speed of a vessel without operational radar may be ______ enable effective avoiding action to be taken on sighting another ship.
A. too low to
B. too high to
C. too high for
D. too low for
[单选题] More exact assessment of visibility when ______ is used to determine the range of vessel or other objects in the vicinity．
A.Radar
B.Omega
C.Satellite navigator
D.DF
[单选题] When visibility is reduced to about 5 miles，we say that visibility is _______.
A. very good
B. good
C. poor
D. moderate
[单选题] On a Mercator chart，1 nautical mile is equal to ______．
A.1 minute of longitude
B.1 degree of longitude
C.1 minute of latitude
D.1 degree of latitude
[单选题] 1 nautical mile is the length of an arc of a great circle which subtends an angle of ____________ at the centre of the Earth.
A. 1 degree
B. 1 minute
C. 1 second
D. 1. 5 degree
[单选题] When visibility is restricted _______ , we can say it is restricted visibility .
A. by long distance
B. by the darkness at night
C. by a vessel in front
D. by fog or falling snow
[单选题] Visibility will not be reduced by _______.
A. fog
B. mistm
C. snow
D. cloud
[单选题][T]AB004 5 1 3
1mile等于( )。
A.1609m
B.1852m
C.0.3048m
D.63360m
[单选题] How to reduce beam width distortion?
A. Adjust centre position
B. Adjust brilliance
C. Adjust heading marker
D. Reduce gain
[单选题] The radar control used to reduce sea return at close ranges is the ______．
A.Gain control
B.Sensitivity time control
C.Fast time constant
D.Pulse length control
[单选题] How can you reduce ship’s downwind progress in deep water?
A. By lowering the anchor to about 60 fathoms
B. By lowering the anchor to about 30 fathoms
C. By lowering the anchor to about 10 fathoms
D. Not possible
[单选题] Choose one statement which is correct according to safe mooring practice.
A. Synthetic rope can be used as a stopper on wires
B. A safety helmet without chinstraps is allowed
C. have the same elongation as used ropes
D. Two or more lines leading in the same direction should always be of the same material.
[单选题]Please choose the one that is different from others in pronunciation.
A.talk
B.formal
C.wall
D.call
