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单选题
A towboat is pushing barges ahead at a dangerously fast speed when（）.
A
the towboat vibrates when backing down
B
the roostertail exceeds the height of the main deck
C
a strain is placed on the face wires
D
water comes over the foredeck of the lead barges
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更多 “单选题A towboat is pushing barges ahead at a dangerously fast speed when（）.A the towboat vibrates when backing downB the roostertail exceeds the height of the main deckC a strain is placed on the face wiresD water comes over the foredeck of the lead barges” 相关考题
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考题
When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect ________．A.Both towheads will tend to drift apart，and the overtaking vessel will be slowed downB.Both towheads will tend to drift together，and the overtaking vessel will be slowed downC.Both towheads will tend to drift apart，and the overtaken vessel will be slowed downD.Both towheads will tend to drift together，and the overtaken vessel will be slowed down
考题
A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of ______．A.A vessel towing by pushing aheadB.A power-driven vessel，not towingC.A barge being pushed aheadD.Either answer A or answer B
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考题
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a vessel towing by pushing aheadB
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either answer A or answer B
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单选题A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?（）A
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考题
单选题A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of barges are the（）.A
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考题
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考题
单选题When pushing ahead，wires leading from the quarters of the after outboard barges to the bow of a towboat（）.A
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考题
单选题Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.A
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The barges should be lighted as one vessel
考题
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考题
单选题The Vessel Bridge-to-Bridge Radiotelephone Act applies to which towboat?（）A
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考题
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考题
单选题When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.A
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考题
单选题A towboat has the same draft as the barges it is pushing ahead. If the distance from the stern of the towboat to the head of the tow is 260m，where is the approximate location of the pivot point of the unit?（）A
At the head of the towB
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120m from the head of the towD
180m from the head of the tow
考题
单选题A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.A
a single white light forwardB
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two towing lights in a vertical lineD
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考题
单选题When attempting an upstream landing while pushing empty barges ahead in a hard onshore wind，the approach is best made（）.A
with bow out，stern inB
with bow in，stern outC
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parallel to the dock，as far out as possible
考题
单选题A face line is used to（）.A
prevent barge movement in a lockB
secure two barges end-to-endC
secure barges to the towboatD
secure barges side-by-side
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