单选题A towboat is pushing barges ahead at a dangerously fast speed when（）.Athe towboat vibrates when backing downBthe roostertail exceeds the height of the main deckCa strain is placed on the face wiresDwater comes over the foredeck of the lead barges
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
参考解析
解析：
暂无解析
相关考题：
The circular steel structure installed around the propeller of a towboat is the______．A.nozzleB.shroudC.strutD.Hood
---Slow ahead! ---Slow ahead! _______________!A.Engine ahead slow!B.Engine slow ahead!C.Ahead engine slow!D.Yes, sir
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.port and starboard stringsB.outer stringsC.drag stringsD.side strings
You are pushing a tow ahead，at high speed，near the right hand bank of a canal．The forces affecting your towboat and tow will tend to ______．A.Push both the head of the tow and the stern of the towboat away from the right hand bankB.Push the head of the tow away from，and pull the stern of the towboat into，the right hand bankC.Pull both the head of the tow and the stern of the towboat into the right hand bankD.Pull the head of the tow into，and push the stern of the towboat away from，the right hand bank
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.Parallel to the dock，as close in as possibleD.Parallel to the dock，as far out as possible
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
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
---Slow ahead! ---Slow ahead! （）! A、Engine ahead slow!B、Engine slow ahead!C、Ahead engine slow!D、Yes, sir
单选题A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of（）.Aa vessel towing by pushing aheadBa power-driven vessel，not towingCa barge being pushed aheadDeither answer A or answer B
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?（）AOneBTwoCThreeDFour
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（）.Aport and starboard stringsBouter stringsCdrag stringsDside strings
单选题The circular steel structure installed around the propeller of a towboat is the（）.AnozzleBshroudCstrutDhood
单选题When pushing ahead，wires leading from the quarters of the after outboard barges to the bow of a towboat（）.Aprevent the towboat from sliding when the rudder is movedBprevent the barges from spreading out when backing downChold the towboat securely to the bargesDprevent the sidewise movement of the face barges
单选题Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.AEach vessel should show sidelightsBEach vessel should show at least one white lightCThe barges should be lighted as separate unitsDThe barges should be lighted as one vessel
单选题When a pushing vessel and a vessel（）ahead are rigidly connected in a composite unit they shall be regarded as a power-driven vessel.Ais pushedBbeing pushedCwas pushedDbe pushed
单选题The Vessel Bridge-to-Bridge Radiotelephone Act applies to which towboat?（）AA 100 GT towboat，24 feet in lengthBA 90-foot towboat tied to the pierCA 60-foot towboat towing by pushing aheadDA 400 GT towboat anchored
单选题---Slow ahead both engines! ---Slow ahead both engines! （）!ABoth engines slow aheadBEngine slow ahead portCEngine slow ahead starboardDEngine both ahead
单选题A tow of 9 barges is made up three abreast and three long. The towboat is faced up to the center string which is known as the（）.Amain stringBpush stringCpower stringDface string
单选题When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.ABoth towheads will tend to drift apart，and the overtaking vessel will be slowed downBBoth towheads will tend to drift together，and the overtaking vessel will be slowed downCBoth towheads will tend to drift apart，and the overtaken vessel will be slowed downDBoth towheads will tend to drift together，and the overtaken vessel will be slowed down
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?（）AAt the head of the towB75m from the head of the towC120m from the head of the towD180m from the head of the tow
单选题A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.Aa single white light forwardBtwo masthead lights in a vertical lineCtwo towing lights in a vertical lineDtwo all-round red lights where they can best be seen
单选题When attempting an upstream landing while pushing empty barges ahead in a hard onshore wind，the approach is best made（）.Awith bow out，stern inBwith bow in，stern outCparallel to the dock，as close in as possibleDparallel to the dock，as far out as possible
单选题A face line is used to（）.Aprevent barge movement in a lockBsecure two barges end-to-endCsecure barges to the towboatDsecure barges side-by-side