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（）.

相似题目

• A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.

  A . directly astern and pushing the tow B . towing on a hawser C . towing alongside and parallel to the vessel it is towing D . towing on the hi

  查看最佳答案

• 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 down B . Both towheads will tend to drift together，and the overtaking vessel will be slowed down C . Both towheads will tend to drift apart，and the overtaken vessel will be slowed down D . Both towheads will tend to drift together，and the overtaken vessel will be slowed dow

  查看最佳答案

• For safety reasons，when assistance towing（）.

  A . the disabled vessel should be towed to the nearest port B . the disabled vessel should be inspected for flammable gases C . passengers should always be removed from the disabled vessel D . personnel on the disabled vessel should don PFD'

  查看最佳答案

• When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.

  A . Non-follow-up B . Rudder adjustment C . Weather adjustment D . All the above may be activated

  查看最佳答案

• Generally，you can best keep a vessel under steering control when the vessel has（）.

  A . headway B . sternway C . no way on，with engines stopped D . no way on，with engines full ahead

  查看最佳答案

• A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.

  A . the masthead lights for a towing vessel B . the lights for a vessel restricted in its ability to maneuver C . sidelights，stern light and towing light D . All of the above

  查看最佳答案

• When using Cisco Network Assistant to configure smartports， Which tow of the following roles can belong to a VLAN of the type "access" ？（）

  A . Phone+Desktop B . Desktop C . Switch D . Router E . Trunk

  查看最佳答案

• A chain bridle is used when towing astern because it（）.

  A . is easy to connect B . provides an effective catenary and absorbs shock due to its weight C . makes rigging a swivel unnecessary D . prevents the tow from yawing by the drag of the chains in a seaway

  查看最佳答案

• When towing in an open seaway，it is important to use a towing line（）.

  A . made only of wire rope，due to possible weather conditions B . that will have the tow on a crest while your vessel is in a trough C . that will have the tow on a crest while your vessel is on a crest D . with little dip to gain maximum control of the tow

  查看最佳答案

• A power-driven vessel，when towing astern，shall show（）.

  A . two towing lights in a vertical line B . a towing light in a vertical line above the sternlight C . two towing lights in addition to the sternlight D . a small white light in lieu of the sternlight

  查看最佳答案

• A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing? （）

  A . Length of the towline B . Height of the towline connection C . Longitudinal position of the towline connection D . Direction of opposing force

  查看最佳答案

• When the steering gear is in operation, you should （）.

  A . check hydraulic oil levels every hour B . check the rams for overheating C . check for excessive oil leakage from rams D . drain water from telemotor cylinders each watch

  查看最佳答案

• In securing a towing cable，consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by（）.

  A . increasing the shaft RPM prior to release B . using a pelican hook for quick release C . using preventers D . using a short chain for the lead through the stern chock

  查看最佳答案

• When steering by autopilot,how often should the steering be checked?（）

  A . 12 times on each watch B . When time allows C . At least once a watch D . No checking is necessary

  查看最佳答案

• When the helm demands a 20°right rudder movement from an electro-hydraulic steering gear, which of the listed actions will be the FIRST action to happen when this rudder position is attained?（）

  A . The six-way valve opens B . The steering service pump motor is stopped C . The follow-up gear takes the pump off stroke D . The cylinder relief valves bypass oil to the suction side the pum

  查看最佳答案

• 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

  查看最佳答案

• When towing，what is the main reason for using a chain bridle on a wire hawser（）.

  A . It makes for an easy connection B . It gives a spring effect to cushion the shock C . It eliminates the necessity of a swivel D . It does not chafe

  查看最佳答案

• When air becomes trapped in the hydraulic fluid of a steering system, the （）.

  A . rudder will respond sluggishly B . hydraulic rams will over-speed C . sight glass will show bubbles D . ram relief valves will lift

  查看最佳答案

• When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.

  A . ram relief valves bypass oil to stop rudder movement B . six-way valve shifts to the neutral flow position C . steering pump electric motor is de - energized by the transfer switch D . follow-up gear takes the hydraulic pump off stroke

  查看最佳答案

• The biggest problem encountered when towing bridle legs are too short is（）.

  A . retrieval B . adjusting tension C . excessive strain D . hookup to main towline

  查看最佳答案

• The test of a towing vessel’s steering gear control system includes each item EXCEPT（）.

  A . a test from the alternative power supply，if installed B . timing the movement of the rudder from hard over to hard over C . verification that the rudder angle indicator shows the actual position of the rudder(s) D . visual inspection of the steering linkage

  查看最佳答案

• A towing vessel is tripped when（）.

  A . it is overtaken by the tow B . it is pulled sideways by the tow C . the weight of the towing hawser causes loss of maneuverability D . the propeller is fouled by the towing hawser

  查看最佳答案