单选题 When underway in a channel, you should if safe and practicable ______
A、 stay near the middle of the channel
B、 keep to the starboard side of any vessels you meet
C、 exchange whistle signals with any other vessels in the channel
D、 keep to the side of the channel which lies to your starboard
单选题 The effectiveness of the lateral thrusters will depend upon the distance between the thruster and ship's_____
A、 gravity point
B、 pivot point
C、 flotation point
D、 amidships
单选题 The fog produced by warm moist air passing over a cold surface is called________
A、 conduction fog
B、 radiation fog
C、 frontal fog
D、 advection fog
单选题 The effectiveness of the action shall be carefully checked until the other vessel is _____
A、 finally clear and past
B、 clear and past finally
C、 past and clear finally
D、 finally past and clear
单选题 When bridge gives the order of let go anchor, the best movement of vessel at that time should be _________
A、 slightly slow astern
B、 little slow ahead
C、 stop in the water
D、 half astern
单选题 _____is a point midway between the forward and the after perpendicular.
A、 Length overall
B、 After perpendicular
C、 Amidships
D、 Extreme breadth
单选题 ______causing strong winds and rough sea northwest Bay of Biscay.
A、 Strong low pressure
B、 Strong high pressure
C、 Steep pressure gradients
D、 Steep gradients pressure
单选题 Forecastle deck is located in the ship's _____
A、 bow stem
B、 stern
C、 portside
D、 starboard side