The Humboldt Current flows in which direction?（）

Set of current is ________ ．

A.its velocity in knots

B.direction from which it flows

C.estimated current

D.direction toward which it flows

All the following is true except that ______．

A.in many places a counter current flows in opposition to the main current close to the bank

B.current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind

C.as speed is reduced，the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions

D.when close to the berth in a head current，there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces

The navigational term Set of current means ______.

A.velocity of current in knots

B.direction from which the current flows

C.estimated current

D.direction toward which the current flows

FLOATING ， CAUSED BY WINDS AND CURRENT WITH A DETERMINABLE DIRECTION defines______．

A.Floating

B.Sailing

C.Running into danger

D.Drifting

For full information regarding the current circulation of the Indian Ocean，______ Sailing Direction，Current Atlas，etc．

A.watch

B.look for

C.see

D.regard

Which statement concerning current is TRUE ________．

A.Current can be determined by measuring the direction and distance between simultaneous EP and DR positions

B.The drift of the current should be averaged out on a one hour basis

C.After the current is determined，it should not be used for further plotting because it is an unknown variable

D.The distance between a simultaneous DR position and fix is equal to the drift of the current

A.Direction d = NORTH;

B.Nav.Direction d = NORTH;

C.Direction d = Direction.NORTH;

D.Nav.Direction d = Nav.Direction.NORTH;