A.Extend arm with the thumb pointing up and flex the fingers in and out
B.Place both fists in front of the body with the thumbs pointing upward
C.With forearm vertical and forefinger pointing up,move hand in small horizond circles
D.Extend arm with the fingers closed and thumb upward
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A.Extend arm with the palm down and and hold this position rigidly
B.Place clasped hands in frontof your body
C.extend arm and move hand rapidly right and left with the plam outward
D.Place both fists in front of the body with the thumbs pointing outward
A.Place both fists in front of the body with the thumbs pointing outward
B.With both arms extended out and palms to down, move arms back and forth
C.Extend arm with the palm down and and hold this position rigidly
D.Clasp hands in front of you body
A.With both arms extended out and palms to down, move arms back and forth
B.With arm ertended downwards and forefinger pointing down,move hand in small horizontal crecles
C.Extend arm and point finger in the direction to move boom
D.Place both fists in front of the body with the thumbs pointing outward
A.Use one hand to give any miotion signal , and place the other hand motionless in front of the hand giving the motion signal
B.Extend arm with the thumb pointing up , and flex the fingers in and out for as long as the load movement is desired
C.First tap your elbow with one hand , and then proceed to use regular signals
D.First tap the top of your head with your first , and then proceed to use regular signals
A.I am underway
B.I am out of control
C.I am not making way through the water
D.I have the amout of movement forward which the ship need to be steered properly
最新試題
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
Which of the following shall not the officers in charge of the navigational watch do?（）
In the Northern hemisphere northerly winds may cause temperature（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
The dew point temperature is（）.
（）is on the panel of radar.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
A tide is called diurnal when（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.