How many adult life jackets are required on board a ship ________．
A. Enough for 100 percent of the persons allowed on board
B. One for each work station and industrial work site
C. Enough for 150 percent of the persons allowed on board
D. Both A & B above
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If a mooring line should part while you are tying up at a dock，you should make a temporary
A. becket bend
B. clove hitch
C. bowline
D. square knot
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 bank
B. Push the head of the tow away from，and pull the stern of the towboat into，the right hand bank
C. Pull both the head of the tow and the stern of the towboat into the right hand bank
D. Pull the head of the tow into，and push the stern of the towboat away from，the right hand bank
For the purpose of training and drills，if reasonable and practicable，rescue boats on board
A. once a week
B. once a month
C. once a year
D. twice a year
You are preparing to take another vessel in tow．Which signal indicates，Hawser is made fast
A. Firing of a green star signal
B. Firing of a red star signal
C. An orange smoke signal
D. Three white star rockets at 1-minute intervals
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