Seamanship Test 3 UPDATED ACTUAL
Exam Questions and CORRECT Answers
What is the weakness of a turnbuckle?
A. The threads; they can corrode and decrease the strength overall
B. Having threads that are opposite, one left-handed and one right-handed
C. The inability to inspect if for cracks and corrosion
D. Limited use on today's modern vessels - CORRECT ANSWER - A. The threads; they
can corrode and decrease the strength overall
Mechanical advantage is usually expressed as
A. a function
B. a ratio
C. a percentage
D. a theory - CORRECT ANSWER - B. a ratio
What is meant by the phrase "capsizing a block"?
A. Flipping the block through the parts to remove the twist in the parts
B. Changing the block and tackle from disadvantage to advantage
C. Reeving the blocks to a 90 degree orientation
D. Hauling up on the working end instead of pulling down - CORRECT ANSWER - A.
Flipping the block through the parts to remove the twist in the parts
Deck hardware that has been proof tested has been
A. strained to a force of twice the SWL to identify flaws in the material
B. strained until failure to determine the weakness of the material
C. heat tempered to increase the SWL of the material
D. proven to exceed SWL limitation after five years of documented use - CORRECT
ANSWER - A. strained to a force of twice the SWL to identify flaws in the material
, A single block is fixed to the head (end) of a cargo boom. This is considered to be
A. a single whip
B. a runner
C. two-to-one mechanical advantage, rigged to disadvantage
D. a single luff - CORRECT ANSWER - A. a single whip
What creates the difference between theoretical power required and actual power required?
A. Whether the block and tackle is rigged to advantage or disadvantage
B. Friction
C. The number of parts at the moving block
D. The ration of the number of sheaves in the moving block to the number in the fixed block -
CORRECT ANSWER - B. Friction
The amount that a turnbuckle can be open or lengthened is called
A. overhauled length
B. spread
C. throw
D. reach - CORRECT ANSWER - C. throw
You are using the hook shown to the right. What would be its working load limit?
DIA=diameter
DIA = 1/2"
DIA = 5/8"
DIA = 1-5/8"
A. 2.2 T
B. 1.7 T
C. 0.22 T
Exam Questions and CORRECT Answers
What is the weakness of a turnbuckle?
A. The threads; they can corrode and decrease the strength overall
B. Having threads that are opposite, one left-handed and one right-handed
C. The inability to inspect if for cracks and corrosion
D. Limited use on today's modern vessels - CORRECT ANSWER - A. The threads; they
can corrode and decrease the strength overall
Mechanical advantage is usually expressed as
A. a function
B. a ratio
C. a percentage
D. a theory - CORRECT ANSWER - B. a ratio
What is meant by the phrase "capsizing a block"?
A. Flipping the block through the parts to remove the twist in the parts
B. Changing the block and tackle from disadvantage to advantage
C. Reeving the blocks to a 90 degree orientation
D. Hauling up on the working end instead of pulling down - CORRECT ANSWER - A.
Flipping the block through the parts to remove the twist in the parts
Deck hardware that has been proof tested has been
A. strained to a force of twice the SWL to identify flaws in the material
B. strained until failure to determine the weakness of the material
C. heat tempered to increase the SWL of the material
D. proven to exceed SWL limitation after five years of documented use - CORRECT
ANSWER - A. strained to a force of twice the SWL to identify flaws in the material
, A single block is fixed to the head (end) of a cargo boom. This is considered to be
A. a single whip
B. a runner
C. two-to-one mechanical advantage, rigged to disadvantage
D. a single luff - CORRECT ANSWER - A. a single whip
What creates the difference between theoretical power required and actual power required?
A. Whether the block and tackle is rigged to advantage or disadvantage
B. Friction
C. The number of parts at the moving block
D. The ration of the number of sheaves in the moving block to the number in the fixed block -
CORRECT ANSWER - B. Friction
The amount that a turnbuckle can be open or lengthened is called
A. overhauled length
B. spread
C. throw
D. reach - CORRECT ANSWER - C. throw
You are using the hook shown to the right. What would be its working load limit?
DIA=diameter
DIA = 1/2"
DIA = 5/8"
DIA = 1-5/8"
A. 2.2 T
B. 1.7 T
C. 0.22 T
