單項選擇題The center of gravity of a freely swinging load suspended from a pedestal crane acts as if it were located at the（）.

A.counterweight
B.pedestal
C.longitudinal centerline
D.point of suspension


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1.單項選擇題Strengthening damaged bulkheads by using wood or steel is called（）.

A.bracing
B.battening
C.blocking
D.shoring

2.單項選擇題Stanchions prevent the entire deck load on a ship from being carried by the（）.

A.bulkheads
B.stringers
C.frames and beam brackets
D.deck longitudinals

3.單項選擇題Stable equilibrium for a vessel means that the metacenter is（）.

A.at a lower level than the baseline
B.on the longitudinal centerline
C.higher than the center of gravity
D.at amidships

4.單項選擇題Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure（）.

A.all lighting circuits are energized
B.all void spaces are filled
C.the correct grade of cargo has been loaded
D.the heavier grade is in the lower hold

5.單項選擇題Reinforcing frames attached to a bulkhead on a vessel are called（）.

A.side longitudinals
B.intercostals
C.stiffeners
D.brackets