题目
The preventer guy,as used on a conventional yard and stay rig,______.
A.Is rigged at an angle of 70° to 90° from the guy it assists
B.Takes the strain imposed on the schooner guy when burtoning cargo
C.Is rigged when lifting cargo that exceeds the SWL of a single whip
D.Should take the strain if the regular guy parts
第1题
A.Let the schooner guy take most of the strain,thus transferring the load to the opposite boom
B.Leave the preventer guy slack
C.Secure them as close together as possible on deck
D.Secure them so the angle between them is 90° at the boom head
第2题
A.dump valve
B.deflector
C.separator
D.diverter
第3题
A.annular blowout preventer
B.annulus
C.accumulator
D.automatic choke
第4题
A.Actuator
B.Annulus
C.Accumulator
D.Annular preventer
第5题
Stress on the topping lift of a swinging boom can be reduced by ______.
A.rigging a back stay
B.raising the boom
C.increasing the mechanical advantage of the cargo purchase
D.taking all slack out of the preventer
第8题
Did you notice the guy _________head looked like a big potato?
A: whose
B; who
C; which
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