What is/are the advantage(s)of cranes over conventional cargo booms().
During which condition should the operator of a pedestal crane shutdown operations?()
On a ship’s crane,the load chart relates the allowable load to the combination of the boom length and().
0n cargo booms,preventers are().
The boom indicator tells the operator at what angle the boom is compared to the().
A tackle by which the outer end of a boom is raised and lowered is the topping().
How should you signal the crane operator to raise the boom and lower the load?().
How should you signal the crane operator to lower the boom and raise the load?().
When a cargo boom or crane is rated at varying capacities,there will be a table at the controls which relates safe working load to().
Stress on the topping lift of a swinging boom can be reduced by().
For a given weight of cargo,the stress on the heel block of a cargo boom().
The load chart of a crane enables the operator to combine the load radius with boom length to determine the().
The pivot pin at the base of a sheath-screw boom davit must be().
How should you signal the crane operator to raise the boom?().
What is meant by the term“luffing the boom”of a crane().
What is the purpose of the equalizing beam aboard a crane vessel().
The fitting that allows a boom to move freely both vertically and laterally is called the ().
0n a vessel,multipiying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)().
For any given pedestal crane,when the boom is lengthened,the lifting capacity is().
The boom indicator on a crane will indicate the().
On a ship crane,the load chart relates the allowable load to the combination of boom length and().