
Deck_2014 : Deck General - 2281/2572 |
---|
« Previous Question |
You are lifting a one-ton weight with a swinging boom. When comparing the stresses on the rig with the boom at 20_° to the horizontal to the stresses when the boom is at 60_° to the horizontal, which statement is TRUE? |
A) The angle of elevation does not change the stresses in the masthead fairlead for the topping lift. |
B) The stress on the head block is greater at 60_°. |
C) The stress on the heel block is greater at 60_°. |
D) The thrust on the boom is greater at 20_°. |
loading answer...
Comments |
---|
There are no comments for this question. |