Question 610 Deck General

The correct answer is B) increases as the angle to the horizontal increases. The thrust on a cargo boom with a given load on the cargo hook increases as the angle to the horizontal increases. This is because as the boom is raised, the vertical component of the tension in the boom increases, resulting in a greater thrust or load on the boom. Conversely, as the boom angle decreases, the vertical component of the tension decreases, reducing the thrust on the boom. The other options are incorrect because: A) the thrust actually increases as the angle increases, not decreases; C) the thrust is not least at 45 degrees and does not increase as the boom is raised or lowered; and D) the thrust is greatest at 90 degrees (straight up), not 45 degrees, and decreases as the boom is lowered.