Question 2131 Deck General

The correct answer is D) Single whip. A single whip has the least mechanical advantage compared to the other tackle arrangements listed. A single whip is a single line that runs through a single block, providing a 1:1 mechanical advantage. In contrast, the other options (twofold purchase, luff tackle, and gun tackle) all use multiple parts of line and/or blocks, resulting in a higher mechanical advantage and therefore more lifting power. The other options are incorrect because they have a greater mechanical advantage, with the twofold purchase offering the highest advantage among the choices provided.