Question 4025 Deck General

The correct answer is D) 144 feet. The rule of thumb for anchoring depth is to use a scope of 6, meaning the length of anchor rode (cable) should be 6 times the depth of the water. In this case, the water depth is 24 feet, so the required length of anchor rode would be 24 feet x 6 = 144 feet. The other options are incorrect because they do not account for the 6:1 scope rule. For example, 4 feet would be far too short for 24 feet of water, while 18 feet and 30 feet are also insufficient based on the 6:1 scope guideline.