Question 315 Deck General

The correct answer is D) All of the above. Explanation: 1. A slew drive system provides for rotation of each crane, allowing the crane to rotate and swing the boom side-to-side. 2. Each single boom is of the partial-level luffing type, meaning the boom can raise and lower to some degree, and is capable of limited rotation around a vertical axis. 3. Maintenance logs and records are required to be kept for each crane to ensure proper inspection, maintenance, and safe operation of the equipment. 4. Therefore, all three statements are true regarding the key features and requirements for twin pedestal cranes, making option D the correct answer.