Question 620 Deck General

The correct answer is B) lower the boom and raise the load. The signal of an extended arm with the thumb pointing downwards and the fingers flexing in and out is the standard hand signal used to indicate that the crane operator should lower the boom and raise the load. This is in accordance with the hand signal regulations for crane operations, which are designed to provide clear and unambiguous communication between the signal person and the crane operator. The other answer choices are incorrect because they do not match the specified hand signal. For example, option A would be the signal to raise the boom and lower the load, while options C and D would be for lowering or raising the load and boom in the opposite direction.