Question

What does the crane hand signal mean

(fist,thumb down : thumb down, open hand)?

(A) lower the boom
(B) lower the load
(C) raise the boom and lower the load
(D) lower the boom and raise the load

Answer 1

The crane hand signal with a fist and thumb down followed by a thumb down with an open hand means to lower the boom (A). It is crucial for construction site communication and safety.

Step-by-step explanation:

The crane hand signal that consists of a fist with the thumb pointing downward followed by a thumb pointing downward with an open hand usually means (A) lower the boom. Each hand signal is specific in order to maintain safety and clear communication on construction sites. The hand signals used for mobile and tower crane operations are standardized and crucial for preventing accidents. Always remember that proper training and certification are required for individuals giving hand signals on a job site to ensure the safety of all workers.