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The signal man assisting the crane operator has his forearm vertical, forefinger pointing up, and moves his hand in a small horizontal circle. This is the signal to __________.

A. extend
B. lower
C. hoist
D. swing

Respuesta :

Answer:

The signal being given by the signalman with his forearm vertical, forefinger pointing up and moving the hand in horizontal circles is the signal to hoist.

Explanation:

  • As it is not possible to assist or instruct the operator orally on the field owing to the noise of the machines functional on the field, the signalman is given the responsibility to instruct the crane operator through specific signs.
  • The sign instructions developed to be used on the field carry specific meanings associated with operations.
fichoh

During crane operation, the the operator uses the assistance of the signal man in other to carry out a successful operation, oral communication isn't effect due to noise and thus non-verbal signs are employed. The information passed with forearm vertical, forefinger pointing up, and moves his hand in a small horizontal circle

tells the operator to hoist.

  • There are standard non-verbal signs used in crane operation, as endorsed by the center for occupational health and safety.

  • Hence, to function as a worker during crane operation, these signals must be well understood.

  • Raising or hoisting action is signaled with the forearm vertical, forefinger pointing up, and moves his hand in a small horizontal circle.

  • When an arm is extended downward, forefinger pointing down, and the hand moves in small horizontal circles, this signals lower.

Therefore, the signal mde by the signal man tells the operator to hoist.

Learn more : https://brainly.com/question/18450312

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