In the study of communication, noise is best defined as ____

In the study of communication, noise is best defined as _____.

A) people interrupting someone who is thinking
B) anything that interferes with the message being heard or understood
C) thoughts that distract the listener
D) discussing things that are off the main topic

[Ques. 2] If an emergency occurs during a rigging operation, who is allowed to give the emergency stop hand signal?

A) Only another crane operator in the vicinity.
B) Only a designated signal person.
C) Only a qualified rigger who has completed signal training.
D) Anyone on the ground who is in site of the crane operator.

[Ques. 3] Two choker hitches are recommended when lifting a load longer than _____.

A) 6 feet (2 m)
B) 8 feet (2.5 m)
C) 10 feet (3 m)
D) 12 feet (3.5 m)

[Ques. 4] A type of hand-operated winching device that should never be used for vertical overhead lifting is a _____.

A) chain hoist
B) come-along
C) block and tackle
D) ratchet lever hoist

[Ques. 5] Because of the need for increased toughness, shackles for most overhead lifting are made from _____.

A) cast steel
B) forged steel
C) drop iron
D) tempered aluminum

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In the study of communication, noise is best defined as _____.

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