What is the difference between bleeding the lines and purging the lines when using gas equipment?

What will be an ideal response?


Bleeding the lines is removing the gas from all lines so that gas will not escape from any point when
the torch is not in use. Purging the lines means removing undesirable gases from the lines prior to
using the torch.

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Hagenbeck developed an ordinary zoo with animals exhibited in rows of cages

a. True b. False Indicate whether the statement is true or false

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Trenches ____ feet or deeper must be shored or sloped back to the angle of repose.

A. 4 B. 6 C. 8 D. 10

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As temperature increases, the resistance of a good conductor will

A) decrease. B) change to become zero. C) stay the same. D) increase.

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The primary difference between a jack rafter and a cripple jack rafter is cripple jack rafters have a cut on one end exactly like common rafters

Indicate whether the statement is true or false

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