When used for short circuit protection of motor branch circuits, which of the following must be adjustable and used in conjunction with combination motor starters?

a. Motor short circuit protectors
b. Multi-motor branch circuits
c. Instantaneous trip circuit breakers
d. Circuit interrupters


c. Instantaneous trip circuit breakers

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Answer the following statement true (T) or false (F)

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A. pilaster B. girder C. anchor D. beam

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This would NOT be a normal part of PPE that a HDET would use:

a. a cooling vest for extremely hot conditions b. green patch work boots c. hearing protection for working near running machines d. eye protection when grinding

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A) Because of the density difference between steam and water B) Using steam circulating pumps C) Using external drive steam compressors D) using large diaphragm pumps

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