Two disadvantages of a self-contained breathing apparatus (SCBA) are:

What will be an ideal response?


They are bulky and increase heat stress
They have a limited air supply

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A(n) ____________________ is a type of sequence diagram you might choose to highlight significant moments in history. It is a chronological table or list of events presented in a graphical way.

Fill in the blank(s) with the appropriate word(s).

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“At 3:00 p.m. tomorrow, all plumbing will be installed” is an example of an _____.

a. objective b. allotment c. undertaking d. assignment

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Why are the copper losses in the line considerably less for a three-wire system?

What will be an ideal response?

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What can cause high condensing temperatures?

a. Dirty condenser b. Overcharge of refrigerant c. Non-condensables in the system d. All of the above

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