Why must a negative pressure be maintained on the heat exchanger?
What will be an ideal response?
For safety. To insure combustion products do not leak out into the air stream.
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A welder cuts this plate into pieces that are 8.75” wide. How many whole pieces are cut? Disregard waste caused by the cuts.
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The two categories of administrative controls are ____________ and __________.
Fill in the blank(s) with the appropriate word(s).
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Which of the following would be true of current flow when a circuit is open?
A. high amperage and overheating B. low resistance and overheating C. current shorts directly to ground D. no current flow
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Counters are generally decoded in order to determine their count state
Indicate whether the statement is true or false
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