To make combustion efficiency tests, a hole must be made ____.

A. in the flue pipe after the draft control
B. in the flue pipe before the draft control
C. over the fire at the observation door
D. under the draft hood


Answer: B

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If a single lightweight 8" concrete masonry unit (CMU) or block weighs 29 pounds and a supplier stacks 120 of them on a wood pallet weighing 35 pounds for delivery, what is the combined weight in pounds of the CMUs and the wood pallet?

What will be an ideal response?

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