List three measures, other than treating the NOx generated by those processes, that can be taken to reduce the amount of NOx produced in combustion processes.
What will be an ideal response?
Switching to a fuel with a lower nitrogen content, flue gas recirculation (FGR), or the use of low NOx burners reduces the amount of NOx formed in combustion processes
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Caution must be used with changing from one filter type to another. If a technician installs a high density filter in this application, it is very likely that the air flow will be reduced because the same filter area is used with a more dense filter.
Answer the following statement true (T) or false (F)
The telescope on a builder's level most commonly magnifies an object by _____
a. 10 times (10×) b. 15 times (15×) c. 20 times (20×) d. 25 times (25×)
Which of the following is true concerning safe scaffold use?
A. Load a scaffold in excess of the maximum intended load. B. Never use shore or lean-to scaffolds. C. Workers are allowed to perform tasks on scaffold during periods of high wind or in storm conditions. D. Scaffolds can be moved in a horizontal direction while occupied by workers.
The two header joists and the two end joists form the _____
a. floor deck b. rim joist c. box frame d. perimeter unit