Which of the following filters would be appropriate for a large industrial air handler?
A) A large fiberglass roll filter B) A 16" × 20" × 1" panel filter
C) An electronic air cleaner D) A washable hogs-hair filter
A
You might also like to view...
The parallel circuit is used to increase the circuit ____.
a. current b. voltage c. resistance d. density
Answer the following statement(s) true (T) or false (F)
A. When you mix together two substances, each of 50 m3, you will always arrive at a total volume of 100 m3. B. When you mix together two substances, each of 50 m3, you will always arrive at a total volume less than 100 m3, since one molecule will always “fill in” the spaces between the other molecule. C. When you mix together two substances, each of 50 m3, you will always arrive at a total volume greater than 100 m3, since the molecules will take up more space to accommodate a different molecule. D. When you mix together two substances, each of 50 m3, the nature of the interactions between the molecules will determine whether you arrive at a total volume of 100 m3, or something greater than or less than this value. E. None of the above are true.
High school students can use their knowledge to conduct scientific research
Indicate whether the statement is true or false
In a normally operating engine, intake and exhaust valves are opened by a cam and closed by ________
A) Valve springs B) Valve guides and/or pushrods C) Lifters/tappets D) Rocker arms or cam follower