Which of the following filters would be appropriate for a large industrial air handler?
A) An electronic air cleaner B) A washable hogs-hair filter
C) A large fiberglass roll filter D) A 16" × 20" × 1" panel filter
C
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Answer the following statement(s) true (T) or false (F)
1. A motor should be stopped by dynamic braking alone. 2. Dynamic braking is a complex but safe method of emergency or safety braking. 3. Dynamic braking is applied in about one-fifth the time required to set the majority of shunt brakes. 4. There are many different methods of providing dynamic braking for small production equipment. 5. Dynamic braking for an AC squirrel cage motor can be accomplished by connecting direct current to the stator winding.
Hollow metal frames are anchored to masonry walls with a metal strap or wire loop and usually ____ anchors are required on each jamb.
A. four B. three C. five D. six
OSHA is the initials for ________.
A) Occupational Safety and Health Administration B) Operators Safety Health Administration C) Ohio Safety Health Act D) None of the above
The first important chinchilla mutant variety was a white male born in 1955, but it was not a true albino because it had _____ eyes
A) blue B) red C) black D) brown