NAFA CAFS ACTUAL COMPREHENSIVE PAPER 2026 QUESTIONS WITH ANSWERS GRADED A+

NAFA CAFS ACTUAL COMPREHENSIVE
PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+

⩥ A micron is approximately ___________ of an inch. Answer:
1/25,400".


NAFA Guide to Air Filtration, 5th ed. 2014, page 1.2


⩥ Particle counters used to use tungsten light, and were limited to
measuring particle sizes down to 0.3 microns. Newer units, using
___________ as a source of light, have the capability of counting
particles smaller than 0.1 micron. Answer: Lasers.


NAFA Guide to Air Filtration, 5th ed. 2014, page 1.5


⩥ If you have a 20x24x12 filter, with 48sq. ft. of media, placed in an
airstream of 2000cfm, what would your velocity(fpm) be? Answer:
41.66fpm.


V(fpm)=Q(cfm)/A(Sq. ft. of media)


NAFA Guide to Air Filtration, 5th ed. 2014, page 2.1

, ⩥ Electronic Air Cleaners are externally powered devices. True or false?
Answer: True.


NAFA Guide to Air Filtration, 5th ed. 2014, page 2.3


⩥ The thicker the filter media and the closer the orientation of fibers, the
________ the possibility of collision by a fiber. Answer: Greater.


NAFA Guide to Air Filtration, 5th ed. 2014, page 2.4


⩥ Impingement filters are frequently treated with adhesives that coat the
fibers and create a bond between the particle and the fiber. True or false?
Answer: True.


NAFA Guide to Air Filtration, 5th ed. 2014, page 2.5


⩥ A dipole moment is when there is a ________ _____________ of
electrons at ____ _______ or _____ of a molecule than there is at
____________. Answer: Greater concentration.
One point or end.
Another.


NAFA Guide to Air Filtration, 5th ed. 2014, page 2.6