NAFA CAFS Exam with precise detailed || || || || || ||
answers
What are the 3 types of media used in contaminate control - Correct answer
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✔Active carbon, chemically treated carbon, potassium permanganate
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What is residence time? - Correct answer ✔the time it takes air to cross a
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distance equal to the thickness of the filter without accounting for the
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resistance of the media through which it travels
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What are the variations of the contamination control principle - Correct answer
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✔clean the air required by the process, blanket the product with cleaned air,
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offer enough air flow to move contaminated air away from the product
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What is removal efficiency - Correct answer ✔The fraction of the contaminate
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that once in contact with the media is removed by either physical or chemical
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means
What is Capacity - Correct answer ✔The amount the media is capable of
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removing - this determines the life of the filter
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What are two types of filter options - Correct answer ✔partial bypass, total
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retention
,What is the ASHRAE standard 62.1/62.2 - Correct answer ✔Ventilation for
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acceptable indoor air quality to specific minimum ventilation rates IAQ which
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will be acceptable to humans and are intended to avoid adverse health effects
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How many classifications of air is there? - Correct answer ✔4
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What are the IAQ testing applications - Correct answer ✔Particulate
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contaminants, Gas phase, systems integrity, comfort parameters || || || || || ||
What are the control strategies - Correct answer ✔Filtration, source removal,
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Dilution
Min demonstrated overspray filter eff must be at least - Correct answer ✔98%
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What is the min eff for a Super ULPA - Correct answer ✔99.9999% on MPPS
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What are the factors affecting ESP design and efficiency - Correct answer
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✔partical size, velocity through filter, voltage on ionizer and collector, collector
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plate spacing, collector plate loading, ionizer spacing and ozone
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What are the types of Microorganisms - Correct answer ✔Virus, Bacteria, Fungi
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A baghouse is composed of - Correct answer ✔house, hoppers, tubesheet and
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plenum
, A typical oil mist electrostatic presipitator has what sections (inlet to outlet) -
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Correct answer ✔Baffle, ionizer, collecting, fan and optional after filter
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PCO has how many types of reactor configurations - Correct answer ✔4
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In the filter industry, a manometer is used to measure what? - Correct answer
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✔Pressure drop across the filter || || || ||
Airflow through a booth must be? - Correct answer ✔high enough to keep the
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concentration of VOC vapor below 25% of its lowest explosive limit || || || || || || || || || ||
ULPA stands for? - Correct answer ✔Ultimate low penetration Air Filter
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Name the components of a HEPA filter - Correct answer ✔Media, separators,
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filter pack, sealant, framing, gasketing
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What size particles behave like a gas, have negligible settling rates and are
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affected by Brownian Motion - Correct answer ✔Particals less than .1 microns
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A 2 stage air cleaner utilizes what 2 things? - Correct answer ✔An Ionizer
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section, a collector section || || ||
Name the types of HEPA separator styles - Correct answer ✔'aluminum and
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mini pleat ||
answers
What are the 3 types of media used in contaminate control - Correct answer
|| || || || || || || || || || || || || ||
✔Active carbon, chemically treated carbon, potassium permanganate
|| || || || || ||
What is residence time? - Correct answer ✔the time it takes air to cross a
|| || || || || || || || || || || || || || ||
distance equal to the thickness of the filter without accounting for the
|| || || || || || || || || || || ||
resistance of the media through which it travels
|| || || || || || ||
What are the variations of the contamination control principle - Correct answer
|| || || || || || || || || || || ||
✔clean the air required by the process, blanket the product with cleaned air,
|| || || || || || || || || || || || ||
offer enough air flow to move contaminated air away from the product
|| || || || || || || || || || ||
What is removal efficiency - Correct answer ✔The fraction of the contaminate
|| || || || || || || || || || || ||
that once in contact with the media is removed by either physical or chemical
|| || || || || || || || || || || || || ||
means
What is Capacity - Correct answer ✔The amount the media is capable of
|| || || || || || || || || || || || ||
removing - this determines the life of the filter
|| || || || || || || ||
What are two types of filter options - Correct answer ✔partial bypass, total
|| || || || || || || || || || || || ||
retention
,What is the ASHRAE standard 62.1/62.2 - Correct answer ✔Ventilation for
|| || || || || || || || || || ||
acceptable indoor air quality to specific minimum ventilation rates IAQ which
|| || || || || || || || || || ||
will be acceptable to humans and are intended to avoid adverse health effects
|| || || || || || || || || || || ||
How many classifications of air is there? - Correct answer ✔4
|| || || || || || || || || ||
What are the IAQ testing applications - Correct answer ✔Particulate
|| || || || || || || || || ||
contaminants, Gas phase, systems integrity, comfort parameters || || || || || ||
What are the control strategies - Correct answer ✔Filtration, source removal,
|| || || || || || || || || || ||
Dilution
Min demonstrated overspray filter eff must be at least - Correct answer ✔98%
|| || || || || || || || || || || ||
What is the min eff for a Super ULPA - Correct answer ✔99.9999% on MPPS
|| || || || || || || || || || || || || ||
What are the factors affecting ESP design and efficiency - Correct answer
|| || || || || || || || || || || ||
✔partical size, velocity through filter, voltage on ionizer and collector, collector
|| || || || || || || || || || ||
plate spacing, collector plate loading, ionizer spacing and ozone
|| || || || || || || ||
What are the types of Microorganisms - Correct answer ✔Virus, Bacteria, Fungi
|| || || || || || || || || || ||
A baghouse is composed of - Correct answer ✔house, hoppers, tubesheet and
|| || || || || || || || || || || ||
plenum
, A typical oil mist electrostatic presipitator has what sections (inlet to outlet) -
|| || || || || || || || || || || || ||
Correct answer ✔Baffle, ionizer, collecting, fan and optional after filter
|| || || || || || || || ||
PCO has how many types of reactor configurations - Correct answer ✔4
|| || || || || || || || || || ||
In the filter industry, a manometer is used to measure what? - Correct answer
|| || || || || || || || || || || || || ||
✔Pressure drop across the filter || || || ||
Airflow through a booth must be? - Correct answer ✔high enough to keep the
|| || || || || || || || || || || || || ||
concentration of VOC vapor below 25% of its lowest explosive limit || || || || || || || || || ||
ULPA stands for? - Correct answer ✔Ultimate low penetration Air Filter
|| || || || || || || || || ||
Name the components of a HEPA filter - Correct answer ✔Media, separators,
|| || || || || || || || || || || ||
filter pack, sealant, framing, gasketing
|| || || ||
What size particles behave like a gas, have negligible settling rates and are
|| || || || || || || || || || || || ||
affected by Brownian Motion - Correct answer ✔Particals less than .1 microns
|| || || || || || || || || || ||
A 2 stage air cleaner utilizes what 2 things? - Correct answer ✔An Ionizer
|| || || || || || || || || || || || || ||
section, a collector section || || ||
Name the types of HEPA separator styles - Correct answer ✔'aluminum and
|| || || || || || || || || || || ||
mini pleat ||
