NAFA CAFS TEST BANK TESTED QUESTIONS
AND VERIFIED CORRECT ANSWERS FULL
REVIEW RESOURCE
⩥ What is residence time?
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
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
Answer: The fraction of the contaminate that once in contact with the
media is removed by either physical or chemical means
⩥ What is Capacity
Answer: The amount the media is capable of removing - this determines
the life of the filter
⩥ What are two types of filter options
,Answer: partial bypass, total retention
⩥ What is the ASHRAE standard 62.1/62.2
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?
Answer: 4
⩥ What are the IAQ testing applications
Answer: Particulate contaminants, Gas phase, systems integrity, comfort
parameters
⩥ What are the control strategies
Answer: Filtration, source removal, Dilution
⩥ Min demonstrated overspray filter eff must be at least
Answer: 98%
⩥ What is the min eff for a Super ULPA
Answer: 99.9999% on MPPS
, ⩥ What are the factors affecting ESP design and efficiency
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
Answer: Virus, Bacteria, Fungi
⩥ A baghouse is composed of
Answer: house, hoppers, tubesheet and plenum
⩥ A typical oil mist electrostatic presipitator has what sections (inlet to
outlet)
Answer: Baffle, ionizer, collecting, fan and optional after filter
⩥ PCO has how many types of reactor configurations
Answer: 4
⩥ In the filter industry, a manometer is used to measure what?
Answer: Pressure drop across the filter
⩥ Airflow through a booth must be?
AND VERIFIED CORRECT ANSWERS FULL
REVIEW RESOURCE
⩥ What is residence time?
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
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
Answer: The fraction of the contaminate that once in contact with the
media is removed by either physical or chemical means
⩥ What is Capacity
Answer: The amount the media is capable of removing - this determines
the life of the filter
⩥ What are two types of filter options
,Answer: partial bypass, total retention
⩥ What is the ASHRAE standard 62.1/62.2
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?
Answer: 4
⩥ What are the IAQ testing applications
Answer: Particulate contaminants, Gas phase, systems integrity, comfort
parameters
⩥ What are the control strategies
Answer: Filtration, source removal, Dilution
⩥ Min demonstrated overspray filter eff must be at least
Answer: 98%
⩥ What is the min eff for a Super ULPA
Answer: 99.9999% on MPPS
, ⩥ What are the factors affecting ESP design and efficiency
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
Answer: Virus, Bacteria, Fungi
⩥ A baghouse is composed of
Answer: house, hoppers, tubesheet and plenum
⩥ A typical oil mist electrostatic presipitator has what sections (inlet to
outlet)
Answer: Baffle, ionizer, collecting, fan and optional after filter
⩥ PCO has how many types of reactor configurations
Answer: 4
⩥ In the filter industry, a manometer is used to measure what?
Answer: Pressure drop across the filter
⩥ Airflow through a booth must be?
