Having a regular HVAC filter replacement plan can help:
A. Protect the system components
B. Double the system's airflow
C. Humidify the airflow
D. Sanitize the system components - ANSWER-A. Protect the system
components
According to ACR, the NADCA Standard, properly performed HVAC
system cleaning services should:
A. Eliminate all contamination
B. Restore the internal insulation to an "as new" condition
C. Restore the evaporator coil to its original pressure drop
D. Render the system visibly clean - ANSWER-C. Restore the evaporator
coil to its original pressure drop
Which of the following creates the greatest restriction of airflow?
A. A dirty fan motor
B. A dirty Plenum
C. A dirty Coil
,D. A dirty return duct - ANSWER-C. A dirty coil
According to ACR, The NADCA Standard, proper cleaning and
maintenance of an HVAC system:
A. Eliminates odors
B. Adds to the life expectancy of a system
C. Reduces noice pollution
D. Adds to the value of the HVAC system - ANSWER-B. Adds to the life
expectancy of a system
During a commercial site survey, an ASCS should do which of the
following to determine client expectations?
A. Interview the client's employees
B. Ask the client a series of specific questions prior to inspections
C. Perform the inspection without interaction with the client
D. Consult an Indoor Environment Professions (IEP) to determine IAQ -
ANSWER-B. Ask the client a series of specific questions prior to
inspections
Dirt streaks around supply diffusers that are NOT cause by a dirty
ventilation system are MOST likely cause by:
A. Slow discharge velocities
B. Elevated relative humidity
C. Dirty room air at the diffuser
, D. Thermal stratification around the diffuser - ANSWER-C. Dirty room
air at the diffuser
According to ACR, The NADCA Standard, which of the following is the
PRIMARY purpose of a written work plan?
A. Minimizes potential for legal action against the contractor
B. Allows a clear understanding of what work will be performed
C. Ensures compliance with current Occupational Safety and Health
Administration (OSHA) regulations
D. Documents the complete list of materials to be used on the job site -
ANSWER-B. Allows a clear understanding of what work will be
performed
A package unit contains which of the following components?
A. Compressor, evaporator coil, condenser, supply fan, and filter
B. Evaporator coil, VAV box, condenser, supply fan, exhaust fan, and
filter
C. Compressor, evaporator coil, condenser, supply fan, exhaust fan, and
filter
D. Compressor, evaporator coil, condenser, supply fan, thermostat, and
filter - ANSWER-B. Evaporator coil, VAV box, condenser, supply fan,
exhaust fan, and filter
The most common types of fuel consumed in modern residential HVAC
systems are:
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