NADCA ASCS - Air Systems Cleaning Specialist Exam

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Total 148 questions

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

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

Having a regular HVAC filter replacement plan can help:

  • A. protect the system components.
  • B. double the system’ airflow.
  • C. humidify the airflow.
  • D. sanitize the system components.


Answer : A

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 noise pollution.
  • D. adds to the value of the HVAC system.


Answer : B

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 inspection
  • C. Perform the inspection without interaction with the client
  • D. Consult an Indoor Environmental Professional (IEP) to determine IAQ


Answer : B

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Total 148 questions