NADCA NADCA-ASCS Online Practice Questions and Exam Preparation

NADCA NADCA-ASCS Online Questions & Answers

• Question 41:

  A portable self-contained blower assembly equipped with HEPA filtration and designed to recirculate a defined volume of air is

  A. a negative air machine
  B. an air scrubber.
  C. a fan col.
  D. an Air Handling Unit (AHU).
  B. an air scrubber.

• Question 42:

  If a condensate pan is full of water, what should the ASCS check FIRST?

  A. Coil leakage
  B. Pan slope
  C. Plenum pressure
  D. Drain line
  D. Drain line

• Question 43:

  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.
  D. render the system visibly clean.

• Question 44:

  During cleaning, vacuum collection equipment shall be used

  A. continuously.
  B. on the return only.
  C. on the supply only.
  D. when the building is occupied.
  A. continuously.

• Question 45:

  The PRIMARY purpose of using a vacuum collection system during cleaning is to

  A. create negative pressure within the building
  B. maintain control of debris within the HVAC system,
  C. create a vacuum in the work area,
  D. maintain positive pressure within the work area
  B. maintain control of debris within the HVAC system,

• Question 46:

  What is the specific EPA registration required to apply antimicrobials in a ventilation system?

  A. Registered for sanitizing
  B. Registered for hard surface applications
  C. Registered for disinfectant
  D. Registered for use in HVAC systems
  D. Registered for use in HVAC systems

• Question 47:

  Which standard recommends to keep a list of HVAC systems and their location?

  A. ANSI/ASHRAE/ACCA 180-2018
  B. ACR, The NADCA Standard
  C. ANSI/SMACNA 006-2006
  D. NAIMA AH124
  A. ANSI/ASHRAE/ACCA 180-2018

• Question 48:

  An HVAC system can cause Building Related Illness (BRI) if:

  A. contaminants in the system affect building occupants.
  B. occupants complain of poor airflow.
  C. excess temperatures make occupants irritable.
  D. odors travel through the duct system.
  A. contaminants in the system affect building occupants.

• Question 49:

  Unless otherwise specified, the goal of HVAC system cleaning is to restore the system to what minimum level of cleanliness?

  A. The system is visibly clean
  B. The system is tree of all adhered substances.
  C. The weight of contaminants is more than .7 mg per 100 sq. cm.
  D. The system passes the White Glove Test.
  B. The system is tree of all adhered substances.

• Question 50:

  Service openings shall NOT be made in what type of duct?

  A. Duct board
  B. Fibrous glass
  C. Metal
  D. Flexible
  D. Flexible