NADCA NADCA-ASCS Online Practice Questions and Exam Preparation

NADCA NADCA-ASCS Online Questions & Answers

• Question 121:

  According to ACR, The NADCA Standard, if the preliminary determination indicates that extensive mold growth is visible,

  A. the ASCS should recommend a building-wide evacuation.
  B. it is recommended that the cause and extent of microbial growth be determined.
  C. an air balance professional is required to diagnose the problem.
  D. an Indoor Environmental Professional (IEP) should recommend a building-wide evacuation.
  B. it is recommended that the cause and extent of microbial growth be determined.

• Question 122:

  Which component can be found in a fan coil unit?

  A. Condensate pan
  B. Humidifier
  C. Turning vane
  D. Diffuser
  A. Condensate pan

• Question 123:

  In what sequence is an HVAC system typically cleaned?

  A. Supply, air handler, return
  B. Exhaust, air handler, return, supply
  C. Return, supply, exhaust, air handler
  D. Return, air handler, supply
  B. Exhaust, air handler, return, supply

• Question 124:

  When conducting an inspection, the ASCS should:

  A. avoid cross-contamination and release of contaminants into occupied spaces.
  B. avoid contamination of instruments and observation tools.
  C. inform occupants immediately if mold is found.
  D. perform the inspection during normal business hours.
  C. inform occupants immediately if mold is found.

• Question 125:

  When more than one building classification applies to an area,

  A. the least stringent classification will apply.
  B. base the classification on square footage.
  C. the most stringent classification will apply.
  D. base the classification on the contaminants found.
  C. the most stringent classification will apply.

• Question 126:

  The ASCS has performed air duct cleaning for an owner of a vacant building. A prospective tenant contacts the ASCS directly with questions of the overall system cleanliness and suitability for continued use. The ASCS should:

  A. answer all their questions to the best of their ability.
  B. refer the prospective tenant to the HVAC contractor who maintains the system.
  C. refer the prospective tenant to consult with the building owner.
  D. answer questions pertaining to their work only.
  D. answer questions pertaining to their work only.

• Question 127:

  Contaminants in an HVAC system:

  A. are always biohazards.
  B. are always asthma-inducing.
  C. should be lab tested if Condition 1 is found.
  D. could be any substance.
  D. could be any substance.

• Question 128:

  To test whether a residential thermostat is working, the technician should:

  A. perform a thermostat calibration.
  B. turn thermostat off and observe unit response.
  C. check the voltage between the c and r/rh thermostat terminals.
  D. set thermostat to an extreme temperature and observe unit response.
  D. set thermostat to an extreme temperature and observe unit response.

• Question 129:

  To function properly, pneumatic duct cleaning tools require large amounts of:

  A. oil pressure
  B. lubricant
  C. air volume
  D. air surface
  C. air volume

• Question 130:

  Which of the following is NOT considered a mechanical means of agitating the inside of ductwork?

  A. Contact vacuuming
  B. Air whipping
  C. Vacuum collector
  D. Cable drive brush
  C. Vacuum collector