NADCA NADCA-ASCS Online Practice Questions and Exam Preparation

NADCA NADCA-ASCS Online Questions & Answers

• Question 31:

  According to ACR, The NADCA Standard, an HVAC system component is considered contaminated when:

  A. the drain pan does not operate properly.
  B. an HVAC cleanliness evaluation identifies Condition 3.
  C. the airflow from the registers is weak.
  D. settling plates left on room surfaces show evidence of microbial growth.
  D. settling plates left on room surfaces show evidence of microbial growth.

• Question 32:

  When a properly wired condensate pump fails, it will:

  A. turn off the HVAC system.
  B. allow bypass of the condensate.
  C. maintain HVAC system airflow.
  D. engage dehumidification cycle.
  A. turn off the HVAC system.

• Question 33:

  Which component is designed to provide the difference in air pressure required to distribute air throughout a system?

  A. Heating coil
  B. Centrifugal fan
  C. Cooling coil
  D. Turning vane
  B. Centrifugal fan

• Question 34:

  A mechanical means of agitation which an ASCS can use to clean ductwork is:

  A. compressed air needle gun.
  B. compressed air washing.
  C. water blasting.
  D. sand blasting.
  C. water blasting.

• Question 35:

  Before applying a coating to fibrous glass components, the ASCS should FIRST: A. prepare the sprayer to apply the coating.

  B. steam clean and dry the area to be coated.
  C. sanitize the area to be coated.
  D. determine if the surface is suitable for coating.
  D. determine if the surface is suitable for coating.

• Question 36:

  The PRIMARY purpose of HVAC systems is to:

  A. heat and humidify air.
  B. remove contaminants from the air.
  C. condition air by filtering, heating, and cooling.
  D. provide fresh air to the occupants.
  C. condition air by filtering, heating, and cooling.

• Question 37:

  Of the following, which is the MOST aggressive agitation tool available for cleaning HVAC systems?

  A. Air compressor
  B. Robot with camera
  C. Metal brush
  D. Skipper
  C. Metal brush

• Question 38:

  The ASCS notices that the internal insulation located in the plenum is damaged and delaminating. Which of the following is the appropriate course of action?

  A. Clean insulation by contact vacuuming
  B. Remove loose fibers and apply coating
  C. Remove and replace the insulation
  D. Clean insulation and apply coating
  C. Remove and replace the insulation

• Question 39:

  After performing an inspection, the inspection report should be delivered to the:

  A. company employees.
  B. employees who work in the inspected area.
  C. building maintenance personnel.
  D. agreed upon persons.
  D. agreed upon persons.

• Question 40:

  A client is noticing black particulate coming out of the diffusers and ending up on desks. During the initial inspection, the ASCS should pay close attention to the:

  A. condition of the ceiling tiles.
  B. condition of the internal duct insulation.
  C. condition of the external insulation on the return.
  D. closed cell foam insulation covering the AC line set.
  B. condition of the internal duct insulation.