1. Home
  2. NADCA
  3. ASCS

Air Systems Cleaning Specialist

Exam Details

  • Exam Code
    :ASCS
  • Exam Name
    :Air Systems Cleaning Specialist
  • Certification
    :NADCA Certifications
  • Vendor
    :NADCA
  • Total Questions
    :148 Q&As
  • Last Updated
    :Jul 02, 2025

NADCA NADCA Certifications ASCS Questions & Answers

  • Question 21:

    Which of the following represents the static pressure, for each area listed, that is MOST likely to be found in a typical HVAC system? Supply Return Outside Air Ductwork Ductwork Intake

    A. Negative Positive Negative

    B. Positive Positive Negative

    C. Positive Negative Positive

    D. Positive Negative Negative

  • Question 22:

    Changes in temperature in a constant air volume (CAV) system are made by:

    A. dampering at terminal ends.

    B. modulating the volume of air.

    C. heating or cooling the air.

    D. dampering at the fan.

  • Question 23:

    According to ACR, The NADCA Standard, prior to Type 2 Coil Cleaning, the condensate pan and drain should be:

    A. plugged to prevent leakage.

    B. verified for proper drainage.

    C. HEPA vacuumed.

    D. compressed air washed.

  • Question 24:

    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

  • Question 25:

    Which component can be found in a fan coil unit?

    A. Condensate pan

    B. Humidifier

    C. Turning vane

    D. Diffuser

  • Question 26:

    The cooling coil condenses moisture from the air stream providing:

    A. humidification,

    B. dehumidification

    C. stratification

    D. destratification

  • Question 27:

    The evaporator coil provides:

    A. heat

    B. dehumidification

    C. humidification

    D. reheat

  • Question 28:

    What is used to prevent dry air in an occupied space during the heating season?

    A. Dehumidifier

    B. Economizer

    C. Humidifier

    D. Air exchanger

  • Question 29:

    Of the following environments, where would HEPA filters typically be installed?

    A. Cleanrooms

    B. Paint shops

    C. Automotive shops

    D. Shopping centers

  • Question 30:

    Turning vanes are PRIMARILY designed to:

    A. direct airflow.

    B. reduce pressure.

    C. control temperature.

    D. reduce sound.

Related Exams:

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only NADCA exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your ASCS exam preparations and NADCA certification application, do not hesitate to visit our Vcedump.com to find your solutions here.