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ASCS Exam Questions & Answers

Exam Code: ASCS

Exam Name: Air Systems Cleaning Specialist

Updated:

Q&As: 148

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Practice These Free Questions and Answers to Pass the NADCA Certifications Exam

Questions 1

A common contaminant in HVAC units is:

A. skin flakes.

B. pieces of filter media.

C. arsenic derivatives.

D. calcium carbonate.

Show Answer
Questions 2

An ASCS notices that the supply air plenum of a unit being cleaned has excessive mold growth. What is the common symptom an unprotected worker may experience?

A. Blurred vision

B. Anaphylactic shock

C. Allergic rhinitis

D. Chest pain

Show Answer
Questions 3

Which two factors should be considered to determine the type of air washing equipment to be used?

A. Source of power and consumption.

B. Type of debris and surface material.

C. Type of tool and pressure requirement.

D. Source of air and cubic feet per minute (CFM) output.

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Questions 4

A permit-required confined space requires A. an approved plan

B. scheduled breaks every 30 minutes

C. drink water every hour

D. shall carry a fire extinguisher

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Questions 5

An ASCS is planning to clean the ductwork in a commercial building. Which procedure is used to prevent the release of dirt into the occupied space during the cleaning?

A. Coverall office furnishings

B. Use the contact method of cleaning

C. Place the system under negative air pressure

D. Place the occupied space under negative air pressure

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