Free NADCA-ASCS Exam Dumps Preview

Question 1

Single choice

The cooling coil condenses moisture from the air stream providing:

1. A

   humidification,

2. B

   dehumidification

3. C

   stratification

4. D

   destratification

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Correct answerB

Question 2

Single choice

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

1. A

   Negative Positive Negative

2. B

   Positive Positive Negative

3. C

   Positive Negative Positive

4. D

   Positive Negative Negative

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Correct answerC

Question 3

Single choice

Which of the following is MOST likely to contain bloodborne pathogens?

1. A

   Contaminated condensate drain line

2. B

   Sewer contaminated ductwork

3. C

   Dishwater contaminated ductwork

4. D

   Contaminated evaporator coil

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Correct answerA

Question 4

Single choice

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

1. A

   Cleanrooms

2. B

   Paint shops

3. C

   Automotive shops

4. D

   Shopping centers

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Correct answerA

Question 5

Single choice

According to ACR, The NADCA Standard, proper cleaning and maintenance of an HVAC system:

1. A

   eliminates odors.

2. B

   adds to the life expectancy of a system.

3. C

   reduces noise pollution.

4. D

   adds to the value of the HVAC system.

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Correct answerB

Question 6

Single choice

What is the equivalent MERV rating for HEPA filters?

1. A

   MERV 1-4

2. B

   MERV 5-8

3. C

   MERV 9-12

4. D

   MERV 17-20

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Correct answerD

Question 7

Single choice

It is necessary for the site safety plan to include

1. A

   technician's job description.

2. B

   Safety Data Sheet (SDS)

3. C

   work order.

4. D

   C ACR.

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Correct answerB

Question 8

Single choice

When is it appropriate to verify the effectiveness of HVAC system cleaning?

1. A

   During the cleaning process

2. B

   After the system is cleaned, and before the system is restarted

3. C

   After the system is restarted

4. D

   After the system is cleaned, but before coil cleaning is completed

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Correct answerB

Question 9

Single choice

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

1. A

   perform a thermostat calibration.

2. B

   turn thermostat off and observe unit response.

3. C

   check the voltage between the c and r/rh thermostat terminals.

4. D

   set thermostat to an extreme temperature and observe unit response.

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Correct answerD

Question 10

Single choice

What kind of ventilation is PRIMARILY used in a painting chamber?

1. A

   Dual duct

2. B

   Multi zone

3. C

   Constant volume

4. D

   Exhaust system

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Correct answerD

Question 11

Single choice

Which of the following is the MOST effective technique for cleaning an evaporator coil?

1. A

   Air wash

2. B

   Wire brush

3. C

   Wet wash

4. D

   Hand vacuum

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Correct answerC

Question 12

Single choice

When cutting into fibrous glass duct board, which hand tool is MOST effective?

1. A

   Jigsaw

2. B

   Snips

3. C

   Nibbler

4. D

   Straight knife

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Correct answerD

Question 13

Single choice

During a water damage restoration, the Institute of Inspection Cleaning and Restoration Certification (IICRC) Standard S500 states HVAC systems should

1. A

   not be cleaned

2. B

   Be operated in "fan on" mode

3. C

   not be used for dehumidification

4. D

   be used for dehumidification

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Correct answerC

Question 14

Single choice

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

1. A

   a negative air machine

2. B

   an air scrubber.

3. C

   a fan col.

4. D

   an Air Handling Unit (AHU).

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Correct answerB

Question 15

Single choice

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

1. A

   Duct board

2. B

   Fibrous glass

3. C

   Metal

4. D

   Flexible

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Correct answerD

Question 16

Single choice

What type of supply fan transfers large volumes of air with a minimal wheel diameter?

1. A

   Backward-inclined fan

2. B

   Forward-curved fan

3. C

   Axial fan

4. D

   Radial fan

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Correct answerB

Question 17

Single choice

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

1. A

   Contact vacuuming

2. B

   Air whipping

3. C

   Vacuum collector

4. D

   Cable drive brush

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Correct answerC

Question 18

Single choice

What is the PRIMARY source for the layout of a building's HVAC systems?

1. A

   Structural plans

2. B

   Mechanical plans

3. C

   Electrical plans

4. D

   Site plans

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Correct answerB

Question 19

Single choice

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

1. A

   Coil leakage

2. B

   Pan slope

3. C

   Plenum pressure

4. D

   Drain line

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Correct answerD

Question 20

Single choice

An ASCS is inspecting the HEPA filter in a vacuum collection device and notices the aluminum fins are bent.

Which of the following should the ASCS inspect next?

1. A

   The color of the fitter

2. B

   The odors emanating from the filter

3. C

   The HEPA filtration media

4. D

   The gaskets of the vacuum collection device

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Correct answerC

Question 21

Single choice

Which ceiling type is easiest to remove for ductwork access?

1. A

   Tin

2. B

   Suspended

3. C

   Spline

4. D

   Sheet Rock

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Correct answerB

Question 22

Single choice

What resource is BEST to refer to when determining if all project work has been completed?

1. A

   ACR, The NADCA Standard

2. B

   Scope of work

3. C

   Hazard assessment

4. D

   Inspection report

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Correct answerD

Question 23

Single choice

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

1. A

   the drain pan does not operate properly.

2. B

   an HVAC cleanliness evaluation identifies Condition 3.

3. C

   the airflow from the registers is weak.

4. D

   settling plates left on room surfaces show evidence of microbial growth.

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Correct answerD