Question 1
Per the 2021 International Mechanical Code, metallic HVAC ducts shall be constructed as specified in which standard?
Correct Answer:
SMACNA HVAC Duct Construction Standards—Metal and Flexible
Question 2
A 12-inch by 12-inch rectangular duct carries air at 800 feet per minute. What is the airflow?
Correct Answer:
800 cubic feet per minute
Question 3
What is the aspect ratio of a 36-inch by 12-inch rectangular duct?
Correct Answer:
3:1
Question 4
In the U.S. sheet-steel gauge system used for galvanized duct, what happens as the gauge number increases?
Correct Answer:
The metal becomes thinner
Question 5
What is the circumference of a 20-inch inside-diameter round duct?
Correct Answer:
62.83 inches
Question 1
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About this Exam

Prepare with the MS Ductwork HVAC Practice Questions - Mississippi Ductwork for Heating, A C and Ventilation Contractor Examination Exam practice quiz. This question bank includes 100 questions covering duct, inch, ducts, smacna, and rectangular. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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MS Ductwork HVAC Practice Questions - Mississippi Ductwork for Heating, A C and Ventilation Contractor Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on duct, inch, ducts, smacna, and rectangular. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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