NATE Air Distribution Installation Practice Questions - NATE Air Distribution Installation Specialty Exam - NATE Air Distribution Installation Practice Questions - NATE Air Distribution Installation Specialty Exam

Question 1

In ACCA Manual D duct design, which calculation determines the friction rate used to size a residential duct system?

Available static pressure divided by total effective length, multiplied by 100 Total external static pressure multiplied by the number of supply registers Blower CFM divided by the cross-sectional area of the trunk duct Design temperature difference multiplied by the heat-loss factor

Correct Answer:

Available static pressure divided by total effective length, multiplied by 100

Question 2

When sizing residential ducts with Manual D, the friction rate should generally fall within which range to avoid undersized or oversized ducts?

0.01 to 0.03 in. w.c. per 100 ft 0.06 to 0.18 in. w.c. per 100 ft 0.50 to 0.80 in. w.c. per 100 ft 1.0 to 2.0 in. w.c. per 100 ft

Correct Answer:

0.06 to 0.18 in. w.c. per 100 ft

Question 3

In Manual D, the total effective length (TEL) used to size a duct run is the length of which path?

The shortest supply run plus the shortest return run The average of all supply and return runs The longest combined supply-and-return run, including the equivalent lengths of its fittings Only the straight sections of the main trunk duct

Correct Answer:

The longest combined supply-and-return run, including the equivalent lengths of its fittings

Question 4

How is available static pressure (ASP) determined when designing a residential duct system per Manual D?

Multiply the blower CFM by the number of return grilles Subtract the pressure losses of components such as the coil, filter, and registers from the equipment's rated external static pressure Add the supply and return duct lengths together Divide the total external static pressure by the friction rate

Correct Answer:

Subtract the pressure losses of components such as the coil, filter, and registers from the equipment's rated external static pressure

Question 5

A typical rule of thumb for residential cooling airflow is approximately how many CFM per ton of cooling capacity?

100 CFM per ton 200 CFM per ton 400 CFM per ton 800 CFM per ton

Correct Answer:

400 CFM per ton

Exam overview

About this Exam

Prepare with the NATE Air Distribution Installation Practice Questions - NATE Air Distribution Installation Specialty Exam practice quiz. This question bank includes 100 questions covering duct, pressure, airflow, static, and manual. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NATE Air Distribution Installation Practice Questions - NATE Air Distribution Installation Specialty Exam

This practice set contains 100 questions from the matching question bank and focuses on duct, pressure, airflow, static, and manual. 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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NATE Air Distribution Installation Practice Questions - NATE Air Distribution Installation Specialty Exam

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