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AZ ROC C-45 Sheet Metal Practice Questions - Arizona ROC C-45 Sheet Metal Examination Exam

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About this Exam

Prepare with the AZ ROC C-45 Sheet Metal Practice Questions - Arizona ROC C-45 Sheet Metal Examination Exam practice quiz. This question bank includes 100 questions covering duct, installed, minimum, pressure, and vent. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
According to SMACNA HVAC Duct Construction Standards, what is the minimum sheet metal thickness (gauge) required for a 36-inch wide rectangular galvanized steel duct operating at a positive static pressure of 2.0 inches water gauge (in. w.g.) without intermediate transverse reinforcement?
24 gauge (0.028 inches)
26 gauge (0.022 inches)
22 gauge (0.034 inches)
20 gauge (0.040 inches)
Question 2
In rectangular sheet metal duct fabrication, which type of transverse joint connection consists of a flat strip with folded edges slipped over the turned-up flanges of adjacent duct sections on top and bottom, combined with drive cleats on the sides?
Companion angle flange joint
Flat S-cleat joint
Standing S-cleat joint
Pocket lock joint
Question 3
What is the maximum allowable horizontal spacing for hangers supporting 24-gauge rectangular sheet metal ductwork installed in commercial HVAC systems per SMACNA and the International Mechanical Code (IMC)?
6 feet
8 feet
10 feet
12 feet
Question 4
A technician is replacing a 24-inch wide by 12-inch deep rectangular duct with an equivalent round duct. Using the standard equivalent-diameter formula De = 1.30 x (a x b)^0.625 / (a + b)^0.25, what is the approximate equivalent round duct diameter?
14 inches
16 inches
18 inches
19 inches
Question 5
When installing flexible air ducts, what is the maximum allowable sag permitted per foot of distance between support hangers according to SMACNA and IMC guidelines?
1/2 inch per foot
1 inch per foot
1/4 inch per foot
2 inches per foot

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AZ ROC C-45 Sheet Metal Practice Questions - Arizona ROC C-45 Sheet Metal Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on duct, installed, minimum, pressure, and vent. 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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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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