Technical Standards and Safety Authority (TSSA) G3 Practice Exam

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Prepare for the TSSA G3 Exam. Study with quizzes, flashcards, and multiple-choice questions. Each provides valuable hints and detailed explanations to ensure readiness for your exam!

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What is the area of a rectangular air supply opening measuring 12" x 10"?

1.0 square feet
1.2 cubic feet
100 cubic inches
120 square inches

The correct answer is: 120 square inches

To determine the area of a rectangular air supply opening, you need to multiply its length by its width. In this case, the opening measures 12 inches by 10 inches. Calculating the area involves: Area = Length x Width Area = 12 inches x 10 inches Area = 120 square inches This shows that the area of the opening is indeed 120 square inches. The choice indicating 120 square inches is the correct answer as it reflects this calculation accurately, indicating the surface area of the rectangular opening. The other options are based on misconceptions about area and volume. For instance, square feet and cubic feet involve different units of measurement—area is expressed in square units, while volume is in cubic units. The calculation of area in different square units or misapplying formulas to find volume contributes to the confusion in these options.