12th Grade Engineering Design Quizzes, Questions & Answers

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Engineering Design → Roof Truss Analysis

Strong roofs start with strong trusses — and trigonometry is at the heart of their design. In this quiz, you’ll calculate angles, rises, and side lengths in triangular roof trusses. You’ll see how...

Questions: 20 | Attempts: 10 | Last updated: Nov 11, 2025

Sample Question 1
A triangular roof truss has a 40° pitch angle. If half the base is 5 m, what is the rise (nearest tenth)?

3.2 m

3.5 m

4.1 m

4.4 m

Sample Question 2
A roof truss has two equal sides of 11 m each and a base of 14 m. What is the peak angle (nearest degree)?

43°

59°

68°

78°

Sample Question 3
Each side beam is 8 m long and the peak angle is 60°. What is the base length?

8 m

12 m

16 m

4 m