5. Physical Prototyping

Testing And Validation — Quiz

Test your understanding of testing and validation with 5 practice questions.

Practice Questions

Question 1

Which statement best distinguishes verification from validation in prototype testing?

Question 2

In a pinned–pinned steel column of length 500 mm with a rectangular cross-section 10 mm × 20 mm and Young’s modulus E = 210 GPa, what is the approximate Euler critical buckling load P_{cr}? Use I = b h^3/12 and P_{cr} = π^2 E I/L^2.

Question 3

In a thermal shock test cycling a prototype between −20 °C and 80 °C with a ramp rate of 10 °C/min and dwell time of 5 minutes at each temperature extreme, what is the duration of one complete cycle?

Question 4

Which accelerated reliability testing protocol subjects prototypes to combined extreme temperature and vibration stresses to rapidly identify design weaknesses?

Question 5

Which statement best describes the primary difference between destructive and non-destructive mechanical tests on prototypes?