GATE 2022 AR — Architecture – Question 52

Building Construction, Materials, and Structural Systems · Building materials characteristics & applications · 1 mark · Multiple choice

In a direct UPV test under IS 516(Part 5/Section 1):2018, a pulse travels 600 mm in 0.18 ms. Grading: above 4.4 km/s excellent; 3.75–4.4 good; 3.0–3.75 doubtful; below 3.0 poor. What grade applies?

Excellent
Good
Doubtful
Poor

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Show answer and explanation

Correct answer: (C) Doubtful

Explanation

Velocity is 0.6 m/0.00018 s=3333.33 m/s=3.333 km/s. This is within 3.0–3.75 km/s, so the supplied grading table gives Doubtful, C. Use the table printed with the question rather than a differently labelled grading convention.

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