The GATE Grind

GATE 2021 MT – Question 38

Manufacturing Processes · Non-destructive testing · 2 marks · Multiple choice

Match nondestructive testing methods P–S with principles 1–4.

P. Dye penetrant test

Q. Radiography

R. Eddy current test

S. Ultrasonic inspection

1. X-ray absorption

2. Capillary action

3. Elastic-wave reflection

4. Electromagnetic induction

  1. P–4, Q–3, R–2, S–1
  2. P–2, Q–1, R–3, S–4
  3. P–2, Q–1, R–4, S–3
  4. P–3, Q–2, R–1, S–4

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (C) P–2, Q–1, R–4, S–3

Explanation

Dye penetrant uses capillary action (2), radiography X-ray absorption (1), eddy-current testing electromagnetic induction (4), and ultrasound elastic-wave reflection (3).

Hence P-2,Q-1,R-4,S-3, **C**.