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GATE 2025 IN – Question 22

Sensors and Industrial Instrumentation · Displacement force and pressure measurement · 1 mark · Multiple choice

Match the sensors with their most suitable applications.

Sensors:

P. Rotary Variable Differential Transformer

Q. Thermocouple

R. Ionization Gauge

S. Strain Gauge

Applications:

I. Vacuum measurement

II. Force measurement

III. Angular displacement measurement

IV. Temperature measurement

  1. P–II, Q–III, R–I, S–IV
  2. P–II, Q–IV, R–III, S–I
  3. P–III, Q–IV, R–II, S–I
  4. P–III, Q–IV, R–I, S–II

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Show answer and explanation

Correct answer: (D) P–III, Q–IV, R–I, S–II

Explanation

An RVDT senses angular displacement (P-III).

A thermocouple senses temperature (Q-IV), an ionization gauge measures high vacuum (R-I), and bonded strain gauges infer force through elastic strain (S-II).

Therefore **D**.