The GATE Grind

GATE 2022 CH – Question 24

Instrumentation and Process Control · Measurement of process variables, sensors, transducers and P&ID symbols · 1 mark · Multiple choice

Choose the option that correctly pairs the given measurement devices with the quantities they measure.

S NoMeasurement DeviceS NoMeasured Quantity
IBourdon GaugeATemperature
IIOrifice Plate meterBConcentration
IIIPyrometerCPressure
IVColorimeterDFlow rate
VPirani GaugeELiquid level
  1. I-E, II-C, III-D, IV-B, V-A
  2. I-C, II-D, III-A, IV-B, V-C
  3. I-C, II-D, III-E, IV-A, V-D
  4. I-D, II-C, III-A, IV-E, V-C

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Show answer and explanation

Correct answer: (B) I-C, II-D, III-A, IV-B, V-C

Explanation

A Bourdon gauge measures pressure (C), an orifice plate meter the flow rate (D), a pyrometer the temperature (A), a colorimeter the concentration (B), and a Pirani gauge measures low pressure (vacuum), so also pressure (C).