GATE Sensors and Industrial Instrumentation: Temperature and analytical sensors – Previous Year Questions
11 GATE previous year questions on Temperature and analytical sensors (Sensors and Industrial Instrumentation, Instrumentation Engineering) with answers and explanations, from every paper.
- GATE 2021 IN Q17 – Which temperature sensor has an exponential input–output characteristic?
- GATE 2021 IN Q43 – A J-type thermocouple gives V =(13650+50 x) μV, with x in °C. It has reference-junction compensation as shown, amplifier gain G=20, reference…
- GATE 2022 IN Q19 – A Chromel–Alumel thermocouple has junction A at T A. An ideal voltmeter reads thermal emf E 1 between open ends B1 and B2, both at T B. Identical…
- GATE 2023 IN Q14 – Pair the quantities p–s with devices i–iv. Devices: i. Linear variable differential transformer (LVDT); ii. Thermistor; iii. Strain gauge; iv.…
- GATE 2024 IN Q14 – Match the measuring devices to their principles. Device Principle --- --- P. Optical pyrometer I. Variation in mutual inductance Q. Thermocouple II.…
- GATE 2024 IN Q21 – A linear transducer is calibrated over the ranges shown: input temperature 50–150 °C and output current 4–20 mA. Its gain is mA/°C (two decimal…
- GATE 2024 IN Q57 – The diode in the circuit shown obeys I D=I S e V D/T, where V D is in volts, T is absolute temperature in kelvin, =1.16104 K/V, and I S=10-15 A. The…
- GATE 2025 IN Q58 – The resistance of a thermistor is measured to be 2.25 kΩ at 30 °C and 1.17 kΩ at 60 °C. Its material constant β is K (rounded off to two decimal…
- GATE 2026 IN Q26 – A glass pH electrode behaves linearly with an output change of 60\ mV per unit change in pH. The measurement reference is set such that a solution of…
- GATE 2026 IN Q30 – Which of the following statements is/are correct for a thermocouple?
- GATE 2026 IN Q51 – The emitted radiant energy from a piece of metal was measured using a pyrometer. The temperature was calculated to be 1000 C, assuming a surface…