GATE Measurements: Errors and uncertainty – Previous Year Questions
10 GATE previous year questions on Errors and uncertainty (Measurements, Instrumentation Engineering) with answers and explanations, from every paper.
- GATE 2021 IN Q15 – In an AC mains, measured rms voltage is 100 V ±1%, rms current 1 A ±1%, and power 50 W ±2%, with errors relative to readings. The percentage limiting…
- GATE 2021 IN Q30 – A piezoresistive pressure sensor has sensitivity 1 (mV/V)/kPa and DC excitation 10 V. Its output is read using a 3½-digit digital multimeter on the…
- GATE 2022 IN Q20 – The resistance of a pure copper wire of length 10 cm and diameter 1 mm is to be measured. The most suitable method from amongst the choices given…
- GATE 2023 IN Q53 – Five measurements are made using a weighing machine, and the readings are 80 kg, 79 kg, 81 kg, 79 kg and 81 kg. The sample standard deviation of the…
- GATE 2023 IN Q64 – A 1.999 V true-RMS 312-digit multimeter has accuracy ±0.1% of reading ±2 digits. It measures 100 A RMS line current through a 100:5 Class-1 current…
- GATE 2024 IN Q28 – A 20 kΩ resistor is measured six consecutive times using an LCR meter. The first five readings are 19, 18, 23, 21, and 17 kΩ. If the mean equals the…
- GATE 2024 IN Q37 – The measured values from a flow instrument, whose range is between 0 and 2 flow units, are shown in the histogram. The systematic error (bias) and the…
- GATE 2024 IN Q50 – A 20-psig pressure gauge gives the following readings. Its regression line is y=0.04x+10.32. The coefficient of determination R2 is (three decimal…
- GATE 2025 IN Q23 – A 312-digit digital voltmeter has specified accuracy (0.5\%+1). If it measures 10 V DC, the error would be . Accuracy is expressed as (\% of…
- GATE 2026 IN Q29 – In a linear element, the measured current is 100\ mA2.5\% and the measured voltage is 5\ V5\%. Which of the following options show(s) the consumed…