Practice Measurement, Instruments & Physical Quantities RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This Physics question collection covers important concepts related to physical quantities, units, measurement, measuring instruments, SI units and the use of different instruments for measuring physical quantities.
These RRB Physics PYQ questions are useful for understanding the types of questions asked in Railway examinations and for revising important concepts through previous year questions. Each question includes the correct answer and explanation, helping you identify mistakes and strengthen your Physics fundamentals.
Whether you are preparing for RRB NTPC Measurement PYQ, RRB Group D Measurement PYQ, RRB JE Measurement PYQ, RRB ALP Measurement PYQ, or RRB Technician Measurement PYQ, regular practice can help you improve your understanding of measurement-related concepts and build confidence for the examination.
31
Echolocation in ships is used for measuring-
RRB Group D
2018
✓ Answer:CDepth of water
Echolocation uses reflected sound waves to determine the depth of water; this is the principle used by SONAR.
32
Which among the following devices is used to measure the atmospheric pressure?
RRB NTPC
2021
✓ Answer:DBarometer
Atmospheric pressure is measured using a barometer.
33
________ is type of Echolocation.
RRB Group D
2018
✓ Answer:DSonar
SONAR is a form of echolocation that uses sound waves to detect objects or determine distance underwater.
34
Which device is used to see the Sun?
RRB NTPC
2016
✓ Answer:CHelioscope
A helioscope is an optical instrument designed for observing the Sun and its surface.
35
Which instrument is used for measuring density of milk?
RRB Group D
2018
✓ Answer:BLactometer
A lactometer is a hydrometer calibrated for milk and is used to assess its density or specific gravity.
36
The strength of winds is measured with the help of-
RRB JE CBT-II
2019
✓ Answer:DBeaufort scale
The Beaufort scale classifies wind force based mainly on observed wind effects and conditions.
37
Voltmeter is used for measuring-
RRB JE / RRB Group D
2019 / 2018
✓ Answer:BVoltage
A voltmeter measures the potential difference or voltage between two points in an electrical circuit.
38
Which of the following instrument is used to measure the temperature?
RRB ALP (Stage-II)
2025
✓ Answer:BThermometer
A thermometer is used to measure temperature, commonly using thermal expansion or another temperature-dependent property.
39
Potentiometer basically -
RRB JE
2014
✓ Answer:AIs a measuring instrument
A potentiometer is a measuring instrument used to determine electromotive force or potential difference by comparison with a known potential.
40
Which instrument is used for measuring voltage?
RRB Group D
2018
✓ Answer:DVoltmeter
A voltmeter is specifically designed to measure potential difference (voltage).
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