Physics ยท General Awareness
Physics Measuring Instruments
1,123 Questions
Physics measuring instruments are essential tools used to measure various physical quantities. This topic covers devices like hygrometers, oscilloscopes, and sphygmomanometers. It is a highly scoring section in general science and general awareness examinations.
Pressure and humidity instrumentsElectrical measuring devicesMedical physics toolsNavigational instruments
Physics Measuring Instruments Questions
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Galvanometer
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Voltmeter
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Ammeter
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Potentiometer
A
Correct answer
Explanation
A galvanometer is a sensitive instrument used to detect and measure small electric currents. An ammeter measures the magnitude of current, while a voltmeter measures potential difference.
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Galvanometer
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Voltmeter
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Ammeter
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Potentiometer
B
Correct answer
Explanation
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit.
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Pyrometer
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Tachometer
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Anemometer
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Dynamometer
B
Correct answer
Explanation
A tachometer is a device used to measure the rotation speed of a shaft or disk, such as in a motor or engine. Pyrometers measure temperature, anemometers measure wind speed, and dynamometers measure force or torque.
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Pyrometer
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Tachometer
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Anemometer
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Dynamometer
C
Correct answer
Explanation
An anemometer is an instrument used to measure the speed or velocity of a fluid, typically air or wind. Pyrometers measure temperature, and tachometers measure rotational speed.
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Pyrometer
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Tachometer
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Anemometer
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Dynamometer
A
Correct answer
Explanation
A pyrometer is a type of remote-sensing thermometer used to measure the temperature of surfaces, particularly high temperatures where contact thermometers would be damaged.
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Pyrometer
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Tachometer
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Anemometer
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Dynamometer
D
Correct answer
Explanation
A dynamometer is a device for measuring force, torque, or power. It is commonly used to measure the power output of engines or motors.
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Hygrometer
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Hydrometer
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Gravimeter
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Hypsometer
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A manometer
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An ammeter
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A thermometer
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Vernier callipers
A
Correct answer
Explanation
A manometer is a scientific instrument specifically designed to measure fluid or gas pressure. Ammeters measure current, thermometers measure temperature, and Vernier callipers measure length.
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An instrument used to detect earth quake
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Another name of a lie detector
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An instrument used to generate electricity by light.
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An instrument used to communicate
D
Correct answer
Explanation
A heliograph is an instrument used for signaling by flashing sunlight using a mirror. It was historically used for long-distance communication.
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Hydrometer
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Hygrometer
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Seismometer
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Barometer
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None of these
B
Correct answer
Explanation
A hygrometer is the standard instrument used to measure the humidity or moisture content in the air.
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Maximum-minimum thermometer
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Rain gauge
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Stethoscope
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Hygrometer
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Barometer
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Hygrometer
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Sphygmomanometer
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Thermometer
B
Correct answer
Explanation
A hygrometer is the standard instrument used to measure the moisture content or humidity in the atmosphere.
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Hygroscope
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Manometer
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Lactometer
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Odometer
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None of these
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Electroscope
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Ammeter
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Galvanometer
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Arcograph
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None of these
A
Correct answer
Explanation
An electroscope is a scientific instrument used to detect the presence and magnitude of electric charge on a body.
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Anemometer
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Stethoscope
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Thermometer
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Bimetallic thermometer
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Barometer
B
Correct answer
Explanation
This is the correct option. Stethoscope is used by a doctor to measure the heartbeat.