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.
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Physics Measuring Instruments Questions
Which of the following is a tool used to measure dry ingredients?
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Measuring Cup
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Measuring Spoon
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Kitchen Scale
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Rolling Pin
A
Correct answer
Explanation
A measuring cup is a kitchen tool used to measure dry ingredients such as flour, sugar, and rice.
Which kitchen tool is used to measure liquid ingredients?
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Measuring Cup
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Measuring Spoon
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Kitchen Scale
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Rolling Pin
A
Correct answer
Explanation
A measuring cup is a kitchen tool used to measure liquid ingredients such as water, milk, and oil.
Which kitchen tool is used to measure small amounts of ingredients, such as spices and herbs?
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Measuring Cup
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Measuring Spoon
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Kitchen Scale
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Rolling Pin
B
Correct answer
Explanation
A measuring spoon is a kitchen tool used to measure small amounts of ingredients, such as spices and herbs.
What is a sphygmomanometer?
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A device used to measure blood pressure
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A device used to measure heart rate
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A device used to measure blood oxygen levels
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A device used to measure body temperature
A
Correct answer
Explanation
A sphygmomanometer is a device used to measure blood pressure.
How is blood pressure measured?
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With a sphygmomanometer and a stethoscope
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With a blood pressure monitor
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With an electrocardiogram (ECG)
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With an echocardiogram
A
Correct answer
Explanation
Blood pressure is measured with a sphygmomanometer and a stethoscope.
Which of the following instruments is commonly used in astronomical observatories?
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Telescope
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Microscope
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Spectrometer
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Barometer
A
Correct answer
Explanation
Telescopes are commonly used in astronomical observatories to magnify distant objects and collect light from them.
Which of the following technologies is used to monitor blood sugar levels in diabetic patients?
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Continuous glucose monitor
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Insulin pump
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Blood glucose meter
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All of the above
D
Correct answer
Explanation
All of the above technologies are used to monitor blood sugar levels in diabetic patients.
Which of the following is NOT a common type of environmental sensor?
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Temperature sensor
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pH sensor
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Humidity sensor
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Motion sensor
D
Correct answer
Explanation
Motion sensors are typically not used in environmental monitoring, as they are designed to detect movement and are not specific to environmental parameters.
What was the name of the instrument used by Varahamihira to determine the direction of the wind?
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Anemometer
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Windsock
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Weather vane
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Hygrometer
C
Correct answer
Explanation
Varahamihira used a weather vane to determine the direction of the wind.
Which of the following is NOT a common type of environmental monitoring sensor?
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Temperature sensor
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Humidity sensor
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Motion sensor
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pH sensor
C
Correct answer
Explanation
Motion sensors are not typically used in environmental monitoring, as they are primarily employed for security purposes.
What is the science of measurement called?
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Metrology
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Inspection
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Calibration
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Testing
A
Correct answer
Explanation
Metrology is the science of measurement, and it deals with the development of standards, methods, and instruments for measuring physical quantities.
Which of the following tools is used to measure the thickness of a board?
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Calipers
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Micrometer
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Ruler
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Combination square
A
Correct answer
Explanation
Calipers are commonly used to measure the thickness of a board accurately.
Which of the following tools is used to measure the diameter of a dowel?
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Calipers
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Micrometer
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Ruler
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Combination square
A
Correct answer
Explanation
Calipers are commonly used to measure the diameter of a dowel accurately.
Which of the following tools is used to measure the depth of a hole?
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Calipers
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Micrometer
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Depth gauge
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Combination square
C
Correct answer
Explanation
A depth gauge is a specialized tool used to measure the depth of a hole or recess.
In the context of modern technology, which physical principle is utilized in accelerometers to measure acceleration?
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Piezoelectricity
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Diffraction
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Refraction
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Polarization
A
Correct answer
Explanation
Piezoelectricity is the principle used in accelerometers to measure acceleration by converting mechanical stress into an electrical signal.