Physics ยท General Awareness
Physics Measuring Instruments
1,180 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
Which accessory is used to measure and dispense precise amounts of coffee grounds?
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Coffee Scoop
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Coffee Tamper
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Coffee Grinder
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Portafilter
A
Correct answer
Explanation
Coffee scoops are used to measure the correct amount of coffee grounds for brewing.
Which accessory is used to measure and dispense precise amounts of liquid ingredients?
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Coffee Scoop
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Coffee Tamper
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Coffee Grinder
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Jigger
D
Correct answer
Explanation
Jiggers are used to measure and dispense precise amounts of liquid ingredients, such as spirits and syrups.
Which tool is used to measure the thickness of metal sheets?
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Micrometer
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Calipers
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Ruler
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Protractor
A
Correct answer
Explanation
A micrometer is a tool used to measure the thickness of metal sheets.
Which tool is used to measure the length of metal sheets?
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Ruler
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Tape measure
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Calipers
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Micrometer
A
Correct answer
Explanation
A ruler is a tool used to measure the length of metal sheets.
Which tool is used to measure distances on a map?
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Compass
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Scale bar
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Protractor
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Map wheel
B
Correct answer
Explanation
A scale bar is a graphic used to measure distances on a map.
Which hand tool is used to measure and mark angles?
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Protractor
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Tape measure
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Level
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Combination square
A
Correct answer
Explanation
A protractor is a hand tool used to measure and mark angles.
Which hand tool is used to measure and mark straight lines?
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Tape measure
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Ruler
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Level
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Combination square
B
Correct answer
Explanation
A ruler is a hand tool used to measure and mark straight lines.
Which medical instrument was commonly used to examine the throat and diagnose illnesses?
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Stethoscope
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Otoscope
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Laryngoscope
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Speculum
D
Correct answer
Explanation
The speculum, a medical instrument used to examine the throat and other body cavities, was commonly employed in medieval medicine.
Which of the following is NOT a type of astronomical detector?
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Charge-coupled device (CCD)
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Photomultiplier tube
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Bolometer
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Electron microscope
D
Correct answer
Explanation
Electron microscopes are used to magnify very small objects, such as cells and molecules. They do not detect light, so they are not considered astronomical detectors.
Which of the following methods is commonly used to measure soil temperature?
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Thermometer
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Pyrometer
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Thermocouple
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All of the above
D
Correct answer
Explanation
Thermometers, pyrometers, and thermocouples are all commonly used methods for measuring soil temperature. Each method has its own advantages and disadvantages, and the choice of method depends on specific requirements.
What is the term for the device used to measure a skydiver's altitude during freefall?
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Altimeter
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Barometer
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GPS
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Anemometer
A
Correct answer
Explanation
Skydivers use an altimeter to measure their altitude during freefall.
Which type of sensor is commonly used to measure the speed of a ship's propeller?
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Tachometer
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Pitot tube
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Flowmeter
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Accelerometer
A
Correct answer
Explanation
Tachometers are typically used to measure the speed of a ship's propeller by sensing the rotational speed of the propeller shaft.
Which type of sensor is commonly used to measure the position of a ship's rudder?
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Linear potentiometer
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Rotary encoder
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Hall effect sensor
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Optical encoder
B
Correct answer
Explanation
Rotary encoders are frequently used to measure the position of a ship's rudder, providing accurate and reliable feedback for steering control systems.
Which type of sensor is commonly used to measure the temperature of a ship's engine exhaust gases?
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Thermocouple
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Resistance temperature detector (RTD)
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Infrared sensor
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Pyrometer
A
Correct answer
Explanation
Thermocouples are frequently used to measure the temperature of a ship's engine exhaust gases due to their fast response time and ability to withstand high temperatures.
What is the term used to describe a watch that features a stopwatch function?
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GMT watch
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Chronograph watch
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Dive watch
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Pilot watch
B
Correct answer
Explanation
Chronograph watches feature a stopwatch function that allows the wearer to measure elapsed time.