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

Multiple choice

Which tool is used to measure the length of metal sheets?

  1. Ruler

  2. Tape measure

  3. Calipers

  4. Micrometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A ruler is a tool used to measure the length of metal sheets.

Multiple choice

Which tool is used to measure distances on a map?

  1. Compass

  2. Scale bar

  3. Protractor

  4. Map wheel
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A scale bar is a graphic used to measure distances on a map.

Multiple choice

Which hand tool is used to measure and mark angles?

  1. Protractor

  2. Tape measure

  3. Level

  4. Combination square
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A protractor is a hand tool used to measure and mark angles.

Multiple choice

Which hand tool is used to measure and mark straight lines?

  1. Tape measure

  2. Ruler

  3. Level

  4. Combination square
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A ruler is a hand tool used to measure and mark straight lines.

Multiple choice

Which medical instrument was commonly used to examine the throat and diagnose illnesses?

  1. Stethoscope

  2. Otoscope

  3. Laryngoscope

  4. Speculum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The speculum, a medical instrument used to examine the throat and other body cavities, was commonly employed in medieval medicine.

Multiple choice

Which of the following is NOT a type of astronomical detector?

  1. Charge-coupled device (CCD)

  2. Photomultiplier tube

  3. Bolometer

  4. Electron microscope
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

Which of the following methods is commonly used to measure soil temperature?

  1. Thermometer

  2. Pyrometer

  3. Thermocouple

  4. All of the above
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

What is the term for the device used to measure a skydiver's altitude during freefall?

  1. Altimeter

  2. Barometer

  3. GPS

  4. Anemometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Skydivers use an altimeter to measure their altitude during freefall.

Multiple choice

Which type of sensor is commonly used to measure the speed of a ship's propeller?

  1. Tachometer

  2. Pitot tube

  3. Flowmeter

  4. Accelerometer
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

Which type of sensor is commonly used to measure the position of a ship's rudder?

  1. Linear potentiometer

  2. Rotary encoder

  3. Hall effect sensor

  4. Optical encoder
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

Which type of sensor is commonly used to measure the temperature of a ship's engine exhaust gases?

  1. Thermocouple

  2. Resistance temperature detector (RTD)

  3. Infrared sensor

  4. Pyrometer
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

What is the term used to describe a watch that features a stopwatch function?

  1. GMT watch

  2. Chronograph watch

  3. Dive watch

  4. Pilot watch
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chronograph watches feature a stopwatch function that allows the wearer to measure elapsed time.

Multiple choice

What is the primary purpose of a current meter in oceanographic studies?

  1. Measuring water temperature

  2. Measuring water depth

  3. Measuring water currents

  4. Measuring water salinity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Current meters are designed to measure the speed and direction of water currents in oceans, lakes, and rivers.

Multiple choice

Which instrument is commonly used to measure the temperature of the ocean at various depths?

  1. Salinometer

  2. Bathythermograph

  3. Conductivity-Temperature-Depth (CTD) sensor

  4. Echosounder
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Conductivity-Temperature-Depth (CTD) sensors are commonly used to measure temperature, conductivity (salinity), and depth simultaneously.

Multiple choice

What is the function of a tide gauge in oceanographic studies?

  1. Measuring wave height

  2. Measuring water currents

  3. Measuring water temperature

  4. Measuring sea level variations
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tide gauges are instruments used to measure sea level variations over time, providing valuable data for tidal predictions and coastal studies.