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

Multiple choice

What is the primary method used to study the Earth's gravity field?

  1. Gravimeters

  2. Seismometers

  3. Magnetometers

  4. Heat flow meters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gravimeters are used to study the Earth's gravity field. They measure the strength of the gravitational field at a given location.

Multiple choice

What is the primary method used to study the Earth's heat flow?

  1. Heat flow meters

  2. Seismometers

  3. Magnetometers

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

Heat flow meters are used to study the Earth's heat flow. They measure the amount of heat that flows through a given area of the Earth's surface.

Multiple choice

Which optical instrument is used to measure the angle of deviation of light passing through a prism?

  1. Spectrometer

  2. Telescope

  3. Microscope

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

A refractometer is an optical instrument used to measure the angle of deviation of light passing through a prism, allowing for the determination of the refractive index of a substance.

Multiple choice

Which of the following is an amperometric method?

  1. Voltammetry

  2. Potentiometry

  3. Conductometry

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

Polarography is an amperometric method used to study the reduction of metal ions in solution.

Multiple choice

What is the name of the test that is used to measure hearing loss?

  1. Audiometry

  2. Otoscopy

  3. Tympanometry

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

Audiometry is a test that is used to measure hearing loss. It involves playing sounds of different frequencies and volumes into the ear and asking the person to indicate when they can hear the sound.

Multiple choice

Which of the following is NOT a type of telescope used in astrophysics?

  1. Radio telescope

  2. Optical telescope

  3. Electron microscope

  4. X-ray telescope
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electron microscopes are used to study objects at the atomic and subatomic level and are not specifically used in astrophysics.

Multiple choice

Which type of sensor is commonly used to measure air quality?

  1. Temperature sensor

  2. Humidity sensor

  3. Gas sensor

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

Gas sensors are specifically designed to detect and measure the concentration of various gases in the air, making them suitable for air quality monitoring.

Multiple choice

Which equipment is used to measure the distance traveled by a golf ball?

  1. Golf club

  2. Golf ball

  3. Golf tee

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

A rangefinder is a device used in golf to measure the distance between the player and the target (flag or hole).

Multiple choice

Which equipment is used to measure the speed of a baseball pitch?

  1. Radar gun

  2. Stopwatch

  3. Tape measure

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

A radar gun is used to measure the speed of a baseball pitch in miles per hour.

Multiple choice

What is the name of the diagnostic technique used to measure the plasma density in a tokamak?

  1. Interferometry

  2. Spectroscopy

  3. Magnetic probes

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

Interferometry is a diagnostic technique that uses the interference of electromagnetic waves to measure the plasma density in a tokamak.

Multiple choice

What is the name of the diagnostic technique used to measure the plasma temperature in a tokamak?

  1. Thomson scattering

  2. X-ray spectroscopy

  3. Neutron spectrometry

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

Thomson scattering is a diagnostic technique that uses the scattering of laser light by plasma particles to measure the plasma temperature.

Multiple choice

Which instrument is commonly used to measure atmospheric pressure?

  1. Barometer

  2. Thermometer

  3. Anemometer

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

A barometer is a device used to measure atmospheric pressure. Thermometers measure temperature, anemometers measure wind speed, and radiosondes are used for upper-air measurements.

Multiple choice

Which of the following is NOT a common type of environmental monitoring system used in museums?

  1. Temperature and humidity sensors

  2. Light meters

  3. Motion detectors

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

Motion detectors are not commonly used as environmental monitoring systems in museums because they are primarily used for security purposes, not for monitoring environmental conditions.

Multiple choice

Which component measures the wind speed and direction in a wind turbine control system?

  1. Anemometer

  2. Wind vane

  3. Tachometer

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

An anemometer is used to measure wind speed, while a wind vane measures wind direction.

Multiple choice

Which component measures the power output of a wind turbine?

  1. Anemometer

  2. Wind vane

  3. Tachometer

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

Power meters measure the power output of wind turbines.