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.

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Physics Measuring Instruments Questions

Multiple choice

Which of the following is not a method for measuring evapotranspiration?

  1. Lysimeters

  2. Eddy Covariance

  3. Remote Sensing

  4. Soil Moisture Sensors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soil moisture sensors are not directly used to measure evapotranspiration. They measure the amount of water in the soil, which can be used to estimate evapotranspiration indirectly.

Multiple choice

Which of the following is not a common type of emission monitoring equipment?

  1. Continuous emission monitors

  2. Opacity monitors

  3. Flow monitors

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

Temperature monitors are not a type of emission monitoring equipment because they do not measure emissions from stationary sources.

Multiple choice

What is the modern equivalent of the sextant?

  1. The GPS

  2. The compass

  3. The radar

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

The modern equivalent of the sextant is the GPS (Global Positioning System). The GPS is a satellite-based navigation system that provides accurate location and time information to users on Earth.

Multiple choice

Which of the following is not a common type of air pollution monitoring equipment used in museums?

  1. Gas detectors

  2. Particulate matter monitors

  3. Temperature and humidity sensors

  4. Wind speed and direction sensors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Wind speed and direction sensors are not commonly used in museums for air pollution monitoring, as they are primarily used for weather monitoring.

Multiple choice

Which tool is commonly used to measure and analyze electrical power consumption in an energy audit?

  1. Power Quality Analyzer

  2. Infrared Camera

  3. Ultrasonic Detector

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

A power quality analyzer is a device used to measure and analyze electrical power consumption, including voltage, current, power factor, and harmonics.

Multiple choice

Which tool is used to measure air velocity and flow rate in an energy audit?

  1. Anemometer

  2. Power Quality Analyzer

  3. Infrared Camera

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

An anemometer is a device used to measure air velocity and flow rate, which is important for assessing ventilation and airflow in an energy audit.

Multiple choice

Which tool is used to measure and analyze the performance of heating, ventilation, and air conditioning (HVAC) systems?

  1. Power Quality Analyzer

  2. Infrared Camera

  3. HVAC Analyzer

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

An HVAC analyzer is a specialized tool used to measure and analyze the performance of heating, ventilation, and air conditioning systems.

Multiple choice

Which tool is used to measure and analyze the energy consumption of appliances and equipment?

  1. Power Quality Analyzer

  2. Infrared Camera

  3. Ultrasonic Detector

  4. Plug-in Energy Meter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A plug-in energy meter is a device that can be plugged into an electrical outlet to measure and analyze the energy consumption of appliances and equipment.

Multiple choice

Which of the following is an example of a self-monitoring tool for diabetes?

  1. A blood glucose meter

  2. A blood pressure monitor

  3. A weight scale

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

All of the options are examples of self-monitoring tools for diabetes. A blood glucose meter is used to measure blood sugar levels, a blood pressure monitor is used to measure blood pressure, and a weight scale is used to measure weight. Self-monitoring is an important part of diabetes management, as it allows patients to track their condition and make adjustments to their treatment plan as needed.

Multiple choice

Which instrument is used to measure the radial velocity of a star?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

A spectrograph is used to measure the radial velocity of a star by splitting the light into its component wavelengths and detecting the Doppler shift.

Multiple choice

Which instrument is used to measure the microlensing of light?

  1. Telescope

  2. Photometer

  3. Interferometer

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

A telescope is used to measure the microlensing of light by observing the change in brightness of a background star caused by the gravitational lensing of its light by an exoplanet.

Multiple choice

Which of the following instruments is used to measure the mass of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Astrometry can be used to measure the mass of an exoplanet by observing the wobble of the host star caused by the gravitational pull of the exoplanet.

Multiple choice

Which of the following instruments is used to measure the radius of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Photometry can be used to measure the radius of an exoplanet by observing the transit of the exoplanet across the host star.

Multiple choice

Which of the following instruments is used to measure the composition of an exoplanet's atmosphere?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Spectrography can be used to measure the composition of an exoplanet's atmosphere by analyzing the light that passes through the atmosphere.

Multiple choice

Which of the following instruments is used to measure the temperature of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Photometry can be used to measure the temperature of an exoplanet by observing the amount of infrared radiation emitted by the exoplanet.