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.

Pressure and humidity instrumentsElectrical measuring devicesMedical physics toolsNavigational instruments

Physics Measuring Instruments Questions

Multiple choice

Which instrument is used to measure the salinity of seawater?

  1. Current meter

  2. Salinometer

  3. Echosounder

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

Salinometers are instruments specifically designed to measure the salinity of seawater, providing information about the concentration of dissolved salts.

Multiple choice

Which instrument is commonly used to measure wave height and period in oceanographic studies?

  1. Salinometer

  2. Bathythermograph

  3. Wave rider buoy

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

Wave rider buoys are instruments designed to measure wave height, period, and direction, providing data for wave forecasting and coastal studies.

Multiple choice

Which instrument is used to measure the speed and direction of ocean currents?

  1. Salinometer

  2. Bathythermograph

  3. Current meter

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

Current meters are instruments specifically designed to measure the speed and direction of ocean currents, providing data for studies of ocean circulation and transport processes.

Multiple choice

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

  1. Measuring water temperature

  2. Measuring water depth

  3. Measuring wave height

  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 data for tidal predictions, coastal studies, and sea level rise monitoring.

Multiple choice

Which instrument is commonly used to measure the salinity of seawater?

  1. Current meter

  2. Salinometer

  3. Echosounder

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

Salinometers are instruments specifically designed to measure the salinity of seawater, providing data for studies of ocean circulation, water properties, and marine ecosystems.

Multiple choice

Which instrument is commonly used to measure wave height and period in oceanographic studies?

  1. Salinometer

  2. Bathythermograph

  3. Wave rider buoy

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

Wave rider buoys are instruments designed to measure wave height, period, and direction, providing data for wave forecasting, coastal studies, and studies of wave-current interactions.

Multiple choice

Which instrument is used to measure the speed and direction of ocean currents?

  1. Salinometer

  2. Bathythermograph

  3. Current meter

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

Current meters are instruments specifically designed to measure the speed and direction of ocean currents, providing data for studies of ocean circulation, transport processes, and marine ecosystems.

Multiple choice

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

  1. Measuring water temperature

  2. Measuring water depth

  3. Measuring wave height

  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 data for tidal predictions, coastal studies, and sea level rise monitoring.

Multiple choice

What is the Esperanto measurement system?

  1. The metric system

  2. The imperial system

  3. The SI system

  4. The US customary system
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Esperanto measurement system is based on the metric system, which is the most widely used measurement system in the world.

Multiple choice

Which technology is used to study the physical and chemical properties of seawater?

  1. Sonar

  2. Magnetometer

  3. CTD (Conductivity, Temperature, Depth)

  4. ROV (Remotely Operated Vehicle)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A CTD is a device used to measure the conductivity, temperature, and depth of seawater, providing valuable information about water properties and ocean circulation patterns.

Multiple choice

What is the Kelvin scale used for?

  1. Measuring color temperature

  2. Measuring brightness

  3. Measuring contrast

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

The Kelvin scale is used for measuring color temperature. It is a scale that ranges from warm (low Kelvin) to cool (high Kelvin).

Multiple choice

Which of the following is NOT a common use for a color temperature meter?

  1. Measuring the color temperature of a light source

  2. Adjusting the white balance of a camera

  3. Calibrating a monitor

  4. Measuring the brightness of a light source
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Measuring the brightness of a light source is not a common use for a color temperature meter. Color temperature meters are typically used to measure the color temperature of a light source, adjust the white balance of a camera, or calibrate a monitor.

Multiple choice

In surveying, what is the term used for the instrument used to measure angles?

  1. Theodolite

  2. Level

  3. Transit

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

In surveying, the instrument used to measure angles is called a theodolite.

Multiple choice

In navigation, what is the term used for the instrument used to measure the angle of elevation or depression of a celestial body?

  1. Sextant

  2. Astrolabe

  3. Quadrant

  4. Cross-staff
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In navigation, the instrument used to measure the angle of elevation or depression of a celestial body is called a sextant.

Multiple choice

In engineering, what is the term used for the instrument used to measure the angle between two surfaces?

  1. Protractor

  2. Clinometer

  3. Inclinometer

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

In engineering, the instrument used to measure the angle between two surfaces is called a bevel gauge.