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 optical instrument is used to measure the angle of incidence of light?

  1. Telescope

  2. Microscope

  3. Spectroscope

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

A goniometer is an optical instrument used to measure the angle of incidence of light on a surface.

Multiple choice

Which optical instrument is used to measure the refractive index of a material?

  1. Telescope

  2. Microscope

  3. Refractometer

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

A refractometer is an optical instrument used to measure the refractive index of a material.

Multiple choice

Which instrument is commonly used to measure the flow rate of a liquid in a pipe?

  1. Pressure gauge

  2. Rotameter

  3. Thermometer

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

Rotameters are commonly used to measure the flow rate of a liquid in a pipe by utilizing the principle of variable area flow measurement, where the float position indicates the flow rate.

Multiple choice

Which type of instrument is commonly used to measure the temperature of a process stream?

  1. Pressure gauge

  2. Rotameter

  3. Thermometer

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

Thermometers are commonly used to measure the temperature of a process stream by utilizing various principles such as liquid expansion, electrical resistance, or infrared radiation.

Multiple choice

Which golf accessory is used to measure the distance to the hole?

  1. Rangefinder

  2. GPS watch

  3. Yardage book

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

A rangefinder is a golf accessory used to measure the distance to the hole. It emits a laser beam that bounces off the target and returns to the device, providing an accurate measurement of the distance.

Multiple choice

What is the name of the instrument used to measure the Earth's magnetic field?

  1. Seismometer

  2. Magnetometer

  3. Gravimeter

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

A magnetometer is an instrument used to measure the Earth's magnetic field.

Multiple choice

What is the name of the instrument used to measure the Earth's gravitational field?

  1. Seismometer

  2. Magnetometer

  3. Gravimeter

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

A gravimeter is an instrument used to measure the Earth's gravitational field.

Multiple choice

What is a photometer?

  1. A device used to measure the intensity of light

  2. A device used to measure the distance to celestial objects

  3. A device used to study the composition of celestial objects

  4. A device used to study the structure of celestial objects
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A photometer is a device used to measure the intensity of light, which allows astronomers to study the brightness and temperature of celestial objects.

Multiple choice

Which ancient Chinese invention is used to measure the direction of the wind?

  1. The compass

  2. The astrolabe

  3. The sundial

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

The anemometer is an ancient Chinese invention used to measure the direction of the wind. It consists of a rotating vane that is attached to a pointer.

Multiple choice

Which ancient Chinese invention is used to measure the distance?

  1. The odometer

  2. The compass

  3. The astrolabe

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

The odometer is an ancient Chinese invention used to measure the distance. It consists of a wheel that is attached to a counting mechanism.

Multiple choice

Which of the following was not a common alchemical instrument?

  1. Athanor

  2. Alembic

  3. Retort

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

Microscopes were not invented until the 16th century, so they were not used in medieval alchemy.

Multiple choice

Which travel tool is used to measure the temperature and humidity of the surrounding environment?

  1. Thermometer

  2. Hygrometer

  3. Barometer

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

A thermometer is a tool used to measure the temperature of the surrounding environment, providing information about the current weather conditions.

Multiple choice

Which travel tool is used to measure the temperature and humidity of the surrounding environment?

  1. Thermometer

  2. Hygrometer

  3. Barometer

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

A thermometer is a tool used to measure the temperature of the surrounding environment, providing information about the current weather conditions.

Multiple choice

Which of these is NOT a type of marine geophysical instrument?

  1. Multibeam echosounder

  2. Side-scan sonar

  3. Sub-bottom profiler

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

Magnetometer is NOT a type of marine geophysical instrument. It is a device used to measure the strength and direction of magnetic fields.

Multiple choice

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

  1. Magnetometers

  2. Seismometers

  3. Gravimeters

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

Magnetometers are used to study the Earth's magnetic field. They measure the strength and direction of the magnetic field at a given location.