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

What is the name of the device used to measure the weight of wrestlers?

  1. Weighing scale

  2. Body composition analyzer

  3. Inclinometer

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

A weighing scale is used to measure the weight of wrestlers before a competition to ensure that they are within the weight class they are competing in.

Multiple choice

Which instrument is commonly used to measure the orientation of rock layers?

  1. Clinometer

  2. Compass

  3. GPS receiver

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

A clinometer is a specialized instrument used to measure the angle of inclination or dip of rock layers and other geological structures.

Multiple choice

What is the principle behind the operation of a nephelometer, a common instrument used to measure particulate matter?

  1. It measures the scattering of light by particles in the air.

  2. It measures the absorption of light by particles in the air.

  3. It measures the size of particles in the air.

  4. It measures the mass of particles in the air.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nephelometers measure the scattering of light by particles in the air, which is proportional to the concentration of particles.

Multiple choice

How can TPM be measured?

  1. Overall equipment effectiveness

  2. Mean time between failures

  3. Mean time to repair

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

TPM can be measured using overall equipment effectiveness, mean time between failures, and mean time to repair.

Multiple choice

Which instrument is used to measure atmospheric pressure?

  1. Barometer

  2. Thermometer

  3. Anemometer

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

A barometer is used to measure atmospheric pressure. It works by measuring the height of a column of mercury or other liquid that is balanced against the air pressure.

Multiple choice

What is the Beaufort Wind Scale?

  1. A scale for measuring wind speed based on observed effects on land

  2. A scale for measuring wind speed based on observed effects on water

  3. A scale for measuring wind speed based on instrument readings

  4. A scale for measuring wind direction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Beaufort Wind Scale is a scale for measuring wind speed based on observed effects on land. It ranges from 0 (calm) to 12 (hurricane).

Multiple choice

Which instrument is commonly used to measure noise levels?

  1. Sound level meter

  2. Noise dosimeter

  3. Audiometer

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

A sound level meter is a portable instrument used to measure noise levels in decibels (dB).

Multiple choice

What is the term for a watch that features a rotating bezel with markings used for measuring elapsed time?

  1. Chronograph

  2. Tachymeter

  3. GMT Watch

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

Dive watches typically have a rotating bezel with markings that allow divers to measure elapsed time underwater.

Multiple choice

What is the term for a watch that features a complication that measures the speed of an object?

  1. Chronograph

  2. Tachymeter

  3. GMT Watch

  4. World Time Display
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A tachymeter is a watch complication that allows the wearer to measure the speed of an object by measuring the time it takes to travel a known distance.

Multiple choice

What is the Pitot tube?

  1. A device used to measure the velocity of a fluid.

  2. A device used to measure the pressure of a fluid.

  3. A device used to measure the flow rate of a fluid.

  4. A device used to measure the height of a fluid.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Pitot tube is a device used to measure the velocity of a fluid. It consists of a tube with a small hole at the end. The tube is inserted into the fluid, and the pressure at the hole is measured. The velocity of the fluid can then be calculated using Bernoulli's Equation.

Multiple choice

Which of the following is NOT a type of meter?

  1. Iambic

  2. Trochaic

  3. Anapestic

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

Spondaic is not a type of meter, as it consists of two stressed syllables in a row, which is not a common pattern in English poetry.

Multiple choice

Which optical instrument is used to measure the wavelength of light?

  1. Microscope

  2. Telescope

  3. Spectrometer

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

A spectrometer is an optical instrument used to measure the wavelength of light, allowing us to analyze the composition of light sources.

Multiple choice

Which of the following is NOT a common type of environmental sensor?

  1. Temperature sensor

  2. Humidity sensor

  3. pH sensor

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

Motion sensors are not typically used for environmental monitoring, as they are designed to detect movement rather than environmental conditions.

Multiple choice

What is the purpose of using a hygrometer in an art storage facility?

  1. To measure temperature

  2. To measure humidity

  3. To measure light levels

  4. To measure air quality
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A hygrometer is used to measure humidity levels in an art storage facility. Humidity control is important for preventing damage to artworks caused by excessive moisture or dryness.

Multiple choice

What is the traditional Indian method for measuring elevations?

  1. Using a level

  2. Using a plumb bob

  3. Using a clinometer

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

In traditional Indian surveying, elevations were measured using a level, an instrument that establishes a horizontal reference plane for determining the height of objects or points.