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

What are some factors that can affect the accuracy of a color temperature meter?

  1. The type of light source being measured

  2. The distance between the meter and the light source

  3. The angle at which the meter is pointed at the light source

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

The accuracy of a color temperature meter can be affected by several factors, including the type of light source being measured, the distance between the meter and the light source, and the angle at which the meter is pointed at the light source.

Multiple choice

What are some limitations of using a color temperature meter?

  1. Color temperature meters can only measure the color temperature of a single light source.

  2. Color temperature meters cannot measure the color temperature of mixed light sources.

  3. Color temperature meters are not always accurate in low-light conditions.

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

Color temperature meters have some limitations, including the fact that they can only measure the color temperature of a single light source, they cannot measure the color temperature of mixed light sources, and they are not always accurate in low-light conditions.

Multiple choice

What is the name of the device that is used to measure the thickness of a thin film?

  1. Ellipsometer

  2. Atomic force microscope

  3. Scanning electron microscope

  4. Transmission electron microscope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ellipsometer is a device that is used to measure the thickness of a thin film.

Multiple choice

Which instrument is commonly used to measure the Earth's gravitational field?

  1. Gravimeter

  2. Theodolite

  3. Level

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

A gravimeter is a device used to measure the Earth's gravitational field.

Multiple choice

Which instrument is commonly used to measure horizontal angles in surveying?

  1. Theodolite

  2. Level

  3. Total station

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

A theodolite is commonly used to measure horizontal angles in surveying.

Multiple choice

Which type of surveying instrument is commonly used to measure vertical angles?

  1. Theodolite

  2. Level

  3. Total station

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

A level is commonly used to measure vertical angles.

Multiple choice

Which type of surveying instrument is commonly used to measure distances?

  1. Theodolite

  2. Level

  3. Total station

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

A total station is commonly used to measure distances.

Multiple choice

What is the name of the test that is used to measure the function of the vestibular system?

  1. Electronystagmography

  2. Vestibular evoked myogenic potentials

  3. Caloric stimulation test

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

Tests that are used to measure the function of the vestibular system include electronystagmography, vestibular evoked myogenic potentials, and caloric stimulation test.

Multiple choice

What is the most common method used to measure noise levels?

  1. Sound level meter.

  2. Noise dosimeter.

  3. Audiometer.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A sound level meter is the most common instrument used to measure noise levels.

Multiple choice

Which of the following is NOT a type of automotive sensor?

  1. Oxygen sensor

  2. Mass air flow sensor

  3. Knock sensor

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

Tire pressure sensors are not typically considered automotive sensors in the context of automotive electrical and electronic systems.

Multiple choice

Which of the following is not a type of spectrometer?

  1. Optical spectrometer

  2. Radio spectrometer

  3. X-ray spectrometer

  4. Infrared spectrometer
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

All of the options are types of spectrometers.

Multiple choice

Which of the following is not a type of radiometer?

  1. Total power radiometer

  2. Dicke radiometer

  3. Correlation radiometer

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

Imaging radiometers are not a type of radiometer.

Multiple choice

Which of the following is a type of solid-state sensor?

  1. Thermistor

  2. Photodiode

  3. Piezoelectric sensor

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

Thermistors, photodiodes, and piezoelectric sensors are all types of solid-state sensors.

Multiple choice

What is the primary application of thermistors?

  1. Temperature measurement

  2. Pressure measurement

  3. Light measurement

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

Thermistors are primarily used for temperature measurement.

Multiple choice

What is the primary application of photodiodes?

  1. Temperature measurement

  2. Pressure measurement

  3. Light measurement

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

Photodiodes are primarily used for light measurement.