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 common type of sensor used in Mechatronics?

  1. Strain gauge

  2. Load cell

  3. Proximity sensor

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

Tachometers are not typically used in Mechatronics, as they are primarily used for measuring speed.

Multiple choice

Which of the following is NOT a common type of sensor used in Mechatronics?

  1. Strain gauge

  2. Load cell

  3. Proximity sensor

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

Tachometers are not typically used in Mechatronics, as they are primarily used for measuring speed.

Multiple choice

What is the term for the instrument used to measure the angle between the horizon and a celestial body?

  1. Sextant

  2. Astrolabe

  3. Compass

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

The sextant is an instrument used to measure the angle between the horizon and a celestial body, which is essential for navigation.

Multiple choice

What is the term for the instrument used to determine the direction of magnetic north?

  1. Sextant

  2. Astrolabe

  3. Compass

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

The compass is an instrument used to determine the direction of magnetic north, which is essential for navigation.

Multiple choice

What is the term for the instrument used to measure the speed of a ship through water?

  1. Sextant

  2. Astrolabe

  3. Compass

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

The log line is an instrument used to measure the speed of a ship through water.

Multiple choice

Which of these is NOT a common type of mobile device sensor?

  1. Accelerometer

  2. Gyroscope

  3. Magnetometer

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

Barometers are not as common a type of mobile device sensor as accelerometers, gyroscopes, and magnetometers.

Multiple choice

What is the Saffir-Simpson Hurricane Wind Scale used for?

  1. Measuring hurricane wind speeds

  2. Predicting hurricane tracks

  3. Estimating hurricane damage

  4. Classifying hurricane intensity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Saffir-Simpson Hurricane Wind Scale is used to classify the intensity of hurricanes based on their maximum sustained wind speeds, with categories ranging from 1 to 5.

Multiple choice

What is the most important piece of equipment for wilderness weather forecasting?

  1. A barometer

  2. A thermometer

  3. A wind meter

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

A barometer is the most important piece of equipment for wilderness weather forecasting, as it can be used to measure air pressure, which is a key indicator of weather conditions.

Multiple choice

What is gage repeatability and reproducibility?

  1. A measure of the accuracy of a measuring instrument

  2. A measure of the precision of a measuring instrument

  3. A measure of the reliability of a measuring instrument

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

Gage repeatability and reproducibility is a measure of the accuracy, precision, and reliability of a measuring instrument.

Multiple choice

Which sensor type is commonly used for measuring the robot's linear acceleration?

  1. Accelerometer

  2. Gyroscope

  3. Ultrasonic sensor

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

Accelerometers measure linear acceleration, which is the rate of change in the robot's velocity. This information is useful for tasks such as navigation, motion control, and detecting impacts.

Multiple choice

Which sensor type is commonly used for measuring the robot's joint angles?

  1. Accelerometer

  2. Gyroscope

  3. Encoder

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

Encoders measure the angular position or displacement of a robot's joints. This information is essential for tasks such as motion control, feedback control, and accurate positioning.

Multiple choice

Which sensor type is commonly used for measuring the robot's velocity?

  1. Accelerometer

  2. Gyroscope

  3. Encoder

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

Tachometers measure the angular velocity or rotational speed of a robot's joints or motors. This information is useful for tasks such as motion control, speed regulation, and monitoring the robot's performance.

Multiple choice

Which of the following is NOT a common type of environmental monitoring device used in museums and archives to protect photographic materials?

  1. Thermometer

  2. Hygrometer

  3. Light meter

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

Light meters are not typically used as environmental monitoring devices in museums and archives, as they are primarily used to measure the amount of light falling on a subject for photography purposes. Thermometers, hygrometers, and vibration meters are all common devices used to monitor temperature, relative humidity, and vibration levels, respectively, in order to control the environment and protect photographic materials.

Multiple choice

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

  1. To measure temperature

  2. To measure relative 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 relative humidity in an artwork storage facility. This information is important for monitoring and controlling the climate conditions within the facility.

Multiple choice

What is the purpose of using a light meter in an artwork storage facility?

  1. To measure temperature

  2. To measure relative humidity

  3. To measure light levels

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

A light meter is used to measure light levels in an artwork storage facility. This information is important for monitoring and controlling the amount of light exposure to artworks.