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 a measure of quality of life in older adults?

  1. The Short Form Health Survey (SF-36)

  2. The World Health Organization Quality of Life (WHOQOL) instrument

  3. The Older Americans Resources and Services (OARS) Multidimensional Functional Assessment Questionnaire (MFAQ)

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

The Short Form Health Survey (SF-36), the World Health Organization Quality of Life (WHOQOL) instrument, and the Older Americans Resources and Services (OARS) Multidimensional Functional Assessment Questionnaire (MFAQ) are all measures of quality of life in older adults.

Multiple choice

Which of the following is an example of a meter?

  1. Iambic pentameter

  2. Trochaic octameter

  3. Anapestic dimeter

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

Iambic pentameter, trochaic octameter, and anapestic dimeter are all examples of meter.

Multiple choice

Which of these is NOT a type of scuba diving equipment?

  1. Buoyancy Compensator Device (BCD)

  2. Snorkel

  3. Dive Mask

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

A snorkel is used for surface snorkeling, not scuba diving.

Multiple choice

Which of these is NOT a common type of underwater navigation tool?

  1. Compass

  2. Depth Gauge

  3. GPS

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

GPS (Global Positioning System) is not typically used for underwater navigation, as it does not work well below the surface.

Multiple choice

Which of the following is a commonly used method for measuring streamflow velocity?

  1. Floats

  2. Current meters

  3. Acoustic Doppler velocimeters

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

Floats, current meters, and acoustic Doppler velocimeters are all commonly used methods for measuring streamflow velocity.

Multiple choice

Which of the following is a common method for measuring groundwater levels?

  1. Piezometers

  2. Observation wells

  3. Monitoring wells

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

Piezometers, observation wells, and monitoring wells are all common methods for measuring groundwater levels.

Multiple choice

Which of the following is a common method for measuring groundwater transmissivity?

  1. Pumping tests

  2. Slug tests

  3. Borehole flowmeter tests

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

Pumping tests are a common method for measuring groundwater transmissivity.

Multiple choice

Which of the following instruments is used to measure the altitude of the Sun?

  1. Aryabhata Yantra

  2. Gnomon

  3. Sundial

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

The Quadrant is used to measure the altitude of the Sun.

Multiple choice

Which of the following is a common method for measuring the flow rate of oil and gas?

  1. Orifice meters

  2. Venturi meters

  3. Ultrasonic flow meters

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

Orifice meters, Venturi meters, and ultrasonic flow meters are all common methods for measuring the flow rate of oil and gas.

Multiple choice

What type of sensor is used to measure the speed and spin of a ball in sports?

  1. Load cell

  2. Strain gauge

  3. Photoelectric sensor

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

Radar technology is used to measure the speed and spin of a ball in sports by emitting radio waves and analyzing the reflected signals.

Multiple choice

What type of sensor is used to measure the force applied to a sports equipment?

  1. Load cell

  2. Strain gauge

  3. Accelerometer

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

Load cells are used to measure the force applied to a sports equipment, such as a tennis racket or a golf club.

Multiple choice

What is the most common type of data acquisition system?

  1. Analog-to-digital converter (ADC)

  2. Digital-to-analog converter (DAC)

  3. Programmable logic controller (PLC)

  4. Distributed control system (DCS)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Analog-to-digital converters (ADCs) are the most common type of data acquisition system. They convert analog signals from sensors into digital signals that can be processed by a computer.

Multiple choice

What is the sampling rate of a data acquisition system?

  1. The number of samples taken per second

  2. The maximum frequency that can be measured

  3. The minimum frequency that can be measured

  4. The accuracy of the measurements
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sampling rate of a data acquisition system is the number of samples taken per second. The higher the sampling rate, the more accurately the signal can be reconstructed.

Multiple choice

What is the name of the scientific instrument that has been used as an artistic medium in works such as sonograms and EEG recordings?

  1. Microscope

  2. Telescope

  3. Oscilloscope

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

The Oscilloscope, typically used to visualize electrical signals, has been employed by artists to create visual representations of sound waves, brain activity, and other dynamic phenomena.

Multiple choice

Which of the following is a primary standard for voltage measurement?

  1. Voltmeter

  2. Standard Cell

  3. Potentiometer

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

A standard cell is a primary standard for voltage measurement because it provides a highly stable and accurate reference voltage.