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

Which of the following is a type of velocity flow meter?

  1. Venturi meter

  2. Orifice plate

  3. Pitot tube

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

Pitot tubes are velocity flow meters that use the principle of Bernoulli's equation to measure the flow rate of a fluid.

Multiple choice

Which of the following is a type of area flow meter?

  1. Venturi meter

  2. Orifice plate

  3. Pitot tube

  4. Magnetic flow meter
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Venturi meters are area flow meters that use the principle of conservation of energy to measure the flow rate of a fluid.

Multiple choice

Which of the following is a type of mass flow meter?

  1. Venturi meter

  2. Orifice plate

  3. Pitot tube

  4. Coriolis flow meter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coriolis flow meters are mass flow meters that use the principle of Coriolis force to measure the flow rate of a fluid.

Multiple choice

What is the principle of operation of a vortex shedding flow meter?

  1. Conservation of mass

  2. Conservation of energy

  3. Faraday's law of induction

  4. Bernoulli's principle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vortex shedding flow meters operate on the principle of Bernoulli's equation, which states that the pressure of a fluid decreases as its velocity increases.

Multiple choice

Which of the following is a type of electromagnetic flow meter?

  1. Venturi meter

  2. Orifice plate

  3. Pitot tube

  4. Magnetic flow meter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Magnetic flow meters are electromagnetic flow meters that use the principle of Faraday's law of induction to measure the flow rate of a fluid.

Multiple choice

What are the main components of a ship's instrumentation and control system?

  1. Sensors

  2. Controllers

  3. Actuators

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

A ship's instrumentation and control system consists of sensors, controllers, and actuators. Sensors collect data about the ship's environment and operating conditions, controllers process this data and make decisions, and actuators carry out the controller's decisions.

Multiple choice

What are the different types of sensors used in shipboard instrumentation and control systems?

  1. Temperature sensors

  2. Pressure sensors

  3. Flow sensors

  4. Level sensors

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Shipboard instrumentation and control systems use a variety of sensors to collect data about the ship's environment and operating conditions. These sensors include temperature sensors, pressure sensors, flow sensors, level sensors, and more.

Multiple choice

What are the different types of controllers used in shipboard instrumentation and control systems?

  1. PID controllers

  2. Fuzzy logic controllers

  3. Neural network controllers

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

Shipboard instrumentation and control systems use a variety of controllers to process data from sensors and make decisions. These controllers include PID controllers, fuzzy logic controllers, neural network controllers, and more.

Multiple choice

Which instrument is commonly used to measure horizontal angles in Mine Surveying?

  1. Theodolite

  2. Level

  3. Total Station

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

Theodolite is a precise instrument used to measure horizontal and vertical angles, making it essential for angle measurements in Mine Surveying.

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.