By using this site, you agree to the Privacy Policy and Terms of Use.
Accept
Automation CommunityAutomation Community
  • PLC
  • Control Systems
  • Instrumentation
  • Calibration
  • Electrical
  • Courses
    • Siemens PLC Course
    • Allen Bradley PLC Course
    • InTouch SCADA Course
    • WinCC SCADA Course
    • Siemens Tia Portal
    • Omron PLC Course
    • Advanced PLC Course
Search
  • Customize Interests
  • My Bookmarks
© Automation Community. All Rights Reserved.
Reading: Flow Measurement Objective Questions and Answers
Share
Notification Show More
Aa
Automation CommunityAutomation Community
Aa
  • PLC
  • Control Systems
  • Instrumentation
Search
  • PLC
  • Control Systems
  • Instrumentation
  • Calibration
  • Electrical
  • Courses
    • Siemens PLC Course
    • Allen Bradley PLC Course
    • InTouch SCADA Course
    • WinCC SCADA Course
    • Siemens Tia Portal
    • Omron PLC Course
    • Advanced PLC Course
Follow US
© 2023. All Rights Reserved.
Automation Community > Blog > Instrumentation > Flow Measurement Objective Questions and Answers
Instrumentation

Flow Measurement Objective Questions and Answers

Vivek
Last updated: 2023/05/08 at 2:36 PM
Vivek
Share
18 Min Read
SHARE

Looking to test your knowledge of flow measurement? Instrumentation engineers must try these multiple-choice questions and answers. This collection of unique MCQs covers a range of topics related to flow measurement, from basic principles to common industrial applications.

Contents
Flow Measurement Objective Questions and AnswersWhat is the definition of flow rate?What is the difference between mass flow rate and volumetric flow rate?What is the principle of operation for a turbine flow meter?Which flow measurement technique is based on the principle of fluid displacement?What is the term for the ratio of the actual flow rate to the maximum rated flow rate of a flow meter?Which flow meter technology is based on the principle of measuring the velocity of a fluid at one or more points in a pipe?Which flow measurement technique is based on the principle of measuring the pressure drop across a flow obstruction?Which of the following flow measurement devices operates based on the principle of Bernoulli’s equation?Which of the following flow measurement devices is commonly used to measure the flow of high-viscosity fluids?Which of the following flow measurement devices is suitable for measuring the flow rate of corrosive fluids?Which of the following flow measurement devices uses the principle of Faraday’s law of electromagnetic induction?Which of the following flow measurement devices is suitable for measuring the flow rate of dirty fluids?Which of the following flow measurement devices can measure both flow rate and fluid density?Which flow meter uses the principle of a rotating paddle?Which of the following flow meters is not a type of differential pressure flow meter?Which of the following flow meters is most suitable for measuring the flow rate of gas streams?Which of the following flow measurement methods is based on the principle of fluid momentum?Which of the following flow measurement methods is best suited for measuring low flow rates?Which of the following flow measurement methods requires a fluid with high electrical conductivity?Which of the following flow measurement methods is based on the principle of the Doppler effect?Which of the following flow measurement methods is best suited for measuring the flow rate of slurries or non-Newtonian fluids?Which of the following is not a type of flowmeter?Which of the following flowmeters is known for its high accuracy and reliability?Which of the following is not a type of DP flowmeter?Which of the following is not a fluid property that affects flow measurement?Which of the following flowmeters is known for its high turndown ratio?Which of the following flow meters is based on the principle of fluid acceleration?Which of the following flow meters can measure the flow rate of slurries and abrasive fluids?Which of the following flow meters is based on the principle of measuring the change in frequency of sound waves?Which of the following flow meters is not a volumetric flow meter?Which of the following flow meters is based on the principle of measuring the change in the angular velocity of a fluid?Which of the following flow measurement technologies is based on the principle of heat transfer?

Flow Measurement Objective Questions and Answers

Flow Measurement Objective Questions and Answers

Whether you’re an instrumentation engineer or just curious about the topic, these questions are sure to provide a challenging and informative quiz. So, let’s test your flow measurement knowledge.

What is the definition of flow rate?

a) The amount of fluid flowing per unit time
b) The amount of fluid stored in a container
c) The amount of pressure in a fluid
d) The amount of fluid velocity

Answer: a) The amount of fluid flowing per unit time

Explanation: Flow rate is defined as the amount of fluid that flows through a given area per unit time. It is typically measured in units of volume per unit time, such as gallons per minute or cubic meters per second.

What is the difference between mass flow rate and volumetric flow rate?

a) Mass flow rate is measured in units of mass per unit time, while volumetric flow rate is measured in units of volume per unit time
b) Mass flow rate is independent of the fluid density, while volumetric flow rate depends on the fluid density
c) Mass flow rate is typically used for liquids, while volumetric flow rate is typically used for gases
d) Both a and b

Answer: d) Both a and b

Explanation: Mass flow rate is a measure of the amount of mass that flows through a given area per unit time, while volumetric flow rate is a measure of the amount of volume that flows through a given area per unit time. Mass flow rate is independent of the fluid density, while volumetric flow rate depends on the fluid density.

What is the principle of operation for a turbine flow meter?

a) The pressure drop across an obstruction is proportional to the flow rate
b) The frequency of rotation of a turbine blade is proportional to the flow rate
c) The change in electrical resistance of a conductor is proportional to the flow rate
d) The change in magnetic field strength is proportional to the flow rate

Answer: b) The frequency of rotation of a turbine blade is proportional to the flow rate

Explanation: In a turbine flow meter, a turbine with multiple blades is placed in the path of the fluid flow. The blades are designed to rotate in response to the fluid flow, and the frequency of rotation is proportional to the flow rate.

Which flow measurement technique is based on the principle of fluid displacement?

a) Electromagnetic flow meter
b) Positive displacement flow meter
c) Ultrasonic flow meter
d) Coriolis flow meter

Answer: b) Positive displacement flow meter

Explanation: Positive displacement flow meters measure fluid flow by dividing the fluid into fixed, known volumes and counting the number of times these volumes are displaced to measure the flow rate.

What is the term for the ratio of the actual flow rate to the maximum rated flow rate of a flow meter?

a) Repeatability
b) Accuracy
c) Linearity
d) Turndown ratio

More Read

30 Communication Protocols in Automation and Instrumentation

Instrumentation Standards Questions and Answers

RS232 RS485 RS422 Communication Protocols – Questions and Answers

Thermocouple Questions and Answers

Serial Communication Questions and Answers

Answer: d) Turndown ratio

Explanation: Turndown ratio is the ratio of the actual flow rate to the maximum rated flow rate of a flow meter. It is an important factor to consider when selecting a flow meter, as it indicates the range over which the meter can accurately measure flow.

Which flow meter technology is based on the principle of measuring the velocity of a fluid at one or more points in a pipe?

a) Magnetic flow meter
b) Ultrasonic flow meter
c) Differential pressure flow meter
d) Thermal flow meter

Answer: b) Ultrasonic flow meter

Explanation: Ultrasonic flow meters use sound waves to measure the velocity of a fluid at one or more points in a pipe. By measuring the time it takes for the sound waves to travel upstream and downstream, the flow rate can be calculated.

Which flow measurement technique is based on the principle of measuring the pressure drop across a flow obstruction?

a) Positive displacement flow meter
b) Vortex flow meter
c) Turbine flow meter
d) Differential pressure flow meter

Answer: d) Differential pressure flow meter

Explanation: Differential pressure flow meters work by measuring the pressure drop across a flow obstruction in a pipe, such as an orifice plate, venturi tube, or flow nozzle. By measuring the pressure difference between two points in the pipe, the flow rate can be calculated.

Which of the following flow measurement devices operates based on the principle of Bernoulli’s equation?

a. Coriolis flow meter
b. Venturi meter
c. Magnetic flow meter
d. Ultrasonic flow meter

Answer: b. Venturi meter

Explanation: The Venturi meter operates on the principle of Bernoulli’s equation, which states that as the velocity of fluid increases, the pressure decreases.

Which of the following flow measurement devices is commonly used to measure the flow of high-viscosity fluids?

a. Coriolis flow meter
b. Turbine flow meter
c. Positive displacement flow meter
d. Vortex flow meter

Answer: c. Positive displacement flow meter

Explanation: Positive displacement flow meters are ideal for measuring the flow of high-viscosity fluids such as oil, syrup, and honey.

Which of the following flow measurement devices is suitable for measuring the flow rate of corrosive fluids?

a. Magnetic flow meter
b. Turbine flow meter
c. Vortex flow meter
d. Thermal flow meter

Answer: a. Magnetic flow meter

Explanation: Magnetic flow meters are made of non-corrosive materials such as stainless steel, making them suitable for measuring the flow rate of corrosive fluids.

Which of the following flow measurement devices uses the principle of Faraday’s law of electromagnetic induction?

a. Coriolis flow meter
b. Turbine flow meter
c. Magnetic flow meter
d. Vortex flow meter

Answer: c. Magnetic flow meter

Explanation: Magnetic flow meters use the principle of Faraday’s law of electromagnetic induction to measure the flow rate of conductive fluids.

Which of the following flow measurement devices is suitable for measuring the flow rate of dirty fluids?

a. Magnetic flow meter
b. Turbine flow meter
c. Vortex flow meter
d. Thermal flow meter

Answer: b. Turbine flow meter

Explanation: Turbine flow meters are suitable for measuring the flow rate of dirty fluids as they have no moving parts that can be clogged.

Which of the following flow measurement devices can measure both flow rate and fluid density?

a. Coriolis flow meter
b. Turbine flow meter
c. Positive displacement flow meter
d. Vortex flow meter

Answer: a. Coriolis flow meter

Explanation: Coriolis flow meters can measure both flow rate and fluid density, making them ideal for applications where both parameters are important.

Which flow meter uses the principle of a rotating paddle?

a) Turbine flow meter
b) Positive displacement flow meter
c) Vortex flow meter
d) Paddlewheel flow meter

Answer: d) Paddlewheel flow meter

Explanation: The paddlewheel flow meter operates based on the principle of a rotating paddle or wheel that is placed perpendicular to the flow direction. As the fluid passes through the pipe, the paddle is rotated, and the speed of rotation is proportional to the flow rate. The sensor attached to the paddle detects the rotation and provides an output signal proportional to the flow rate.

Which of the following flow meters is not a type of differential pressure flow meter?

a) Orifice flow meter
b) Venturi flow meter
c) Electromagnetic flow meter
d) Pitot tube flow meter

Answer: c) Electromagnetic flow meter

Explanation: Orifice, Venturi, and Pitot tube flow meters are examples of differential pressure flow meters. They work based on the principle that the pressure drop across a restriction in the flow path is proportional to the square of the flow rate. Electromagnetic flow meters, on the other hand, operate based on Faraday’s law of electromagnetic induction and do not require any obstruction in the flow path.

Which of the following flow meters is most suitable for measuring the flow rate of gas streams?

a) Positive displacement flow meter
b) Thermal flow meter
c) Coriolis flow meter
d) Ultrasonic flow meter

Answer: b) Thermal flow meter

Explanation: Thermal flow meters are most suitable for measuring the flow rate of gas streams. They work based on the principle that the rate of heat transfer from a heated element to the flowing fluid is proportional to the mass flow rate. The heated element can be a thermistor, RTD, or a thin-film heater. Positive displacement, Coriolis, and Ultrasonic flow meters are better suited for measuring the flow rate of liquids.

Which of the following flow measurement methods is based on the principle of fluid momentum?

a) Differential pressure flow measurement
b) Turbine flow measurement
c) Electromagnetic flow measurement
d) Ultrasonic flow measurement

Answer: a) Differential pressure flow measurement

Explanation: Differential pressure flow measurement is based on the principle of fluid momentum. It involves measuring the pressure drop across a constriction in the pipe to determine the flow rate.

Which of the following flow measurement methods is best suited for measuring low flow rates?

a) Differential pressure flow measurement
b) Positive displacement flow measurement
c) Turbine flow measurement
d) Ultrasonic flow measurement

Answer: b) Positive displacement flow measurement

Explanation: Positive displacement flow measurement is best suited for measuring low flow rates because it directly measures the volume of fluid passing through the flowmeter.

Which of the following flow measurement methods requires a fluid with high electrical conductivity?

a) Differential pressure flow measurement
b) Positive displacement flow measurement
c) Turbine flow measurement
d) Electromagnetic flow measurement

Answer: d) Electromagnetic flow measurement

Explanation: Electromagnetic flow measurement requires a fluid with high electrical conductivity to generate a measurable voltage signal across the electrodes.

Which of the following flow measurement methods is based on the principle of the Doppler effect?

a) Differential pressure flow measurement
b) Positive displacement flow measurement
c) Turbine flow measurement
d) Ultrasonic flow measurement

Answer: d) Ultrasonic flow measurement

Explanation: Ultrasonic flow measurement is based on the principle of the Doppler effect. It involves measuring the frequency shift of sound waves reflected off particles in the flow stream to determine the flow rate.

Which of the following flow measurement methods is best suited for measuring the flow rate of slurries or non-Newtonian fluids?

a) Differential pressure flow measurement
b) Positive displacement flow measurement
c) Turbine flow measurement
d) Electromagnetic flow measurement

Answer: b) Positive displacement flow measurement

Explanation: Positive displacement flow measurement is best suited for measuring the flow rate of slurries or non-Newtonian fluids because it directly measures the volume of fluid passing through the flowmeter.

Which of the following is not a type of flowmeter?

a) Turbine flowmeter
b) Venturi flowmeter
c) Thermocouple
d) Electromagnetic flowmeter

Answer: c) Thermocouple

Explanation: Thermocouples are used to measure temperature, not flow.

Which of the following flowmeters is known for its high accuracy and reliability?

a) Positive displacement flowmeter
b) Vortex flowmeter
c) Magnetic flowmeter
d) Thermal flowmeter

Answer: c) Magnetic flowmeter

Explanation: Magnetic flowmeters are highly accurate and reliable due to their non-intrusive design and lack of moving parts.

Which of the following is not a type of DP flowmeter?

a) Orifice flowmeter
b) Venturi flowmeter
c) Pitot tube flowmeter
d) Turbine flowmeter

Answer: d) Turbine flowmeter

Explanation: Turbine flowmeters do not rely on differential pressure to measure flow.

Which of the following is not a fluid property that affects flow measurement?

a) Density
b) Viscosity
c) Velocity
d) Pressure

Answer: d) Pressure

Explanation: Pressure is not a fluid property that affects flow measurement. However, it can affect the accuracy of certain flow measurement devices.

Which of the following flowmeters is known for its high turndown ratio?

a) Orifice flowmeter
b) Turbine flowmeter
c) Magnetic flowmeter
d) Vortex flowmeter

Answer: d) Vortex flowmeter

Explanation: Vortex flowmeters have a high turndown ratio, meaning they can accurately measure flow over a wide range of flow rates.

Which of the following flow meters is based on the principle of fluid acceleration?

a) Turbine flow meter
b) Orifice plate
c) Magnetic flow meter
d) Ultrasonic flow meter

Answer: b) Orifice plate

Explanation: Orifice plates use the principle of fluid acceleration to measure the flow rate of a fluid. They consist of a plate with a hole in it placed in the fluid flow. The pressure difference across the hole is proportional to the fluid flow rate.

Which of the following flow meters can measure the flow rate of slurries and abrasive fluids?

a) Magnetic flow meter
b) Ultrasonic flow meter
c) Electromagnetic flow meter
d) Coriolis flow meter

Answer: a) Magnetic flow meter

Explanation: Magnetic flow meters can measure the flow rate of slurries and abrasive fluids as they do not have any moving parts that can be damaged by the fluid. They use electrodes and a magnetic field to measure the velocity of the fluid.

Which of the following flow meters is based on the principle of measuring the change in frequency of sound waves?

A) Turbine meter
B) Magnetic flow meter
C) Coriolis flow meter
D) Ultrasonic flow meter

Answer: D

Explanation: Ultrasonic flow meters use sound waves to determine the velocity of fluid flow. The change in frequency of the sound waves is used to determine the flow rate.

Which of the following flow meters is not a volumetric flow meter?

A) Turbine flow meter
B) Vortex flow meter
C) Magnetic flow meter
D) Coriolis flow meter

Answer: D

Explanation: Coriolis flow meters are not volumetric flow meters because they measure mass flow rate rather than volume flow rate.

Which of the following flow meters is based on the principle of measuring the change in the angular velocity of a fluid?

A) Turbine flow meter
B) Vortex flow meter
C) Magnetic flow meter
D) Coriolis flow meter

Answer: B

Explanation: Vortex flow meters are based on the principle of measuring the change in the angular velocity of a fluid.

Which of the following flow measurement technologies is based on the principle of heat transfer?

a. Magnetic flowmeter
b. Coriolis flowmeter
c. Thermal flowmeter
d. Ultrasonic flowmeter

Answer: c. Thermal flowmeter

Explanation: Thermal flowmeters measure the rate of heat transfer from a heated element to the fluid flowing past it. As the fluid flows, it carries heat away from the element, reducing its temperature. By measuring the temperature difference between the heated element and the fluid, the flow rate can be calculated.

Read Next:

  • Control Valves Quiz Questions
  • Process Control Test Questions
  • HART Communicator Questions
  • Level Measurement Questions
  • Pressure Transmitter MCQ Questions

You Might Also Like

Orifice Plate Questions and Answers

Sensors and Transducers Objective Questions and Answers

Electrical Switches Objective Questions and Answers

14 Valve Questions

Resistance Temperature Detector (RTD) Questions and Answers

TAGGED: Flow Measurement, Flow Measurement MCQ, Flow Measurement Questions, Flow Measurement Quiz, Instrumentation, Instrumentation MCQ, Instrumentation Objective Questions, Instrumentation Questions, Instrumentation Quiz

Sign Up For Daily Newsletter

Be keep up! Get the latest breaking news delivered straight to your inbox.
[mc4wp_form]
By signing up, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time.
Share This Article
Facebook Twitter Whatsapp Whatsapp LinkedIn
Share
Previous Article Level Measurement Multiple-Choice Questions and Answers Level Measurement Multiple-Choice Questions and Answers
Next Article Temperature Measurement Objective Questions and Answers Temperature Measurement Objective Questions and Answers
Leave a comment Leave a comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

120.5k Followers Like
10.1k Followers Follow
90.6k Subscribers Subscribe

Latest Articles

Orifice Plate
Orifice Plate Questions and Answers
Instrumentation June 5, 2023
Sensors and Transducers Objective Questions and Answers
Sensors and Transducers Objective Questions and Answers
Instrumentation Control Systems PLC June 4, 2023
Cybersecurity Questions and Answers
Cybersecurity Questions and Answers
Control Systems PLC June 3, 2023
Electrical Motors Multiple-Choice Questions
50 Electrical Motors Multiple-Choice Questions
Electrical June 2, 2023
Steam Turbine Driven Pump Trip
CompetitionControl ValvesInstrumentation

Steam Turbine Driven Pump Trip on Close Feedback of Inlet Valve

Root Cause Analysis on Steam Turbine Driven Pump Tripping on Close Feedback…

Vicky By Vicky February 27, 2023
Cylinder Forward PLC Connection and Logic
PLCCompetition

Hydraulic Clamping System using PLC Ladder Logic

Learn about the Hydraulic clamping system and circuit with the help of…

K Mugunthan By K Mugunthan February 28, 2023
Basics of Distributed Control Systems
Control Systems

Understanding the Basics of Distributed Control Systems

A distributed control system (DCS) is a control system for a process…

Editorial Staff By Editorial Staff January 22, 2023
Top Essential Devices for Electrical Switchgear
Electrical

Top Essential Devices in Electrical Switchgear – List

This article provides a list of the top essential devices commonly used…

Vivek By Vivek May 3, 2023
PLC Wiring connection
PLCCompetition

Pneumatic Press Machine Operation with Siemens PLC

Learn the Pneumatic Press Machine operation with Siemens PLC and the wiring…

K Mugunthan By K Mugunthan March 31, 2023
Difference Between PLC and Relay
PLC

Difference Between PLC and Relay

In this article, you will learn the basic difference between PLC and…

Editorial Staff By Editorial Staff January 18, 2023
Show More
//

We provide resoucres to million users and we are the number one business and industrial automation news network on the planet

Quick Link

  • Customize Interests
  • My Bookmarks

Top Categories

  • PLC
  • Control Systems
  • Instrumentation

Sign Up for Our Newsletter

Subscribe to our newsletter to get our newest articles instantly!

[mc4wp_form id=”847″]

Follow US
© 2023 All Rights Reserved. Supported by Inst Tools.
login
Welcome Back!

Sign in to your account

Lost your password?