Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Dissolved Oxygen Analyzer Questions and Answers
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Multiple Choice Questions > Dissolved Oxygen Analyzer Questions and Answers

Dissolved Oxygen Analyzer Questions and Answers

Last updated: November 27, 2021 5:36 pm
Editorial Staff
Multiple Choice Questions
No Comments
Share
4 Min Read
SHARE

Dissolved Oxygen Analyzer Questions and Answers

1. Which of the following transducers must be used for dissolved oxygen analyser?

a) Potentiometric
b) Polarographic
c) Ion-selective electrode
d) Optical transducer

Answer: b

Explanation: Polarographic transducer must be used for dissolved oxygen analyser. Dissolved oxygen is the measure of ability of water to sustain aquatic life.

2. How does solubility of oxygen in water change with respect to temperature?

a) It decreases with increase in temperature
b) It increases with increase in temperature
c) It decreases with decrease in temperature
d) It does not depend on temperature

Answer: a

Explanation: Solubility of oxygen in water decreases with increase in temperature. Dissolved oxygen is the measure of ability of water to sustain aquatic life.

3. The water to be analysed flows into the condenser through which of the following components?

a) Filter
b) Semi-permeable membrane
c) Throttling device
d) Platinum filament

Answer: c

Explanation: The water to be analysed flows into the condenser through a throttling device. It is cooled in the condenser.

4. Which of the following is the function of the throttling device?

a) Filtering
b) Maintains pH of water
c) Purifies water
d) Maintains constant flow rate

Answer: d

Explanation: The function of the throttling device is to maintain a constant flow rate. The water then passes into the condenser.

5. Which of the following section plays a major role in maintaining the accuracy of the dissolved oxygen analyser?

a) Analysing section
b) Inlet section
c) Transmitting section
d) Condensing section

Answer: c

Explanation: Transmitting section plays a major role in maintaining the accuracy of the dissolved oxygen analyser. It is the section after the analysing section.

6. Which of the following bridges are used in dissolved oxygen analyser?

a) Kelvin’s bridge
b) Wheatstone bridge
c) Schering’s bridge
d) Anderson’s bridge

Answer: b

Explanation: Wheatstone bridge is used in dissolved oxygen analyser. Initially, the bridge is in balanced condition.

7. In dissolved oxygen analyser, the electrometer consists of which of the following solutions?

a) Calcium hydroxide solution
b) Magnesium hydroxide solution
c) Potassium hydroxide solution
d) Calcium oxide solution

Answer: c

Explanation: In dissolved oxygen analyser, the electrometer consists of potassium hydroxide solution. It produces hydrogen due to electrolysis process.

8. The dissolved oxygen analyser is based on which of the following meters?

a) Amperometer
b) Katharometer
c) pH meter
d) Voltmeter

Answer: b

Explanation: The dissolved oxygen analyser is based on katharometer. It works on the principle of thermal conductivity detector.

9. Oxygen content can be controlled by adding which of the following materials with water?

a) Acidic solution
b) Basic solution
c) Iodine
d) Hydrazine

Answer: d

Explanation: Oxygen content can be controlled by adding hydrazine with water. It is important to maintain dissolved oxygen content in boilers to reduce corrosion.

10. In dissolved oxygen analyser, normally more than one condenser is used.

a) True
b) False

Answer: a

Explanation: In dissolved oxygen analyser, normally more than one condenser is used. The condensers are present in the condenser section.

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

High Pressure Liquid Chromatography Questions & Answers
Operation of Chromatography Questions & Answers
Special Designs of Ion Selective Electrodes Questions & Answers
Stepper Motor MCQ
Electron Probe Microanalyser Questions & Answers
Measurement and Instrumentation Objective Questions – Part 2
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

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

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Feedforward Control Questions and Answers
Top 100 Control Systems Objective Questions & Answers
Solution of State Equations
Time Response of Second Order Systems – IV
Necessary Conditions for Stability & Non-Linear Systems
Ammonia and Fluoride Electrode Questions & Answers
Effect of Adding a Zero to a System – II
Nitrogen Oxides Questions & Answers

Keep Learning

Frequency Response MCQ

All-pass & Minimum-phase Systems

Flame Emission Photometers Questions & Answers

Flame Emission Photometers Questions & Answers

Flow Measurement Questions

MCQ on Flow Measurement

Nuclear Magnetic Resonance Spectrometer Questions and Answers

Continuous Wave NMR Spectroscopy Questions & Answers

Induction Motor Interview Questions Answers

Electrical Measurements and Instrumentation Objective Questions & Answers

Actuators Questions and Answers

Actuators Questions and Answers

Advances in Control System

Adaptive Control

Instrumentation Diagrams Multiple Choice Questions

Instrumentation Diagrams Multiple Choice Questions

Learn More

Types of Sensors Used in Automobiles

Types of Sensors Used in Automobiles

Instrumentation Dictionary

Instrumentation Dictionary

What is Chemical Vapor Deposition

What is Chemical Vapor Deposition? – The Ultimate Guide

Orifice Construction

How does an Orifice Measures Flow?

PLC offline data of a project are compared

Compare Two Offline PLC Projects

Pirani Gauge Working Principle

Pirani Gauge Working Principle

Sprocket Assembly and Bolting Segments

Bucket elevators Chain and teeth wear Problems

The Top Services a Great B2B Agency Offers

The Top Services a Great B2B Agency Offers

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?