All Courses
Get the App Signup / Login
Sign in Open App
Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  Sensor & Industrial Instrumentation  >  Test: Measurement of pH - Electronics and Communication Engineering (ECE) MCQ

Test: Measurement of pH - Electronics and Communication Engineering (ECE) MCQ


Test Description

20 Questions MCQ Test Sensor & Industrial Instrumentation - Test: Measurement of pH

Test: Measurement of pH for Electronics and Communication Engineering (ECE) 2024 is part of Sensor & Industrial Instrumentation preparation. The Test: Measurement of pH questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Measurement of pH MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Measurement of pH below.
Solutions of Test: Measurement of pH questions in English are available as part of our Sensor & Industrial Instrumentation for Electronics and Communication Engineering (ECE) & Test: Measurement of pH solutions in Hindi for Sensor & Industrial Instrumentation course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Measurement of pH | 20 questions in 25 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study Sensor & Industrial Instrumentation for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Test: Measurement of pH - Question 1
Save

The hydrogen ion content in water goes from 0.203 g/L to 0.0032 g/L. How much does the pH change?

Detailed Solution for Test: Measurement of pH - Question 1
A change of 1 pH unit means that the concentration of hydrogen ions has increased (or decreased) by a factor of 10, and a change of 2 pH units means the concentration has changed by a factor of 100. The pH value is given by

pH = log10 [1/hydrogen ion concentration]

pH1 = log(1/0.203) = 0.69

pH2 = log (1/ 0.0032) = 2.495

Change in pH = 0.69 − 2.495 = −1.805

Test: Measurement of pH - Question 2
Save

Which of the following is the formula for pH calculation?

Detailed Solution for Test: Measurement of pH - Question 2
pH is defined as the negative logarithm of hydrogen ion concentration. Hence, its formula is -log10[H+].
1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Measurement of pH - Question 3
Save

Pure water is known to be which of the following?

Detailed Solution for Test: Measurement of pH - Question 3
Pure water is a weak electrolyte. It dissociates to form hydrogen ions and hydroxyl ions.
Test: Measurement of pH - Question 4
Save

Which of the following is the value of hydrogen ion concentration of pure water?
Detailed Solution for Test: Measurement of pH - Question 4
The hydrogen ion concentration of pure water is 1×107 moles/litre. It can be represented as [H+]=1×107 moles/litre.
Test: Measurement of pH - Question 5
Save

Which of the following is the relation between hydrogen and hydroxyl ion concentration of pure water?
Detailed Solution for Test: Measurement of pH - Question 5
In water, the value of hydrogen and hydroxyl ion concentrations are the same. It can be represented as [H+]=[OH-].
Test: Measurement of pH - Question 6
Save

The Nernst equation is given by which of the following statements?
Detailed Solution for Test: Measurement of pH - Question 6
The Nernst equation is represented as, E=Eo + 2.303 RT/F log CH. it is used for measuring the potential of electrodes.
Test: Measurement of pH - Question 7
Save

Which of the following is the relation between the concentration of hydrogen and hydroxyl ions in an acidic solution?
Detailed Solution for Test: Measurement of pH - Question 7
In an acidic solution, the value of hydrogen ion concentration is greater than that of hydroxyl ion concentration. It can be represented as [H+]>[OH-].
Test: Measurement of pH - Question 8
Save

Which of the following is the relation between the concentration of hydrogen and hydroxyl ions in a basic solution?
Detailed Solution for Test: Measurement of pH - Question 8
In a basic solution, the value of hydroxyl ion concentration is greater than that of hydrogen ion concentration. It can be represented as [H+]<[OH-].
Test: Measurement of pH - Question 9
Save

The measurement of hydrogen ion concentration can be made by measuring the potential developed in an electrochemical cell.
Detailed Solution for Test: Measurement of pH - Question 9
The measurement of hydrogen ion concentration can be made by measuring the potential developed in an electrochemical cell.
Test: Measurement of pH - Question 10
Save

Slope factor is independent of temperature.
Detailed Solution for Test: Measurement of pH - Question 10
Slope factor is dependent on temperature. Slope factor is given by – 2.303 RT/F.
Test: Measurement of pH - Question 11
Save

Which of the following is the simplest of pH meters?
Detailed Solution for Test: Measurement of pH - Question 11
Null-detector type pH meter is the simplest of all pH meters. It is also known as the potentiometer type.
Test: Measurement of pH - Question 12
Save

In which of the following ways can zero drift be reduced in pH meters?
Detailed Solution for Test: Measurement of pH - Question 12
Zero drift be reduced in pH meters using balanced and differential amplifiers. Their response to external signals is additive and to internal noise is subtractive.
Test: Measurement of pH - Question 13
Save

Which of the following can be used to provide automatic temperature compensation?
Detailed Solution for Test: Measurement of pH - Question 13
To provide automatic temperature compensation, thermistors must be used. As the temperature of the solution changes, the circuit constants are altered accordingly.
Test: Measurement of pH - Question 14
Save

Which of the following is not the characteristic of null-detector type pH meter?
Detailed Solution for Test: Measurement of pH - Question 14
Null-detector type pH meter has greater accuracy than 0.01 pH. pH value is read from the calibrated precision voltage source dial.
Test: Measurement of pH - Question 15
Save

Which of the following is not the characteristic of direct-reading type pH meters?
Detailed Solution for Test: Measurement of pH - Question 15
Direct reading type pH meters do not require a balancing process. Its operation is simple and readings can be read directly.
Test: Measurement of pH - Question 16
Save

Which of the following is not the characteristic of the chopper amplifier pH meter?
Detailed Solution for Test: Measurement of pH - Question 16
The use of a chopper amplifier in the pH meter leads to zero instability. It leads to various other problems for high-input resistance.
Test: Measurement of pH - Question 17
Save

In which of the following ways can the disadvantages of chopper amplifier type pH meter be overcome?
Detailed Solution for Test: Measurement of pH - Question 17
The disadvantages of chopper amplifier type pH meter can be overcome using a vibrating condenser. It is used in the place of the mechanical chopper.
Test: Measurement of pH - Question 18
Save

The zero stability of vibrating condenser amplifier type pH meter is much better than a direct-coupled amplifier.
Detailed Solution for Test: Measurement of pH - Question 18
The zero stability of vibrating condenser amplifier type pH meter is much better than a direct-coupled amplifier. The capacity can be changed by vibrating one of its plates.
Test: Measurement of pH - Question 19
Save

In vibrating condenser amplifier type pH meter, to maintain good performance which of the following has to be done?
Detailed Solution for Test: Measurement of pH - Question 19
In a vibrating condenser amplifier type pH meter, to maintain good performance, both frequency and amplitude of the vibrator should be constant and stable.
Test: Measurement of pH - Question 20
Save

Given below is the block diagram of the digital pH meter. Identify the unmarked component.
Detailed Solution for Test: Measurement of pH - Question 20
The unmarked component is an A/D converter. Microprocessor operates only on digital data. Electrodes give analog signals. Hence, the A/D converter must be present.
23 videos|24 docs|29 tests
Join Course
Information about Test: Measurement of pH Page
In this test you can find the Exam questions for Test: Measurement of pH solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Measurement of pH, EduRev gives you an ample number of Online tests for practice

Top Courses for Electronics and Communication Engineering (ECE)

Download as PDF

Top Courses for Electronics and Communication Engineering (ECE)

Important Questions for Measurement of pH

Find all the important questions for Measurement of pH at EduRev.Get fully prepared for Measurement of pH with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Measurement of pH syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Measurement of pH resources.

Measurement of pH MCQs with Answers

Prepare for the Measurement of pH within the Electronics and Communication Engineering (ECE) exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Measurement of pH Sensor & Industrial Instrumentation

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Measurement of pH with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup