Electronics and Communication Engineering (EC) 2014 GATE Paper (Set A) with solution | GATE, ISRO & IES/ESE Previous Year Solved Papers - Mechanical Engineering PDF Download

 Page 1


 
 
 
 
 
 
 
SESSION - 1 
 
 
 
 
 
 
 
 
Page 2


 
 
 
 
 
 
 
SESSION - 1 
 
 
 
 
 
 
 
 
GATE 2014: General Instructions during Examination 
1. Total duration of the GATE examination is 180 minutes. 
2. The clock will be set at the server. The countdown timer at the top right corner of 
screen will display the remaining time available for you to complete the examination. 
When the timer reaches zero, the examination will end by itself. You need not 
terminate the examination or submit your paper.   
3. Any useful data required for your paper can be viewed by clicking on the Useful 
Common Data button that appears on the screen. 
4. Use the scribble pad provided to you for any rough work. Submit the scribble pad at 
the end of the examination. 
5. You are allowed to use a non-programmable type calculator, however, sharing of 
calculators is not allowed. 
6. The Question Palette displayed on the right side of screen will show the status of 
each question using one of the following symbols:  
 
 
 
The Marked for Review status for a question simply indicates that you would like to look at 
that question again. If a question is answered, but marked for review, then the answer will 
be considered for evaluation unless the status is modified by the candidate. 
Navigating to a Question : 
7. To answer a question, do the following:  
a. Click on the question number in the Question Palette to go to that question 
directly. 
b. Select an answer for a multiple choice type question by clicking on the bubble 
placed before the 4 choices, namely A, B, C and D. Use the virtual numeric 
keypad to enter a number as answer for a numerical type question. 
c. Click on Save & Next to save your answer for the current question and then go 
to the next question. 
d. Click on Mark for Review & Next to save your answer for the current question 
and also mark it for review, and then go to the next question. 
Page 3


 
 
 
 
 
 
 
SESSION - 1 
 
 
 
 
 
 
 
 
GATE 2014: General Instructions during Examination 
1. Total duration of the GATE examination is 180 minutes. 
2. The clock will be set at the server. The countdown timer at the top right corner of 
screen will display the remaining time available for you to complete the examination. 
When the timer reaches zero, the examination will end by itself. You need not 
terminate the examination or submit your paper.   
3. Any useful data required for your paper can be viewed by clicking on the Useful 
Common Data button that appears on the screen. 
4. Use the scribble pad provided to you for any rough work. Submit the scribble pad at 
the end of the examination. 
5. You are allowed to use a non-programmable type calculator, however, sharing of 
calculators is not allowed. 
6. The Question Palette displayed on the right side of screen will show the status of 
each question using one of the following symbols:  
 
 
 
The Marked for Review status for a question simply indicates that you would like to look at 
that question again. If a question is answered, but marked for review, then the answer will 
be considered for evaluation unless the status is modified by the candidate. 
Navigating to a Question : 
7. To answer a question, do the following:  
a. Click on the question number in the Question Palette to go to that question 
directly. 
b. Select an answer for a multiple choice type question by clicking on the bubble 
placed before the 4 choices, namely A, B, C and D. Use the virtual numeric 
keypad to enter a number as answer for a numerical type question. 
c. Click on Save & Next to save your answer for the current question and then go 
to the next question. 
d. Click on Mark for Review & Next to save your answer for the current question 
and also mark it for review, and then go to the next question. 
Caution: Note that your answer for the current question will not be saved, if you navigate 
to another question directly by clicking on a question number without saving the answer to 
the previous question. 
You can view all the questions by clicking on the Question Paper button. This feature is 
provided, so that if you want you can just see the entire question paper at a glance. 
Answering a Question : 
8. Procedure for answering a multiple choice (MCQ) type question:  
a. Choose one answer from the 4 options (A,B,C,D) given below the question, 
click on the bubble placed before the chosen option.  
b. To deselect your chosen answer, click on the bubble of the chosen option again 
or click on the Clear Response button. 
c. To change your chosen answer, click on the bubble of another option. 
d. To save your answer, you MUST click on the Save & Next button. 
9. Procedure for answering a numerical answer type question:  
a. To enter a number as your answer, use the virtual numerical keypad. 
b. A fraction (e.g. -0.3 or -.3) can be entered as an answer with or without '0' 
before the decimal point. As many as four decimal points, e.g. 12.5435 or 
0.003 or -932.6711 or 12.82 can be entered.  
c. To clear your answer, click on the Clear Response button. 
d. To save your answer, you MUST click on the Save & Next button 
10.  To mark a question for review, click on the Mark for Review & Next button. If an 
answer is selected (for MCQ) or entered (for numerical answer type) for a question 
that is Marked for Review, that answer will be considered in the evaluation unless 
the status is modified by the candidate. 
11.  To change your answer to a question that has already been answered, first select 
that question for answering and then follow the procedure for answering that type of 
question. 
12.  Note that ONLY Questions for which answers are saved or marked for review after 
answering will be considered for evaluation. 
 
Choosing a Section :  
13. Sections in this question paper are displayed on the top bar of the screen. Questions 
in a Section can be viewed by clicking on the name of that Section. The Section you 
are currently viewing will be highlighted. 
14.  A checkbox is displayed for every optional Section, if any, in the Question Paper. To 
select the optional Section for answering, click on the checkbox for that Section. 
15.  If the checkbox for an optional Section is not selected, the Save & Next button and 
the Mark for Review & Next button will NOT be enabled for that Section. You will 
Page 4


 
 
 
 
 
 
 
SESSION - 1 
 
 
 
 
 
 
 
 
GATE 2014: General Instructions during Examination 
1. Total duration of the GATE examination is 180 minutes. 
2. The clock will be set at the server. The countdown timer at the top right corner of 
screen will display the remaining time available for you to complete the examination. 
When the timer reaches zero, the examination will end by itself. You need not 
terminate the examination or submit your paper.   
3. Any useful data required for your paper can be viewed by clicking on the Useful 
Common Data button that appears on the screen. 
4. Use the scribble pad provided to you for any rough work. Submit the scribble pad at 
the end of the examination. 
5. You are allowed to use a non-programmable type calculator, however, sharing of 
calculators is not allowed. 
6. The Question Palette displayed on the right side of screen will show the status of 
each question using one of the following symbols:  
 
 
 
The Marked for Review status for a question simply indicates that you would like to look at 
that question again. If a question is answered, but marked for review, then the answer will 
be considered for evaluation unless the status is modified by the candidate. 
Navigating to a Question : 
7. To answer a question, do the following:  
a. Click on the question number in the Question Palette to go to that question 
directly. 
b. Select an answer for a multiple choice type question by clicking on the bubble 
placed before the 4 choices, namely A, B, C and D. Use the virtual numeric 
keypad to enter a number as answer for a numerical type question. 
c. Click on Save & Next to save your answer for the current question and then go 
to the next question. 
d. Click on Mark for Review & Next to save your answer for the current question 
and also mark it for review, and then go to the next question. 
Caution: Note that your answer for the current question will not be saved, if you navigate 
to another question directly by clicking on a question number without saving the answer to 
the previous question. 
You can view all the questions by clicking on the Question Paper button. This feature is 
provided, so that if you want you can just see the entire question paper at a glance. 
Answering a Question : 
8. Procedure for answering a multiple choice (MCQ) type question:  
a. Choose one answer from the 4 options (A,B,C,D) given below the question, 
click on the bubble placed before the chosen option.  
b. To deselect your chosen answer, click on the bubble of the chosen option again 
or click on the Clear Response button. 
c. To change your chosen answer, click on the bubble of another option. 
d. To save your answer, you MUST click on the Save & Next button. 
9. Procedure for answering a numerical answer type question:  
a. To enter a number as your answer, use the virtual numerical keypad. 
b. A fraction (e.g. -0.3 or -.3) can be entered as an answer with or without '0' 
before the decimal point. As many as four decimal points, e.g. 12.5435 or 
0.003 or -932.6711 or 12.82 can be entered.  
c. To clear your answer, click on the Clear Response button. 
d. To save your answer, you MUST click on the Save & Next button 
10.  To mark a question for review, click on the Mark for Review & Next button. If an 
answer is selected (for MCQ) or entered (for numerical answer type) for a question 
that is Marked for Review, that answer will be considered in the evaluation unless 
the status is modified by the candidate. 
11.  To change your answer to a question that has already been answered, first select 
that question for answering and then follow the procedure for answering that type of 
question. 
12.  Note that ONLY Questions for which answers are saved or marked for review after 
answering will be considered for evaluation. 
 
Choosing a Section :  
13. Sections in this question paper are displayed on the top bar of the screen. Questions 
in a Section can be viewed by clicking on the name of that Section. The Section you 
are currently viewing will be highlighted. 
14.  A checkbox is displayed for every optional Section, if any, in the Question Paper. To 
select the optional Section for answering, click on the checkbox for that Section. 
15.  If the checkbox for an optional Section is not selected, the Save & Next button and 
the Mark for Review & Next button will NOT be enabled for that Section. You will 
only be able to see questions in this Section, but you will not be able to answer 
questions in the Section. 
16.  After clicking the Save & Next button for the last question in a Section, you will 
automatically be taken to the first question of the next Section in sequence. 
17.  You can move the mouse cursor over the name of a Section to view the answering 
status for that Section. 
 
Changing the Optional Section : 
 18.  After answering the chosen optional Section, partially or completely, you can change 
the optional Section by selecting the checkbox for a new Section that you want to 
attempt. A warning message will appear along with a table showing the number of 
questions answered in each of the previously chosen optional Sections and a 
checkbox against each of these Sections. Click on a checkbox against a Section that 
you want to reset and then click on the RESET button. Note that RESETTING a Section 
will DELETE all the answers for questions in that Section. Hence, if you think that you 
may want to select this Section again later, you will have to note down your answers 
for questions in that Section. If you do not want to reset the Section and want to 
continue answering the previously chosen optional Section, then click on the BACK 
button. 
 19.  If you deselect the checkbox for an optional Section in the top bar, the following 
warning message will appear: "Deselecting the checkbox will DELETE all the answers 
for questions in this Section. Do you want to deselect this Section?” If you want to 
deselect, click on the RESET button. If you do not want to deselect, click on the BACK 
button. 
 20.  You can shuffle between different Sections or change the optional Sections any 
number of times. 
 
Page 5


 
 
 
 
 
 
 
SESSION - 1 
 
 
 
 
 
 
 
 
GATE 2014: General Instructions during Examination 
1. Total duration of the GATE examination is 180 minutes. 
2. The clock will be set at the server. The countdown timer at the top right corner of 
screen will display the remaining time available for you to complete the examination. 
When the timer reaches zero, the examination will end by itself. You need not 
terminate the examination or submit your paper.   
3. Any useful data required for your paper can be viewed by clicking on the Useful 
Common Data button that appears on the screen. 
4. Use the scribble pad provided to you for any rough work. Submit the scribble pad at 
the end of the examination. 
5. You are allowed to use a non-programmable type calculator, however, sharing of 
calculators is not allowed. 
6. The Question Palette displayed on the right side of screen will show the status of 
each question using one of the following symbols:  
 
 
 
The Marked for Review status for a question simply indicates that you would like to look at 
that question again. If a question is answered, but marked for review, then the answer will 
be considered for evaluation unless the status is modified by the candidate. 
Navigating to a Question : 
7. To answer a question, do the following:  
a. Click on the question number in the Question Palette to go to that question 
directly. 
b. Select an answer for a multiple choice type question by clicking on the bubble 
placed before the 4 choices, namely A, B, C and D. Use the virtual numeric 
keypad to enter a number as answer for a numerical type question. 
c. Click on Save & Next to save your answer for the current question and then go 
to the next question. 
d. Click on Mark for Review & Next to save your answer for the current question 
and also mark it for review, and then go to the next question. 
Caution: Note that your answer for the current question will not be saved, if you navigate 
to another question directly by clicking on a question number without saving the answer to 
the previous question. 
You can view all the questions by clicking on the Question Paper button. This feature is 
provided, so that if you want you can just see the entire question paper at a glance. 
Answering a Question : 
8. Procedure for answering a multiple choice (MCQ) type question:  
a. Choose one answer from the 4 options (A,B,C,D) given below the question, 
click on the bubble placed before the chosen option.  
b. To deselect your chosen answer, click on the bubble of the chosen option again 
or click on the Clear Response button. 
c. To change your chosen answer, click on the bubble of another option. 
d. To save your answer, you MUST click on the Save & Next button. 
9. Procedure for answering a numerical answer type question:  
a. To enter a number as your answer, use the virtual numerical keypad. 
b. A fraction (e.g. -0.3 or -.3) can be entered as an answer with or without '0' 
before the decimal point. As many as four decimal points, e.g. 12.5435 or 
0.003 or -932.6711 or 12.82 can be entered.  
c. To clear your answer, click on the Clear Response button. 
d. To save your answer, you MUST click on the Save & Next button 
10.  To mark a question for review, click on the Mark for Review & Next button. If an 
answer is selected (for MCQ) or entered (for numerical answer type) for a question 
that is Marked for Review, that answer will be considered in the evaluation unless 
the status is modified by the candidate. 
11.  To change your answer to a question that has already been answered, first select 
that question for answering and then follow the procedure for answering that type of 
question. 
12.  Note that ONLY Questions for which answers are saved or marked for review after 
answering will be considered for evaluation. 
 
Choosing a Section :  
13. Sections in this question paper are displayed on the top bar of the screen. Questions 
in a Section can be viewed by clicking on the name of that Section. The Section you 
are currently viewing will be highlighted. 
14.  A checkbox is displayed for every optional Section, if any, in the Question Paper. To 
select the optional Section for answering, click on the checkbox for that Section. 
15.  If the checkbox for an optional Section is not selected, the Save & Next button and 
the Mark for Review & Next button will NOT be enabled for that Section. You will 
only be able to see questions in this Section, but you will not be able to answer 
questions in the Section. 
16.  After clicking the Save & Next button for the last question in a Section, you will 
automatically be taken to the first question of the next Section in sequence. 
17.  You can move the mouse cursor over the name of a Section to view the answering 
status for that Section. 
 
Changing the Optional Section : 
 18.  After answering the chosen optional Section, partially or completely, you can change 
the optional Section by selecting the checkbox for a new Section that you want to 
attempt. A warning message will appear along with a table showing the number of 
questions answered in each of the previously chosen optional Sections and a 
checkbox against each of these Sections. Click on a checkbox against a Section that 
you want to reset and then click on the RESET button. Note that RESETTING a Section 
will DELETE all the answers for questions in that Section. Hence, if you think that you 
may want to select this Section again later, you will have to note down your answers 
for questions in that Section. If you do not want to reset the Section and want to 
continue answering the previously chosen optional Section, then click on the BACK 
button. 
 19.  If you deselect the checkbox for an optional Section in the top bar, the following 
warning message will appear: "Deselecting the checkbox will DELETE all the answers 
for questions in this Section. Do you want to deselect this Section?” If you want to 
deselect, click on the RESET button. If you do not want to deselect, click on the BACK 
button. 
 20.  You can shuffle between different Sections or change the optional Sections any 
number of times. 
 
GATE 2014 Examination  
EC: Electronics & Communications Engineering 
Duration: 180 minutes         Maximum Marks: 100 
Read the following instructions carefully. 
 
1. To login, enter your Registration Number and password provided to you. Kindly go through the various 
symbols used in the test and understand their meaning before you start the examination.  
2. Once you login and after the start of the examination, you can view all the questions in the question 
paper, by clicking on the View All Questions button in the screen. 
3. This question paper consists of 2 sections, General Aptitude (GA) for 15 marks and the subject 
specific GATE paper for 85 marks. Both these sections are compulsory. 
The GA section consists of 10 questions. Question numbers 1 to 5 are of 1-mark each, while question 
numbers 6 to 10 are of 2-mark each.  
The subject specific GATE paper section consists of 55 questions, out of which question numbers 1 to 
25 are of 1-mark each, while question numbers 26 to 55 are of 2-mark each. 
4. Depending upon the GATE paper, there may be useful common data that may be required for 
answering the questions. If the paper has such useful data, the same can be viewed by clicking on the 
Useful Common Data button that appears at the top, right hand side of the screen.  
 
5. The computer allotted to you at the examination center runs specialized software that permits only one 
answer to be selected for multiple-choice questions using a mouse and to enter a suitable number for 
the numerical answer type questions using the virtual keyboard and mouse. 
6. Your answers shall be updated and saved on a server periodically and also at the end of the 
examination. The examination will stop automatically at the end of 180 minutes. 
7. In each paper a candidate can answer a total of 65 questions carrying 100 marks.  
8. The question paper may consist of questions of multiple choice type (MCQ) and numerical answer 
type.  
9. Multiple choice type questions will have four choices against A, B, C, D, out of which only ONE is the 
correct answer. The candidate has to choose the correct answer by clicking on the bubble ( ?) placed 
before the choice. 
10. For numerical answer type questions, each question will have a numerical answer and there will not be 
any choices. For these questions, the answer should be enteredby using the virtual keyboard that 
appears on the monitor and the mouse. 
11. All questions that are not attempted will result in zero marks. However, wrong answers for multiple 
choice type questions (MCQ) will result in NEGATIVE marks. For all MCQ questions a wrong 
answer will result in deduction of ? marks for a 1-mark question and ? marks for a 2-mark question. 
12. There is NO NEGATIVE MARKING for questions of NUMERICAL ANSWER TYPE. 
 
13. Non-programmable type Calculator is allowed. Charts, graph sheets, and mathematical tables are NOT 
allowed in the Examination Hall. You must use the Scribble pad provided to you at the examination 
centre for all your rough work. The Scribble Pad has to be returned at the end of the examination. 
 
Declaration by the candidate: 
 
“I have read and understood all the above instructions. I have also read and understood clearly the 
instructions given on the admit card and shall follow the same. I also understand that in case I am found to 
violate any of these instructions, my candidature is liable to be cancelled. I also confirm that at the start of 
the examination all the computer hardware allotted to me are in proper working condition”.