UPSC Engineering Services 2026 Prelims Paper II Electronics Question Paper PDF
- Year 2026
- Conducted By UPSC
- Questions 150
- Maximum Marks 300
- Duration Three Hours
- Languages English
Exam Details
| Detail | Information |
|---|---|
| Examination | Engineering Services (Preliminary) Examination |
| Year | 2026 |
| Conducting Body | UPSC |
| Paper | Paper - II Electronics and Telecommunication Engineering |
| Subject | Electronics and Telecommunication Engineering |
| Duration | Three Hours |
| Maximum Marks | 300 |
| Number of Questions | 150 |
| Question Type | Objective (MCQ) |
This is the official question paper for the UPSC Engineering Services (Preliminary) Examination 2026, Paper II, focusing on Electronics and Telecommunication Engineering. The exam is conducted by UPSC and allows three hours to answer 150 objective questions, carrying a maximum of 300 marks. This paper is crucial for aspirants seeking to qualify for the Engineering Services main examination, testing their foundational knowledge in the specified engineering discipline. Candidates are advised to carefully follow the instructions regarding OMR sheet filling and penalty for wrong answers.
Major Topics Covered
- Noise
- White Noise
- Random Variables
- Modulation
- Electronics
- Telecommunication Engineering
Why This Paper is Important
- Useful for Engineering Services (Preliminary) Exami preparation
- Helps understand the latest exam pattern
- Useful for practice and self-assessment
- Covers frequently asked General Studies topics
- Helpful for analysing question trends
Related Resources
- UPSC Engineering Services 2025 Prelims Paper II Electronics and Telecommunication Engineering Question Paper
- UPSC Engineering Services 2026 Prelims Paper I General Studies and Engineering Aptitude Question Paper
- UPSC Engineering Services 2026 Main Examination Electronics and Telecommunication Engineering Paper
- UPSC Engineering Services 2026 Prelims Paper II Electronics and Telecommunication Engineering Answer Key
- UPSC Engineering Services Examination Electronics and Telecommunication Engineering Syllabus
- UPSC ESE Prelims Syllabus
- UPSC Engineering Services Examination Pattern
- UPSC ESE Prelims Exam Pattern
Instructions
- IMMEDIATELY AFTER THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, ETC.
- IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET.
- Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test Booklet Series A, B, C or D carefully and without any omission or discrepancy at the appropriate places in the OMR Answer Sheet.
- Any omission/discrepancy will render the Answer Sheet liable for rejection.
- You have to enter your Roll Number on the Test Booklet in the Box provided alongside.
- DO NOT write anything else on the Test Booklet.
- This Test Booklet contains 150 items (questions).
- Each item comprises four responses (answers).
- You will select the response which you want to mark on the Answer Sheet.
- In case you feel that there is more than one correct response, mark the response which you consider the best.
- In any case, choose ONLY ONE response for each item.
- You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions in the Answer Sheet.
- Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your Admission Certificate.
- After you have completed filling in all your responses on the Answer Sheet and the examination has concluded, you should hand over to the Invigilator only the Answer Sheet.
- You are permitted to take away with you the Test Booklet.
- Sheets for rough work are appended in the Test Booklet at the end.
- Penalty for wrong answers : THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE.
Questions (page 2)
Q1. Consider the following statements regarding noise :
Q2.
Consider the following statements regarding white noise :
1. The white noise contains all the frequency components in equal proportion.
2. Johnson noise is an example of white noise.
3. The white noise has a Gaussian distribution.
Which of the above statements are correct?
Q3.
Consider the following statements regarding random variables :
1. A discrete random variable will have a countable number of distinct values.
2. Continuous random variable is defined for the system which generates a finite number of outcomes within a finite period of time.
Which of the above statements is/are correct?
Q4.
Consider the following statements regarding modulation :
1. Analog modulation requires lower bandwidth than that for the digital modulation methods.
2. Separation of signal from noise is not possible in analog modulation. Therefore, repeaters can be used.
3. FDM is used for multiplexing in analog modulation.
Which of the above statements are correct?
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Frequently asked questions
What is the name of the examination?
The examination is the Engineering Services (Preliminary) Examination.
Which year is this question paper for?
This question paper is for the year 2026.
Who conducts the Engineering Services Examination?
The examination is conducted by UPSC (Union Public Service Commission).
What is the subject of Paper II?
Paper II is for Electronics and Telecommunication Engineering.
What is the total duration of the examination?
The time allowed for the examination is Three Hours.
What are the maximum marks for Paper II?
The maximum marks for Paper II are 300.