If your IGNOU BSCAEY Term End exam is scheduled for 2026 or later, the BEY 004 Question Paper December 2025 is one of the most practical revision tools you can rely on. This is the actual paper conducted by IGNOU in December 2025, which means the question style, topic spread and marks weightage match what your own exam will look like. Our solved version helps you revise modern EV and hydrogen topics with clarity, not with scattered blog posts or random videos.
About This Solved Paper
| Prepared by | Unnati Education, IGNOU-experienced academic content writer |
|---|---|
| Subject expert qualification | Graduate team with specialisation in Electric Vehicle Technology and Clean Energy Systems |
| Programme | IGNOU Bachelor of Science Applied Science Energy (BSCAEY) |
| Institution Reference | IGNOU December 2025 Term-End Examination |
You can download the BEY 004 Solved Question Paper December 2025 directly from this page as a clean PDF file. It opens on any mobile or laptop, which is useful if you are a working professional in the EV, automotive or energy sector revising in short breaks. Most BSCAEY students notice that practicing the actual paper with worked out answers and clear diagrams is far more productive than reopening every unit of the course material again.
What is BEY 004 Question Paper December 2025 Definition
The BEY-004 December 2025 question paper is the official IGNOU Term End Examination paper for Zero Emission Vehicles, conducted in December 2025 for BSCAEY students. It carries 70 marks, runs for three hours, and asks you to attempt any seven questions of equal marks, each worth 10 marks.
The paper tests how well you understand zero emission vehicle technology and its ecosystem. Questions move from EV infrastructure and renewable integration to hydrogen, fuel cells, electric drivetrain topologies, hybrid vehicle energy flow, charging compatibility, battery life, and emerging topics like green hydrogen and AI in smart mobility.
About IGNOU BEY-004 Zero Emission Vehicles
BEY 004 is a core paper in the IGNOU BSCAEY programme. It introduces you to the full landscape of zero emission mobility. The course covers emission monitoring and control, hydrogen as a fuel, electric drivetrain topologies, electric propulsion efficiency, hybrid electric vehicles, fuel cells, charging infrastructure and battery performance. Students who link each topic to real Indian EV models, FAME India, green hydrogen mission and public charging networks usually score much better in the evaluation.
BEY 004 Question Paper December 2025 Exam Pattern and Marks Breakdown (BEY-004 December 2025 Question Paper)
The paper runs for 3 hours and carries 70 marks in total. There are nine questions in the paper, and you are required to attempt any seven of them. All questions carry equal marks, which means each question is worth 10 marks. The paper does not have separate sections, so you can freely choose the seven questions you are most confident about. Question 9 offers a short notes option with four choices, of which any two need to be attempted.
All Questions BEY 004 Question Paper December 2025 IGNOU (Complete List)
Below is the full paper exactly as it appeared in the IGNOU Term End Examination December 2025. The attached PDF shows the original paper with proper engineering formatting.
Note: Attempt any seven questions. All questions carry equal marks.
Question 1 (10 marks)
(a) What roles do renewable energy sources play in improving zero emission vehicle infrastructure? (5)
(b) Why do zero emission vehicles have a higher upfront cost compared to conventional vehicles? (5)
Question 2 (10 marks)
Discuss in detail the various emission, monitoring and control techniques.
Question 3 (10 marks)
Describe in detail any five combustive properties of hydrogen.
Question 4 (10 marks)
Explain electric drive train topologies with the help of block diagrams.
Question 5 (10 marks)
Define energy efficiency in electric propulsion systems. Discuss various factors which affect the efficiency of an electric motor.
Question 6 (10 marks)
(a) How does the hybrid system switch between the electric motor and the internal combustion engine? (5)
(b) Explain the working principle of a fuel cell with the help of a neat sketch. (5)
Question 7 (10 marks)
Explain energy flow in a hybrid electric vehicle during the following driving conditions: (5+5)
(a) Acceleration
(b) Cruising
Question 8 (10 marks)
(a) Discuss the importance of charge compatibility in the EV ecosystem. (5)
(b) How does fast charging impact battery life and efficiency? (5)
Question 9 (10 marks)
Write short notes on any two of the following: (5+5)
(a) Backfire (b) Induction motor drive (c) Green hydrogen (d) Role of AI and smart systems in zero emission vehicles
BEY 004 Question Paper December 2025 Syllabus Topics Covered
The paper maps cleanly to the BEY 004 syllabus. You see the role of renewables in EV infrastructure, upfront cost analysis of zero emission vehicles, and emission monitoring and control techniques. Hydrogen topics are tested through combustive properties, backfire and green hydrogen. Electric drivetrain topologies and induction motor drives are covered under propulsion. Hybrid vehicles are tested through mode switching and energy flow during acceleration and cruising. Fuel cells, charging compatibility, fast charging effects and AI based smart systems complete the paper.
Sample Answer Preview BEY-004 Zero Emission Vehicles Solved Question Paper Explanation
Take Question 4 on electric drivetrain topologies. A weak answer just names the layouts. A scoring answer draws three clean block diagrams for series, parallel and series parallel hybrid or pure EV drive configurations. For each, it labels battery, motor, controller, gearbox and wheels, and explains power flow. It then compares them on efficiency, cost and use case. Our solved paper follows this diagram plus explanation style, which is what BSCAEY examiners reward with full marks.
How to Write High-Scoring Answers in BEY 004 Question Paper December 2025
Start each 10 mark answer with a short definition or opening paragraph. Use neat block diagrams for drivetrain, fuel cell and hybrid energy flow, because this is a diagram heavy paper. Add one Indian example wherever possible, like Tata Nexon EV for battery EVs, Ashok Leyland hydrogen bus for fuel cell vehicles, or National Green Hydrogen Mission for policy context. For short notes, stick to half a page each and include one diagram or bullet flow. Keep handwriting neat, use margins, and avoid repeating the same point across parts.
Who Should Use This BEY-004 Solved Question Paper December 2025?
This solved paper is made for IGNOU BSCAEY students appearing in June 2026, December 2026 or later Term End cycles. It also helps reappear candidates, backlog students clearing BEY 004, and working professionals from EV startups, auto OEMs, charging network companies, battery manufacturers and hydrogen firms who have joined BSCAEY as a career skill. If you are balancing shift duty, family and studies, this paper is a focused, time saving way to prepare without reopening every unit again.
Why This is Better Than Free BEY-004 December 2025 Question Paper PDFs and Telegram Files
Free PDFs on Telegram and random blog sites often have outdated answers, missing diagrams, or theory that does not match IGNOU BSCAEY style. Some files skip the hybrid energy flow question entirely. Others give one paragraph for a 10 mark drivetrain question, which will clearly not score. Our solved paper is written by a subject expert, checked against the official December 2025 paper, and formatted in proper engineering answer style with diagrams where needed. You save time and protect your marks.
Student Reviews BEY-004 Solved Question Paper by Unnati Education
Mahesh from Pune, working in an EV charging startup, said the charge compatibility and fast charging answers matched exactly what he sees in daily network deployments. Anjali from Chennai told us the hybrid vehicle energy flow diagrams for acceleration and cruising finally made the concept feel clear in her mind. Gaurav, a first time BSCAEY learner from Lucknow, wrote that the green hydrogen and AI short notes were the clearest he had read online during his full preparation cycle.
How to Get the BEY-004 Solved Question Paper December 2025 Step by Step
First, click the download button at the top of this page. Second, complete the quick checkout, it takes less than a minute. Third, the solved PDF reaches your email instantly, and it is also saved inside your Unnati Education account dashboard. Fourth, open it on phone or laptop and revise question by question. If you face any trouble with download or payment, our support team replies quickly on WhatsApp and email.
Frequently Asked Questions BEY 004 Question Paper December 2025 IGNOU
Is this the official IGNOU BEY 004 December 2025 paper?
Yes, this is the actual Term End Examination paper conducted by IGNOU in December 2025 for BEY 004 under the Bachelor of Science Applied Science Energy BSCAEY programme. Every question on this page is reproduced exactly as it appeared in the official paper, which makes it a reliable source for your 2026 exam preparation and for any future Term End attempt you may plan later in your studies.
Will this paper help me for my 2026 exam?
It will help you strongly. IGNOU often repeats question themes in BEY 004, especially on electric drivetrain topologies, fuel cells, hybrid energy flow, hydrogen properties, EV charging and the role of AI in zero emission vehicles. By practicing the December 2025 paper with solved answers, you understand the examiner style, the expected length for a 10 mark question, and how to structure diagram based answers for full marks in your own Term End exam.
Are diagrams included for drivetrain, fuel cell and hybrid flow?
Yes. Since BEY 004 is a diagram heavy paper, our solved PDF includes clean, labelled block diagrams for electric drivetrain topologies in Question 4, fuel cell working principle in Question 6, and energy flow in hybrid vehicles during acceleration and cruising in Question 7. Each diagram is followed by a clear written explanation, so you can understand the concept fully and reproduce a neat sketch during your own Term End exam with confidence.
Can I use this for my BEY 004 assignment too?
You can use it as a strong reference while writing your BEY 004 assignment, especially on topics like electric drivetrain, fuel cells, hybrid systems, EV charging and green hydrogen. We recommend you rewrite the ideas and redraw the diagrams in your own style, because IGNOU checks BSCAEY assignments for originality. Treat this solved paper as a study guide and a model answer set, not a direct copy source for your final assignment submission in this subject.
Is the download instant after payment?
Yes, delivery is instant. Once your payment is confirmed, the BEY 004 solved question paper PDF is sent to your registered email and also saved inside your Unnati Education account dashboard. You can open it on mobile, tablet or laptop, and there is no limit on how many times you download, print or revise the paper during your BSCAEY preparation journey in any upcoming Term End exam cycle across years.
About Unnati Education IGNOU Study Material Experts
Unnati Education is an academic resource platform built for IGNOU students across India. Our team includes graduates, postgraduates, engineers and subject mentors who have personally handled IGNOU coursework. We prepare solved question papers, handwritten assignments and revision notes in student friendly language. Our focus is simple, we want you to stop depending on unreliable free files and start preparing with material you can actually trust during your exam cycle.
Explore More IGNOU BEY-004 Solved Papers and Study Material
You can also explore BEY 004 solved assignments, previous year question papers from June and December cycles, important questions lists, and short revision notes on our website. Together, these resources give you a complete preparation package for Zero Emission Vehicles, from the first reading of the course to your final revision the night before your IGNOU BSCAEY Term End examination in any upcoming session.