Haryana AUE-02 2025 Lecturer Auto Engg Paper
- Year 2025
- Conducted By Haryana Government
- Questions 15
- Maximum Marks 150
- Duration 3 Hours
Exam Details
| Detail | Information |
|---|---|
| Examination | Lecturer in Automobile Engineering |
| Year | 2025 |
| Conducting Body | Haryana Government |
| Paper | Question Paper |
| Subject | Automobile Engineering |
| Duration | 3 Hours |
| Maximum Marks | 150 |
| Number of Questions | 15 |
This entry aggregates Page 1 OCR data (exam header, instructions, duration, and marks) with Page 2 repaired questions for the Haryana Government Lecturer in Automobile Engineering exam. Page 1 identifies the paper as AUE-02 (2025) with 3 hours duration and 150 marks; it notes two-language instructions (Hindi/English) and that all questions are compulsory (15 total). Page 2 provides repaired questions: Q1, a comprehensive mechanical design problem on cam followers and a valve spring with specific material properties, fall-off conditions, and spring index; and a sub-question addressing emissions. Q2(a) discusses emissions of CO, NOx, and UHCs in SI and CI engines. The combined content informs topics such as cam mechanisms, valve-spring design, materials science, and emissions fundamentals suitable for SEO enrichment.
Major Topics Covered
- Cam mechanisms
- Follower dynamics
- Camshaft
- Valve spring design
- Spring index
- Wire diameter
- Mean coil diameter
- Number of turns
- Free length
- End plates and load conditions
- Material properties: Chrome-vanadium steel, ASTM232
- Yield strength (800 MPa)
- Elastic modulus (208 GPa)
- Poisson's ratio (0.3)
- Spring surge
- Emissions fundamentals
- Air-fuel ratio
- Ignition timing
- Engine load
- SI vs CI engines
Why This Paper is Important
- Useful for Lecturer in Automobile Engineering 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
Instructions
- Lect. in Butomobile Empy. Adul. No. 74/2024 AUE-02 CANDIDATE COPY \sim 2025 Roll No. od di a tosolidi odi concol sel di macche ce me garma an 11 008 bas 14 008 norverso sories nati concl a ditor ghings no excremo lastical Time: 3 hours Maximum Marks: 150 समय: 3 घंटे अधिकतम अंक: 150
- प्रश्न पत्र के लिए विशिष्ट अनुदेश (Please read the following instructions carefully before attempting questions) (कृपया प्रश्नों का उत्तर देने से पहले निम्नलिखित निर्देशों को ध्यान से पढ़ें) There are fifteen (15) questions in all.
- कुल पंद्रह (15) प्रश्न है। All questions are compulsory.
- सभी प्रश्न अनिवार्य हैं। No extra/additional sheet will be provided.
- कोई अतिरिक्त / विशेष शीट प्रदान नहीं की जाएगी। Answer must be written in the authorized medium.
- No marks will be given for
- answers written in a medium other than the authorized one. उत्तर अधिकृत माध्यम में ही लिखना होगा। अधिकृत माध्यम के अलावा किसी अन्य माध्यम में लिखे गए उत्तरों के लिए कोई अंक नहीं दिए जाएंगे। All questions carry equal marks i.e. 10 each.
- सभी प्रश्न समान अंक वाले हैं, अर्थात प्रत्येक 10 अंक का है। Each Question should be answered within the space provided for that particular
- question. Otherwise, the answer given will not be evaluated. प्रत्येक प्रश्न का उत्तर उसके लिए निर्धारित स्थान पर ही लिखा जाए। अन्यथा, दिए गए उत्तर का मूल्यांकन नहीं किया जाएगा। AUE-02 2025 \mathbf{1} as 10-RUA
Questions (page 2)
Q0. A camshaft rotates 650 rpm causing a follower to raise and lower once per revolution.
Q0.
2. (a) Explain the emissions of CO, NOx, and unburned hydrocarbons (UHCs) in spark ignition (SI) and compression ignition
(CI) engines.
Q1. AUE-02 CANDIBATE COP CANDIDATE COPY A camshaft rotates 650 rpm causing a follower to raise and lower once per revolution 1. 10 as shown in the figure below. Cam mounted on the camshaft is a concentric cam with its centre of rotation positioned off centre and located at radial distance \Delta from periphery of the cam as shown in the figure. The follower is to be held against the cam by a helical compression spring with a force that varies between 300 N and 600 N as spring length varies over a range of 25 mm. Ends of the spring are to be squared and ground. The material of spring is shot peened chrome-vanadium steel valve spring wire, ASTM232, with yield strength of 800 MPa. Elastic modulus of the spring material is 208 GPa with Poisson's ratio = 0.3. Determine a suitable combination of wire diameter, mean coil diameter, number of turns and free length of spring such that weight of the spring is minimized. Also check the design for spring surge. Consider value of spring index = 10. Assume that end plates are in contact with the spring ends and the spring force acts along the spring axis. उपराधि एको के एष मधर ISBN 6 600N erived of all berrenes the 300 N anoisses ill modil su staff t stáil an mo YE BROOKSHID LA 25 \,\mathrmmm I breaking para fiers 600 N so hrv tesna isaonitika super ovi 300 N Cam ीत साहर और छारारी न सम्पतिक हैकि n = 650 redina odi m natirez ed lama 19wanA rpm di tetito muibem a ni nettity Shaft busine unit word it is utune specie was ਇਸਦ ਦੱਤੀ ਇਕ ਰਾਂਪ ਭਾਰ ਹਜੀ ਡੰ 25 + \Delta A sa sahi m laupa vinse anoiseup liA Abab UT हैं कि ब्लिट 01 , उन्हें से संख्या ने किस लोग स्लास स्टेश कि Lessware od bisona nottasrO rion i Explain the effect of air-fuel ratio, ignition timing, and engine load on emissions
Q2.
(a) 5 of CO, NO x , and unburned hydrocarbons (UHCs) in spark ignition (SI) and १९न्छ। compression ignition
(CI) engines. AUE-02 2025 \overline2 m IMRUS
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Frequently asked questions
What is the paper code and year?
AUE-02, 2025.
How many questions are in the paper?
Fifteen questions, all compulsory.
What is the duration of the exam?
3 hours.
What is the maximum marks?
150 marks.
Which region/region-specific body conducts this exam?
Haryana Government.
What is the subject of the paper?
Automobile Engineering.