Preparing for the Automobile Engines and Power Transmission subject in mechanical engineering requires a strategic and focused approach. Here are some specific tips that can help you excel in this subject:

1. Understand the Basics:
To build a strong foundation, start by understanding the basics of automobile engines and power transmission. Familiarize yourself with the different types of engines, their working principles, and the components involved in power transmission systems.

2. Study the Syllabus:
Go through the syllabus thoroughly to understand the topics that will be covered in the subject. Divide the syllabus into smaller sections and create a study plan accordingly.

3. Refer to Standard Textbooks:
Utilize standard textbooks recommended by experts in the field of mechanical engineering. Some popular textbooks for this subject include "Internal Combustion Engine Fundamentals" by John Heywood and "Automotive Mechanics" by William H. Crouse.

4. Take Notes:
While studying, take detailed notes. This will help you in retaining and revising the important concepts later. Organize your notes in a manner that allows easy reference and quick revision.

5. Solve Numerical Problems:
Practice solving numerical problems related to engine performance, power transmission, and efficiency. This will enhance your problem-solving skills and improve your understanding of the subject.

6. Use Visual Aids:
Take advantage of visual aids such as diagrams, charts, and videos to understand the working mechanisms of engines and power transmission systems. Visual representations can make complex concepts easier to comprehend.

7. Review Previous Year Question Papers:
Reviewing previous year question papers will give you an idea of the type of questions that can be asked in the examination. It will also help you identify the important topics that need more focus.

8. Join Online Discussion Forums:
Participating in online discussion forums or study groups can provide you with a platform to interact with fellow students and experts. You can exchange ideas, clarify doubts, and gain additional insights into the subject.

9. Take Mock Tests:
Attempt mock tests to assess your knowledge and identify areas where you need improvement. Mock tests will also help you manage your time effectively during the actual examination.

10. Revise Regularly:
Consistent revision is key to retaining the learned concepts. Set aside dedicated time for revision and frequently revisit important topics to reinforce your understanding.

By following these tips and maintaining a disciplined study routine, you can prepare effectively for the Automobile Engines and Power Transmission subject in mechanical engineering. Remember to stay focused, practice regularly, and seek assistance whenever needed.