Yes, you can refer to textbooks from other disciplines to understand certain topics in the GATE ME syllabus. Here's why:

1. Broadening your understanding:
By referring to textbooks from other disciplines, you can gain a broader and more comprehensive understanding of certain topics in the GATE ME syllabus. This can help you develop a more holistic perspective and enhance your problem-solving skills.

2. Interdisciplinary connections:
Many topics in engineering are interconnected and draw upon principles from various disciplines. For example, thermodynamics in mechanical engineering is closely related to concepts in physics and chemistry. By referring to textbooks from other disciplines, you can explore these connections and deepen your understanding of how different principles relate to each other.

3. Different perspectives and approaches:
Different disciplines may offer alternative perspectives and approaches to solving problems. By exploring these different viewpoints, you can expand your problem-solving toolkit and find innovative solutions to complex engineering challenges.

4. Supplementary information and examples:
Textbooks from other disciplines may provide supplementary information and examples that can complement your understanding of specific topics in the GATE ME syllabus. This can be particularly useful when trying to grasp difficult concepts or when looking for real-world applications of theoretical principles.

5. Cross-disciplinary applications:
Some topics in the GATE ME syllabus have practical applications in other disciplines. For example, fluid mechanics is relevant not only to mechanical engineering but also to civil and aerospace engineering. By referring to textbooks from other disciplines, you can explore these cross-disciplinary applications and gain a deeper understanding of how the concepts are used in different contexts.

Conclusion:
Referring to textbooks from other disciplines can be a valuable supplement to your study of the GATE ME syllabus. It can broaden your understanding, help you make interdisciplinary connections, provide different perspectives and approaches, offer supplementary information and examples, and explore cross-disciplinary applications.