engineering recuitment BHEL Engineer Trainee Mock Test 2025 Engineering Materials Science Structure and Properties of Engineering Materials Classification of Materials
Consider the following statements regarding nano-materials.
1. They have a large fraction of surface atoms.
2. They have high surface energy.
3. They have large imperfections compare to the bulk material.
4. They are used in fuel cells.
Out of these statements:
1
1, 2, 3 are correct
2
1, 2, 4 are correct
3
1, 4 are correct
4
1, 2, 3, 4 are correct