Consider the following statements
For prescision machining of non – ferrous alloys, diamond is preferred because is has
1. Low coefficient of thermal expansion
2. High wear resistance
3. High compression strength
4. Low fracture toughness
Which of these statements are correct?
(a) 1 and 2 (b) 1 and 3
(c) 2 and 3 (d) 3 and 4