Choose the best correct answer for each of the following a I

Choose the best correct answer for each of the following: a. Is a copper tin alloy b. Is a copper ziric alloy c. Is a wrought alloy d. Both a and C e.Both b and c 2. Superalloys: Widely used in aircraft turbine.applications b. Are classified according to the predominant metal in the alloy c. Are classified according to their density d. Both a and b e. Both a and c 3. The mer structure in the right hand side is for: a. PTFE polymer b; Polystyrene polymer c. PVC polymer:(d) Polyethylene polymer e. None of the above

Solution

The answers are

1. b

2. d

3. e