Question

you need to put a metal rod into a hole in a metal cylinder. which would be the best strategy to make the rod fit
A) Heat the rod and cylinder
B) Cool the rod and cylinder
C)Heat the rod and cool the cylinder
D)Cool the rod and heat the cylinder.

Answer 1

hey your answer is option d
by hitting one part of cylinder we can easily put the rod into it.

Answer 2

your answer is option to cool the rod and hit the cylinder


by doing this method we will take one part of cylinder and will hit the part and the particular part will become melt and easily the cooled rod can easily go inside it