Consider the following modifications regarding avoiding the interference between gears:1. The centre distance between meshing gears be increased2. Addendum of the gear be modified3. Teeth should be undercut slightly at the root4. Pressure angle should be increased5. Circular pitch be increasedWhich of these are effective in avoiding interference?

Consider the following modifications regarding avoiding the interfer

1.	Consider the following modifications regarding avoiding the interference between gears:1. The centre distance between meshing gears be increased2. Addendum of the gear be modified3. Teeth should be undercut slightly at the root4. Pressure angle should be increased5. Circular pitch be increasedWhich of these are effective in avoiding interference?
A.	1,2 and 3
B.	2,3,4 and 5
C.	1,4 and 5
D.	3,4 and 5
Answer» B. 2,3,4 and 5