1. . In casting shop portable grinder is used for operation
(A) Fettling
(B) Cutting
(C) Finishing
(D) None of them
2. . Tumbling barrel is used for cleaning of ------ casting
(A) Small
(B) Non-ferrous
(C) Heavy
(D) Large
3. . Burnt sand is removed from casting surface with
(A) Chisel
(B) Grinder
(C) Wire brush
(D) Gas torch
4. . In shot blasting for cleaning the casting surface -------- is used.
(A) Steel shots
(B) Grit
(C) Sand particles
(D) Air
5. . The process in which sand is mixed with water and pushed by water pressure
(A) Hydro blasting
(B) Sand blasting
(C) Shot blasting
(D) Tumbling