1. . Grinding wheels of soft grade are used for
(A) nonmetals
(B) soft metal
(C) hard metal
(D) very soft metals
2. . Hard grade grinding wheels are considered good for
(A) plastics
(B) soft metal
(C) hard metal
(D) very soft metals
3. . Abrasive grain from number 10-24 are
(A) medium
(B) coarse
(C) fine
(D) very fine
4. . Grinding wheel of silicon carbide (SiC) is good for
(A) ferrous metal
(B) nonferrous metals
(C) High Speed Steel
(D) tool steel
5. . The material that is used to keep the abrasive particles intact is
(A) grit
(B) grade
(C) quartz
(D) bond
6. . Recommended bond for making cutting disc is
(A) shellac
(B) vitrified
(C) rubber
(D) resinoid
7. . Which type of grinding wheels are good for snagging operation?
(A) cylindrical type
(B) straight cup type
(C) dish type
(D) tapered type
8. . The strength to hold the abrasive together is known as
(A) bond
(B) grade
(C) structure
(D) all of above
9. . Which type of abrasive quartz is?
(A) artificial
(B) natural
(C) manufactured
(D) synthetic
10. . Almost 75% grinding wheels are made with bond
(A) shellac
(B) rubber
(C) vitrified
(D) resinoid
11. . Which of the following grade is the hardest one?
(A) A
(B) E
(C) H
(D) Z
12. . When dull abrasive particles remains stuck to the grinding wheel
(A) loading
(B) glazing
(C) dressing
(D) truing
13. . Heavy duty grinding wheels are made with bond
(A) shellac
(B) rubber
(C) vitrified
(D) resinoid
14. . Preferred grinding wheel for cemented carbide tips is
(A) diamond
(B) silicon carbide
(C) both a&b
(D) none of above
15. . Silicate bond grinding wheels are used for grinding
(A) drills
(B) reamers
(C) milling cutters
(D) all of above