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1
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
Cutting speed in grinding is set to a high value to
A
Reduce the cutting time
B
Increase the bond strength
C
Improve cooling of job and wheel
D
Reduce the wheel wear
2
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
The standard specification of a grinding wheel is $$A-46-M-6-V-21.$$ It means a wheel of
A
Aluminium oxide of mesh size $$6$$
B
Boron carbide of mesh size $$46$$
C
Aluminium oxide of mesh size $$46$$
D
Silicon carbide of mesh size $$6$$
3
GATE ME 1988
Fill in the Blanks
+1
-0
In twist drills ......... (small/large) point angle and ........ (small/large) helix angle are provided for drilling soft, low strength steel.
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