1
GATE ME 1987
MCQ (Single Correct Answer)
+1
-0.3
If in a turning operation both the feed rate and the nose radius are doubled the surface finish values will be
2
GATE ME 1987
Subjective
+5
-0
During orthogonal turning of a steel rod by zero rake tool at feed $$0.25mm/rev$$ and depth of cut $$2.0mm,$$ the following observations were obtained. Tangential component of cutting force $$=1000N$$, Axial component of cutting force $$=500N,$$ chip thickness $$=1.0mm,$$ with the help of diagram determine the yield shear strength of work material under the given cutting conditions.
3
GATE ME 1987
Subjective
+5
-0
In a turning operation the tool life of the carbide tool was found to be $$20min$$ and $$100min,$$ at cutting speeds of $$120m/min$$ and $$80m/min$$ respectively. What will be the tool life of the tool under same condition but at a cutting speed of $$100m/min.$$
4
GATE ME 1987
Fill in the Blanks
+1
-0
For blanking and piercing operations, clearance is provided on the ................... and the ......................... respectively
Paper analysis
Total Questions
Fluid Mechanics
6
Machine Design
4
Production Engineering
10
Strength of Materials
2
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