1
GATE ME 1987
Fill in the Blanks
+1
-0
In forging operation the sticking friction condition occurs near the ...... (Center/ ends) while sliding friction condition occurs near the ...... (Center / ends)
2
GATE ME 1987
MCQ (Single Correct Answer)
+1
-0.3
Cutting tools are provided with large positive rake angle mainly for
A
Increasing the strength of the cutting edge
B
Avoiding rubbing action with the finished surfaces
C
Reducing the magnitude of the cutting force
D
Better heat dissipation
3
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
A
Decreases by $$50\% $$
B
Increases by $$300\% $$
C
Increases by $$100\% $$
D
Remain unaffected
4
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.
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Medical
NEET
Graduate Aptitude Test in Engineering
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