1
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is not a synthetic abrasive material
A
silicon carbide
B
aluminium oxide
C
titanium nitride
D
cubic boron nitride
2
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
The flanks of teeth of rack-type gear cutter used for cutting involute gear profiles are:
A
Cycloidal
B
Circular
C
Involute
D
Straight
3
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
The drawing shows a machined shaft. The purpose of providing rounded grooves at $$M$$ and $$N$$ is to GATE PI 2003 Machine Tools and Machining - Machining Question 21 English
A
Supply lubricating oil for bearing mounting
B
Facilitate facing operation
C
Facilitate grinding of bearing mounting surface
D
Reduce stress concentration
4
GATE PI 2001
MCQ (Single Correct Answer)
+1
-0.3
In Whitworth quick return mechanism (used in shapers) the velocity of the $$ram$$ is maximum at
A
middle of the forward stroke
B
beginning of return stroke
C
end of return stroke
D
middle of the return stroke
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Class 12