1
GATE PI 2004
MCQ (Single Correct Answer)
+1
-0.3
The cutting portion of a drill is to be welded to its shank. The process best suited for this is
A
ultrasonic welding
B
electron beam welding
C
friction welding
D
laser welding
2
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
3
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
4
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
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