1
GATE ME 2000
MCQ (Single Correct Answer)
+1
-0.3
Abrasive material used in grinding wheel selected for grinding ferrous alloys is
A
$$SiC$$
B
diamond
C
$$A{l_2}{O_3}$$
D
boron carbide
2
GATE ME 2000
MCQ (Single Correct Answer)
+1
-0.3
Deep hole drilling of small diameter, say $$0.2$$ $$mm$$ is done with $$EDM$$ by selecting the tool material as
A
copper wire
B
tungsten wire
C
brass wire
D
tungsten carbide
3
GATE ME 1997
MCQ (Single Correct Answer)
+1
-0.3
Helix angle of fast helix drill is normally
A
$${35^ \circ }$$
B
$${60^ \circ }$$
C
$${90^ \circ }$$
D
$${5^ \circ }$$
4
GATE ME 1996
MCQ (Single Correct Answer)
+1
-0.3
The rake angle in drill
A
Increases from center to periphery
B
Decreases from center to periphery
C
Remains constant
D
Is irrelevant to the drilling operation.
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Turbo Machinery
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