1
GATE PI 1991
Fill in the Blanks
+1
-0
At $${1000^ \circ }C$$ the crystallographic structure of iron is ....................
2
GATE PI 1990
MCQ (Single Correct Answer)
+1
-0.3
Semi brittle materials can be extruded by
A
impact extrusion
B
closed cavity extrusion
C
hydrostatic extrusion
D
backward extrusion
3
GATE PI 1990
Fill in the Blanks
+1
-0
While rolling a strip the peripheral velocity of the roll is ..... A .... than the entry velocity of the strip and is ...... B .... the exit velocity of the strip
A. greater / less / equal to
B. greater than / less than / equal to
4
GATE PI 1989
MCQ (Single Correct Answer)
+1
-0.3
The blank diameter used in thread rolling will be
A
Equal to the major diameter of the thread
B
Equal to the pitch diameter of the thread
C
little higher than the minor diameter of the thread
D
little higher than the pitch diameter of the thread
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