1
GATE PI 2006
MCQ (Single Correct Answer)
+2
-0.6
It is required to punch a hole of diameter $$10mm$$ on a sheet of thickness $$3mm.$$ The shear strength of the work material is $$420Mpa.$$ The required punch force is
A
$$19.78$$ $$kN$$
B
$$39.56$$ $$kN$$
C
$$98.9$$ $$kN$$
D
$$395.6$$ $$kN$$
2
GATE PI 2006
MCQ (Single Correct Answer)
+2
-0.6
A work piece of $$1000$$ $$mm$$ length and $$300$$ $$mm$$ width is machined by planning operation with a feed of $$0.3$$ $$mm/stroke.$$ The machine tool executes $$10$$ double strokes per minute. The planning time for a single pass is

A
$$50$$ $$min$$
B
$$100$$ $$min$$
C
$$166.66$$ $$min$$
D
$$333.33$$ $$min$$
3
GATE PI 2006
MCQ (Single Correct Answer)
+2
-0.6
A gear with $$84$$ teeth is to be machined using a milling process with indexing. The index plate has the following four hole circles: $$36,38, 42., 48.$$ The change gear ratio required is
A
$$8/21$$
B
$$10/21$$
C
$$21/10$$
D
$$21/8$$
4
GATE PI 2006
MCQ (Single Correct Answer)
+2
-0.6
Match the items in Group - $${\rm I}$$ and $${\rm I}$$ $${\rm I}$$ GATE PI 2006 Metal Forming - Sheet Metal Forming Processes Question 9 English
A
$$P - 3,\,\,Q - 4,\,\,R - 2,\,\,S - 1$$
B
$$P - 4,\,\,Q - 4,\,\,R - 1,\,\,S - 2$$
C
$$P - 2,\,\,Q - 3,\,\,R - 4,\,\,S - 1$$
D
$$P - 2,\,\,Q - 1,\,\,R - 4,\,\,S - 3$$
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