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GATE Mechanical 1992 Question

Signle Correct Answer
The thickness of the blank needed to produce, by power spinning a missile cone of thickness $$1.5mm$$ and half cone angle $$30deg$$
A
$$3.0mm$$
B
$$2.5mm$$
C
$$2.0mm$$
D
$$1.5mm$$

GATE Mechanical 1996 Question

Signle Correct Answer
A $$50$$ $$mm$$ diameter disc is to be punched out from a carbon steel sheet $$1.0$$ $$mm$$ thick. The diameter of the punch should be (Take clearance as $$3\% $$ of sheet thickness)
A
$$49.925mm$$
B
$$50.00mm$$
C
$$50.075mm$$
D
none

GATE Mechanical 1999 Question

Signle Correct Answer
Identify the stress strain in the flange portion of a partially drawn cylindrical cup when deep drawing without a blank holder
A
Tensile in all three directions
B
No stress in the flange at all, because there is no blank - holder
C
Tensile stress in one direction and compressive in the other direction
D
Tensile in two directions and compressive in third direction

GATE Mechanical 2003 Question

Signle Correct Answer
A shell of $$100$$ $$mm$$ diameter and $$100$$ $$mm$$ height with the corner radius of $$0.4$$ $$mm$$ is to be produced by cup drawing. The required blank diameter is
A
$$118$$ $$mm$$
B
$$161$$ $$mm$$
C
$$224$$ $$mm$$
D
$$312$$ $$mm$$

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