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GATE Mechanical 1994 Question

Subjective Type Answer by Yourself
Calculate the bite angle when rolling plates $$12mm$$ thick using work rolls $$600mm$$ diameter and reducing the thickness by $$3mm$$

GATE Mechanical 1996 Question

Signle Correct Answer
A wire of $$0.1mm$$ diameter is drawn from a rod of $$15mm$$ diameter dies giving reductions of $$20\% $$, $$40\% $$ and $$80\% $$ are available. For minimum error in the final size, the number of stages and reduction at each stage respectively would be
A
$$3$$ stages and $$80\% $$ reduction for all three stages
B
$$4$$ stages and $$80\% $$ reduction for first three stages followed by a finishing stage of $$20\% $$ reduction
C
$$5$$ stages and reduction of $$80\% $$, $$80\% $$, $$40\% $$, $$40\% $$, $$20\% $$ in sequence
D
None of the above

GATE Mechanical 1996 Question

Subjective Type Answer by Yourself

GATE Mechanical 1998 Question

Signle Correct Answer
A strip with sectional area $$150mm\,\, \times \,\,4.5mm$$ is being rolled with $$20\% $$ reduction of area using $$450mm$$ diameter rollers. The angle subtended by the deformation zone at the roll center is (in radians)
A
$$0.01$$
B
$$0.02$$
C
$$0.03$$
D
$$0.06$$

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