List of top Metallurgical Engineering Questions on Manufacturing Processes asked in GATE MT

A 200 mm thick slab is rolled using 500 mm diameter rolls under cold rolling and hot rolling conditions, separately. The coefficient of friction is 0.04 in cold rolling and 0.4 in hot rolling. The ratio of maximum possible thickness reduction in cold rolling to that in hot rolling is ................... (round off to 2 decimal places).

Match the components in Column I with corresponding manufacturing processes in Column II.
Column I
(P) Crank shaft
(Q) Machine bed
(R) Automobile brake pad
(S) Beverage can
Column II
(1) Sheet metal forming
(2) Forging
(3) Casting
(4) Powder metallurgy

Match the defects in Column I with corresponding metal forming techniques in Column II.
Column I
(P) Cold shut
(Q) Zipper breaks
(R) Stretcher strains
(S) Center burst
Column II
(1) Rolling
(2) Sheet metal forming
(3) Drawing
(4) Forging

In rolling, the point on the surface of contact between roll and sheet where surface velocity of the roll is equal to velocity of the sheet is referred as