1
GATE ME 2014 Set 1
Numerical
+2
-0
A metal rod of initial length $${L_0}$$ is subjected to a drawing process. The length of the rod at any instant is given by the expression, $$L\left( t \right) = {L_0}\left( {1 + {t^2}} \right),$$ where $$t$$ is the time in minutes. The true strain rate (in $${\min ^{ - 1}}$$) at the end of one minute is _____________
2
GATE ME 2012
+2
-0.6
In a single pass rolling process using $$410mm$$ diameter steel rollers, a strip of width $$140mm$$ and thickness $$8mm$$ undergoes $$10\%$$ reduction of thickness. The angle of bite in radians is
A
$$0.006$$
B
$$0.031$$
C
$$0.062$$
D
$$0.600$$
3
GATE ME 2008
+2
-0.6
In a single pass rolling operation, a $$20mm$$ thick plate with plate width of $$100mm$$, is reduced to $$18mm$$ thick. The roller radius is $$250mm$$ and rotational speed is $$10$$ $$rpm.$$ The average flow stress for the plate material is $$300$$ $$MPa.$$ The power required for the rolling operation in $$kW$$ is closer to
A
$$15.2$$
B
$$18.2$$
C
$$30.4$$
D
$$45.6$$
4
GATE ME 2007
+2
-0.6
The thickness of metallic sheet is reduced from an initial value of $$16mm$$ to a final value of $$10mm$$ in one single pass rolling with a pair of cylindrical rollers each of diameter of $$400mm.$$ The bite angle in degrees will be
A
$$5.936$$
B
$$7.936$$
C
$$8.936$$
D
$$9.936$$
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude
EXAM MAP
Medical
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