1
GATE ME 2012
MCQ (Single Correct Answer)
+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
$$0.600$$
2
GATE ME 2008
MCQ (Single Correct Answer)
+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
$$45.6$$
3
GATE ME 2007
MCQ (Single Correct Answer)
+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
$$9.936$$
4
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
In open die forging, a disc of diameter $$200mm$$ height $$60mm$$ is compressed without any barreling effect. The final diameter of the disc is $$400mm.$$ The true strain is
A
$$1.986$$
B
$$1.686$$
C
$$1.386$$
D
$$0.602$$
GATE ME Subjects
Turbo Machinery
EXAM MAP