1
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
Cold working produces the following effects
$$1.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Stress are set up in the material
$$2.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Grain structure get distorted
$$3.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Strength and hardness of the metal are decreased
$$4.$$$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ Surface finish is reduced
2
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
Consider the following steps in forging a connecting rod from the bar stock
$$1.$$ blocking $$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$$$2.$$ trimming
$$3.$$ finishing$$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$ $$\,\,\,\,\,\,\,\,\,$$ $$4.$$ edging
Select the correct sequence of these operations using the codes given below
3
GATE PI 1994
MCQ (Single Correct Answer)
+2
-0.6
An annealed copper wire of $$25 mm$$ diameter is drawn into a wire of $$5$$ $$mm$$ dia. The average yield stress in this operation if the flow curve of the material is given
$$\sigma = 315{ \in ^{0.54}}\,MPa$$
$$\sigma = 315{ \in ^{0.54}}\,MPa$$
4
GATE PI 1992
MCQ (Single Correct Answer)
+2
-0.6
If the elongation factor during rolling of an ingot is $$1.22.$$ The minimum number of passes needed to produce a section $$250 \times 250\,\,mm$$ from an ingot of $$750 \times 750\,\,mm$$ are
Questions Asked from Metal Forming Process (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE PI Subjects
Fluid Mechanics
Metrology
Theory of Machines
Engineering Mathematics
Machine Tools and Machining
Industrial Engineering
Engineering Mechanics
Strength of Materials
Thermodynamics
Machine Design
Casting
Joining of Materials
Metal Forming