1
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
When $$3-2-1$$ principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
A
$$7$$
B
$$8$$
C
$$9$$
D
$$10$$
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

A
$$1-2-3-4$$
B
$$2-3-4-1$$
C
$$3-4-1-2$$
D
$$4-1-3-2$$
3
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

A
$$1$$ & $$2$$
B
$$1,$$ $$2$$ & $$3$$
C
$$3$$ & $$4$$
D
$$1$$ & $$4$$
4
GATE PI 2003
MCQ (Single Correct Answer)
+5
-1.5
In a single pass flat rolling operation, a $$400mm$$ wide steel strip having a thickness of $$10mm$$ is reduced to $$8mm$$ by using a roll of $$600mm$$ diameter.

The roll-strip contact length is

A
$$24.5$$ $$mm$$
B
$$34.6$$ $$mm$$
C
$$17.3$$ $$mm$$
D
$$49$$ $$mm$$
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12