1
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Which two of the following joining processes are autogeneous?
$$(i)$$ Diffusion welding
$$(ii)$$ Electro slag welding
$$(iii)$$ Tungsten inert gas welding
$$(iv)$$ Friction welding
A
$$(i)$$ and $$(iv)$$
B
$$(ii)$$ and $$(iii)$$
C
$$(ii)$$ and $$(iv)$$
D
$$(i)$$ and $$(iii)$$
2
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
Orthogonal turning of a mild steel tube with a tool of rake angle $${10^0}$$ is carried out at a feed of $$0.14$$ $$mm/rev.$$ If the thickness of the chip produced is $$0.28mm,$$ the values of shear angle and shear strain will be respectively.
A
$${28^ \circ }20'$$ and $$2.19$$
B
$${22^ \circ }20'$$ and $$3.53$$
C
$${24^ \circ }30'$$ and $$4.19$$
D
$${37^ \circ }20'$$ and $$5.19$$
3
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
In a machining operation, if the generatrix and directrix both are straight lines, the surface obtained is
A
Cylindrical
B
helical
C
Plane
D
Surface of revolution
4
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
A shaft of length $$90$$ $$mm$$ has a tapered portion of length $$55$$ $$mm.$$ The diameter of the taper is $$80$$ $$mm$$ at one end and $$65$$ $$mm$$ at the other. If the taper is made by tailstock set over method, the taper angle and the set over respectively are.
A
$${15^ \circ }32'$$ and $$12.16$$ $$mm$$
B
$${18.^ \circ }32'$$ and $$15.66$$ $$mm$$
C
$${11^ \circ }22'$$ and $$10.26$$ $$mm$$
D
$${10^ \circ }32'$$ and $$14.46$$ $$mm$$
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