1
GATE PI 2014
Numerical
+1
-0
Using the Simpson's $$1/{3^{rd}}$$ rule, the value of $$\,\int {ydx} \,\,$$ computed, for the data given below, is
2
GATE PI 2014
Numerical
+1
-0
If the equation $$sin(x)$$ $$\, = {x^2}$$ is solved by Newton Raphson's method with the initial guess of $$x=1,$$ then the value of $$x$$ after $$2$$ iterations would be _________.
3
GATE PI 2014
+1
-0.3
Brazing and soldering are
A
plastic joining methods
B
homogeneous joining methods
C
autogeneous joining methods
D
heterogeneous joining methods
4
GATE PI 2014
Numerical
+2
-0
In an arc welding operation carried out with a power source maintained at $$40$$ volts and $$400$$ amperes, the consumable electrode melts and just fills the gap between the metal plates to be butt-welded. The heat transfer efficiency for the process is $$0.8,$$ melting efficiency is $$0.3$$ and the heat required to melt the electrode is $$20$$ $$J/m{m^3}$$. If the travel speed of the electrode is $$4$$ $$mm/s$$, the cross-sectional area, in $$m{m^2}$$, of the weld joint is ________________.
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