Q121
Open questionThe slowest mode of heat transfer.
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Metallurgical Engineering · all questionsMiscellaneous in Metallurgy
Miscellaneous in Metallurgy
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Q122
Open questionMaterial difficult to be spot welded is
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Q123
Open questionEngineering stress-strain curve for a metal under two conditions. A and B, are shown is the following figures. Identify the correct statement.
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Q124
Open questionOpen circuit voltage for arc welding is of the order of
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Q125
Open question. . . . . . . . is the visible portion of the arc consisting of plasma (hot ionized gas) where the voltage drop is not sharp.
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Q126
Open questionUsually, softer constituent of a composite is
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Q127
Open questionThe property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.
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Q128
Open questionJogs and Kinks
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Q129
Open questionHow error function can be calculated in diffusion phenomena?
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Q130
Open questionThe mass flow process by which atoms changes its position related to their neighbors in a given phase under the influence of thermal energy & concentration gradient.
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Q131
Open questionIf two positive edge dislocation are present on same plane then there will be
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Q132
Open questionA material is loaded elastically under plane stress condition given by the following tensor:
\left[ {\begin{array}{*{20}{c}} 1 \\ 0 \end{array}\begin{array}{*{20}{c}} 2 \\ 1 \end{array}\begin{array}{*{20}{c}} 0 \\ 0 \end{array}} \right]
The modulus of rigidity is 25 MPa. The maximum elastic engineering strain is
\left[ {\begin{array}{*{20}{c}} 1 \\ 0 \end{array}\begin{array}{*{20}{c}} 2 \\ 1 \end{array}\begin{array}{*{20}{c}} 0 \\ 0 \end{array}} \right]
The modulus of rigidity is 25 MPa. The maximum elastic engineering strain is
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Q133
Open questionThe critical internal crack length (in mm) in a steel having Klc of 45 Mpa √m to support a Mode-I-stress of 400 Mpa is
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Q134
Open questionGood surface finish and dimensional accuracy can be achieved in
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Q135
Open questionMatch the following.
| Group 1 | Group 2 |
| P. Heat transfer coefficient | 1. m2S-1 |
| Q. Thermal diffusivity | 2. W. m-2 K-1 |
| R. Mass transfer coefficient | 3. Kg. m-1 s-1 |
| S. Viscosity | 4. m.s1 |
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Q136
Open questionWhich is the maximum temperature(°C) at the tip of the oxyacetylene . . . . . . . .
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Q137
Open questionThe first step of plastic deformation can be considered as the step created when
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Q138
Open questionFluid which does not follow the newtons law that is shear stress is not proportional to rate of shear strain known as
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Q139
Open questionAl-alloys for engine/automobile parts are reinforced to increase their
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Q140
Open questionTempering those results in a reduction of toughness is known as
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