31. If two positive edge dislocation are present on same plane then there will be
32. A 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
33. The 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
34. Good surface finish and dimensional accuracy can be achieved in
35. Match 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
| 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 |
36. Which is the maximum temperature(°C) at the tip of the oxyacetylene . . . . . . . .
37. The first step of plastic deformation can be considered as the step created when
38. Fluid which does not follow the newtons law that is shear stress is not proportional to rate of shear strain known as
39. Al-alloys for engine/automobile parts are reinforced to increase their
40. Tempering those results in a reduction of toughness is known as
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