Related Questions

Isotropic materials have the same __________ in all the directions.
A Thermal properties
B Elastic properties
C Stresses
D All of the above
Isotropic materials are those which have the same
A Elastic properties in all directions
B Stresses induced in all directions
C Thermal properties in all directions
D Electric and magnetic properties in all directions
In isotropic turbulence, the __________ are equal to each other.
A Temporal velocity components
B Mean square of velocity fluctuations in the three co-ordinate directions
C Root mean square of velocity fluctuations in the three co-ordinate directions
D None of these
While propagating through homogeneous, isotropic media,
A Directions of both the fields are orthogonal
B Both the fields are at right angles to the direction of propagation
C Both (A) and (B)
D Neither (A) nor (B)
The power gain of a half-wave dipole with respect to an isotropic radiator is
A 2.15 db
B 3 db
C 4.15 db
D 6 db
In a simple bending theory, one of the assumptions is that the material of the beam is isotropic. This assumption means that the
A Normal stress remains constant in all directions
B Normal stress varies linearly in the material
C Elastic constants are same in all the directions
D Elastic constants varies linearly in the material
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?
A E = 2G (1 + v)
B E = G (1 + v)
C $${\text{E}} = \frac{{{\text{G}}\left( {1 + {\text{v}}} \right)}}{2}$$
D E = 2G (1 + 2v)
Isotropic turbulence occurs
A Where there is no velocity gradient
B At higher temperatures
C Only in Newtonion fluids
D None of these
The materials having same elastic properties in all directions are called
A Ideal materials
B Uniform materials
C Isotropic materials
D Piratical materials
The materials which exhibit the same elastic properties in all directions are called
A Homogeneous
B Inelastic
C Isotropic
D Isentropic

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