Related Questions

Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
A Mach
B Froude
C Reynolds
D Euler
The ratio of inertial forces to gravity forces is called the __________ number.
A Mach
B Froude
C Euler
D Weber
The ratio of pressure forces to inertial forces is called the __________ number.
A Froude
B Euler
C Reynold
D Mach
Ratio of inertial forces to surface tension forces is called the __________ number.
A Euler
B Froude
C Mach
D Weber
The ratio of inertial forces to viscous forces is called the __________ number.
A Weber
B Mach
C Froude
D Reynold
Three elastic constants for a completely anisotropic elastic material which follows the Hooke's law are young's modulus, elastic limit stress and yield stress. Which of the following properties is most sensitive to increase in strain rate ?
A Tensile strength
B Elastic limit
C Proportional limit
D Yield strength
Weber number is the ratio of inertial force to __________ force.
A Surface tension
B Gravity
C Viscous
D Elastic
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)
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
A Steel
B Glass
C Rubber
D Brass
All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain
A Increases very quickly
B Decreases very quickly
C Increases in proportion to stress
D Decreases in proportion to stress

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