Related Questions

The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is
A Same
B Double
C Half
D Four times
Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
A Strain
B Stress
C Pressure
D Modulus of elasticity
When a bar of length '$$l$$' and diameter 'd' is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)
A $$\frac{{{\text{w}}l}}{{2{\text{E}}}}$$
B $$\frac{{{\text{w}}{l^2}}}{{2{\text{E}}}}$$
C $$\frac{{{\text{w}}{l^3}}}{{2{\text{E}}}}$$
D $$\frac{{{\text{w}}{l^4}}}{{2{\text{E}}}}$$
The length of a conical bar is $$l$$, diameter of base is d and weight per unit volume is w. It is fixes at its upper end and hanging freely. The elongation of the bar under the action of its own weight will be
A $$\frac{{{\text{w}}{l^2}}}{{2{\text{E}}}}$$
B $$\frac{{{\text{w}}{l^2}}}{{4{\text{E}}}}$$
C $$\frac{{{\text{w}}{l^2}}}{{6{\text{E}}}}$$
D $$\frac{{{\text{w}}{l^2}}}{{8{\text{E}}}}$$
When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
A Tensile stress
B Compressive stress
C Shear stress
D Thermal stress
A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is
A $$\frac{{\text{L}}}{{\text{d}}}$$
B $$\frac{{\text{L}}}{{2{\text{d}}}}$$
C $${\left( {\frac{{\text{L}}}{{2{\text{d}}}}} \right)^2}$$
D $${\left( {\frac{{\text{L}}}{{3{\text{d}}}}} \right)^2}$$
The elongation of a conical bar under its own weight is __________ that of prismatic bar of the same length.
A Equal to
B Half
C One-third
D Two-third
The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be
A 1 : 2
B 1 : 3
C 1 : 4
D 1 : 2.5
A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is
A $$\frac{{{\text{WL}}}}{{2{\text{AE}}}}$$
B $$\frac{{{\text{WL}}}}{{{\text{AE}}}}$$
C $$\frac{{{{\text{W}}^2}{\text{L}}}}{{{\text{AE}}}}$$
D $$\frac{{{{\text{W}}^2}{\text{L}}}}{{2{\text{AE}}}}$$
Weight of C is twice the weight of M. Weight of M is 1/9 of the weight of R. Weight of R is 5/2 of the weight of K. Weight of K is 1/3 of the weight of G. Who is the second lightest?
A C
B M
C K
D G

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