Related Questions

The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads.
A Same
B Double
C Three times
D Four times
The stress induced in a body, when suddenly loaded, is _________ the stress induced when the same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is
A Same
B Twice
C Four times
D Eight times
The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is
A $$\frac{1}{4}$$
B $$\frac{1}{2}$$
C 1
D 2
The strain energy stored in a body, when suddenly loaded, is __________ the strain energy stored when same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be
A $$\frac{{\text{W}}}{{\text{A}}}$$
B $$\frac{{\text{W}}}{{2{\text{A}}}}$$
C $$\frac{{2{\text{W}}}}{{\text{A}}}$$
D $$\frac{{3{\text{W}}}}{{\text{A}}}$$
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed
A 10 mm
B 15 mm
C 20 mm
D 25 mm
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor and W = Axial compressive load on the spring)
A $$\frac{{{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
B $$\frac{{2{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
C $$\frac{{4{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
D $$\frac{{8{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
The direct stress induced in a long column is __________ as compared to bending stress.
A Same
B More
C Less
D Negligible

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