Related Questions

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
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
A Same in both cases
B 2 times more
C 3 times more
D 4 times more
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 the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or
A 12 bar diameters
B 18 bar diameters
C 24 bar diameters
D 30 bar diameters
When a body is subjected to a direct tensile stress (σ) in one plane, the maximum shear stress is __________ the maximum normal stress.
A Equal to
B One-half
C Two-third
D Twice
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.
A 0.5
B 2
C $$\sqrt 2 $$
D $$\sqrt {\frac{3}{2}} $$
A line with a tapering width can be easily created by using the ________ tool.
A Circle
B Ellipse
C Line
D Polyline
The flow of a liquid through tapering pipe at a constant rate is an example of __________ flow.
A Steady uniform
B Steady non-uniform
C Unsteady uniform
D Unsteady non-uniform
The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight
A Of same magnitude as that of bar and applied at the lower end
B Half the weight of bar applied at lower end
C Half of the square of weight of bar applied at lower end
D One fourth of weight of bar applied at lower end
If a load W is applied instantaneously on a bar; Then the stress induced in bar will
A Be independent of ratio of mass of load W to mass of bar (y)
B Increase with increase in y
C Decrease with decrease in y
D Depend on other considerations

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