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.Management Sciences
Category: Strength of Materials
During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?
A. 4 tonnes/cm2
B. 8 tonnes/cm2
C. 16 tonnes/cm2
D. 22 tonnes/cm2
E. none of the above
The internal reaction in bottom 80 cm length will be________________?
A. same in both cases
B. zero in first case
C. different in both cases
D. data are not sufficient to determine same
E. none of the above
If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella ________________________?
A. more inclined when moving
B. less inclined when moving
C. more inclined when standing
D. less inclined when standing
E. none of the above
A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is__________________?
A. 0°
B. 30°
C. 45°
D. 60°
E. 90°.
Which is the false statement about true stress-strain method______________?
A. It does not exist
B. It is more sensitive to changes in both metallurgical and mechanical conditions
C. It gives, a more accurate picture of the ductility
D. It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.
E. It can be used for compression tests as well.
The stress necessary to initiate yielding is_________________?
A. considerably greater than that necessary to continue it
B. considerably lesser than that necessary to continue it
C. greater than that necessary to stop it
D. lesser than that necessary to stop it
E. equal to that necessary to stop it
The weakest section of a diamond riveting is the section which passes through ___________________?
A. the first row
B. the second row
C. the central row
D. one rivet hole of the end row
E. none of the above
A cable with a uniformly distributed load per horizontal metre run will take the following shape_________________?
A. straight line
B. parabola
C. hyperbola
D. elliptical
E. part of a circle
The property of a material by virtue of which a body returns to its original, shape after removal of the load is called____________________?
A. plasticity
B. elasticity
C. ductility
D. malleability
E. resilience
A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be_________________?
A. 30 MN/m2
B. 50 MN/m2
C. 100 MN/m2
D. 200 MN/m2
E. 300 MN/m2
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