The Young’s modulus of elasticity of a material is twice its modulus of rigidity. The Poisson’s ratio for the material will be
A.Zero
B.0.5
C.1
D.None of the above
Category: Strength Of Materials Mcqs
The point of contraflexure occurs in
A.Simply supported beams only
B.Cantilever beams only
C.Continuous beam only
D.Overhanging beams only
E.All types of beams
Continuous beams are
A.Stronger and much stiffer than simple beams
B.Weaker and less stiffer than simple beams
C.Subjected to excessive shear strain
D.Withstanding double the maximum bending moment on simple beams
E.None of the above
The loss of strength in compression due to overloading is known as _________________?
A.Creep
B.Bauschinger effect
C.Relaxation
D.Resilience
E.Hysteresis
The deflection of a beam may be reduced by ____________?
A.decreasing the depth of beam
B.increasing the span
C.providing greater end restrains
D.any of the above methods
Continue reading “The deflection of a beam may be reduced by ____________?”
Diamond riveting is generally used for____________?
A.Butt joints
B.Lap joints
C.Revised joints for dissimilar materials
D.Riveted joints for materials of different thickness
E.None of the above
Continue reading “Diamond riveting is generally used for____________?”
Strain rosettes are generally used for______________?
A.Measurement of load
B.Measurement of shear strain
C.Measurement of resilience
D.Measurement of proof stress
E.Measurement of longitudinal strains Continue reading “Strain rosettes are generally used for______________?”
The percentage reduction of area during tensile test on a cast iron specimen may be
A.Negligible
B.5%
C.10%
D.25%
E.50%
A shaft running at 300 rpm is required to transmit 300 horse power. The working stress in shear is 420 kg/cm2. The diameter of the shaft whould be in the range
A.1 cm to 2 cm
B.2 cm to 3 cm
C.3 cm to 4 cm
D.4 cm to 5 cm
E.7 cm to 9.7 cm
The stress at neutral axis is
A.Zero
B.Maximum tensile
C.Minimum compressive
D.Minimum tensile
E.Maximum compressive
