List of top Mechanical Engineering Questions on Strength of Materials

The resistance to fatigue of a material is measured by
Maximum shear stress in a thin cylindrical shell subjected to internal pressure \( p \) is
As per Euler’s theory, the crippling load for a column of length \( l \) with one end fixed and the other end hinged having Young’s modulus \( E \) and moment of inertia \( I \) is
When a shaft is subjected to torsion, the shear stress induced in the shaft varies from ---- at the centre and ---- at the circumference.
The maximum bending moment of a simply supported beam of span \( l \) and carrying a point load \( W \) at the centre of the beam is
The strain energy stored in a spring when it is subjected to maximum load without suffering permanent distortion is known as
The shear force at the fixed end of a cantilever beam of length \( l \) carrying a uniformly distributed load \( w \) per unit length is
If \( \sigma_1 \) and \( \sigma_2 \) are two principal stresses, then the radius of Mohr’s circle is
The maximum deflection of a fixed beam of length \( l \) carrying a total load \( W \) being uniformly distributed over the entire length is
The elastic constants, modulus of rigidity ‘K’ and modulus of elasticity ‘E’ are related through Poisson’s ratio ‘$\mu$’ as:
The ratio of applied load to instantaneous cross section area is called
The elastic region in a stress-strain diagram corresponds to:
Rankine's theory of failure is applicable for which of the following type of materials?
The first moment of area of a semicircular area about its diameter ‘d’ is given by:
The complete transformation of austenite takes place during cooling from liquid state at:
The important parameter which is considered for the measure of ductility is:
Quenching is not necessary when the hardening process is done by the following way:
The alloy of copper which can be used against fatigue, wear and corrosion is
During the crystallization process, the energy which retards is called as
What is the element to be added to the molten cast iron in order to obtain the nodular cast iron?
If the blade efficiency is 80% and the stage efficiency is 60%, what is nozzle efficiency of a DeLaval turbine?
A shaft subjected to pure torsion develops the maximum shear stress of 80 MPa. If the shaft diameter is doubled, then the maximum shear stress developed in the shaft corresponding to the same torque is
A thin cylindrical shell subjected to an internal pressure resulted in hoop stress and longitudinal stress. If the radius and thickness of the shell are increased by 10%, then the increase in percentage of hoop stress and longitudinal stress respectively are
A simply supported beam of length 'L' having the flexural rigidity of 'EI', subjected to a uniformly distributed load of 'w'. Then the maximum bending moment and maximum deflection are
Based on flexural point, a beam can be considered as strongest due to: