List of top Mechanical Engineering Questions asked in OJEE

The resistance to fatigue of a material is measured by
Critical speed of a shaft depends upon its
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have
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.
If the rotating mass of a rim type flywheel is distributed on a second rim type flywheel whose mean radius is half the mean radius of the former, then the energy stored in the second flywheel at the same speed will be ------- times that of the first flywheel
Critical damping is a function of
If a slider moves at a velocity \( v \) on a link rotating at speed \( \omega \,\text{rad/s} \), the Coriolis component of its acceleration is
If \( \sigma_1 \) and \( \sigma_2 \) are two principal stresses, then the radius of Mohr’s circle 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
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 maximum deflection of a fixed beam of length \( l \) carrying a total load \( W \) being uniformly distributed over the entire length is
Maximum height up to which a projectile can reach, if it is thrown upwards with initial speed \( u \) at an angle \( \theta \) with the ground surface, is
For a 2-dimensional truss structure, if \( m \) is the number of members, \( j \) is the number of joints and \( r \) is the number of reactions, then the condition for instability of the structure is
For a 2-dimensional truss structure, if \( m \) is the number of members, \( j \) is the number of joints and \( r \) is the number of reactions, then the condition for instability of the structure is
If the resultant of two forces of equal magnitude has the same magnitude as either of the two forces, then the angle between the two forces is
If the tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is
If \( u_1 \) and \( u_2 \) are the velocities of two bodies moving in the same direction before impact and \( v_1 \) and \( v_2 \) are the velocities of the same two bodies after impact, then the coefficient of restitution is