List of top Mechanical Engineering Questions

What is the effect of mass of spring \(m_s\) on equivalent mass \(M\) of system with mass \(m\)?
The transformed equation of \( \frac{\partial^2 u}{\partial x^2} + \frac{\partial^2 u}{\partial y^2} = 0 \) in polar coordinates is:
The value of \(\Gamma\left(\frac{1}{2}\right)\) is:
The volume of the solid bounded by the planes \(x=0\), \(y=0\), \(z=0\) and \(x+y+z=2\) is:
If the probability of a bad reaction from a certain injection is \(0.001\), then the chance that out of 2000 individuals more than two will get a bad reaction is given by:
When a ball mill rotates at a speed higher than the critical speed, what happens to its efficiency?
Which mechanical drive is specifically used to impart a reciprocating or oscillatory motion to another body in contact?
What is the stress developed when a steel rod of radius \(10 \, \text{mm}\) is stretched by a \(100 \, \text{kN}\) force?
A ball is thrown vertically upward with a velocity of \(5 \, \text{m/s}\); if it takes 10 sec for the upward journey, how long does the downward journey take?
Which translatory joint in a robot configuration is known as a sliding joint?
What is the natural frequency of a free vibration system defined by the equation \( \ddot{X} + 36\pi^2 X = 0 \)?
The polar section modulus for a circular shaft of diameter \(d\) is given by which formula?
For a DC power source for arc welding with characteristics \(3V + I = 240\), what voltage \(V\) yields maximum power?
Forces whose line of action passes through a common point are known as what?
Which of the following is a coarse crusher used in mechanical operations?
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
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
When a shaft is subjected to torsion, the shear stress induced in the shaft varies from ---- at the centre and ---- at the circumference.
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
Maximum shear stress in a thin cylindrical shell subjected to internal pressure \( p \) is
The maximum deflection of a fixed beam of length \( l \) carrying a total load \( W \) being uniformly distributed over the entire length is