List of top Mechanical Engineering Questions

Critical speed of shaft corresponds to:
Pressure in a static fluid:
The range of projectile is maximum when the angle of projection is:
A stone of mass ‘m’ at the end of a string of length ‘l’ is whirled in a vertical position at a constant speed. The tension in the string will be minimum when the stone is at the
In a simple gear train, the velocity ratio depends on:
Critical damping is a function of
A purchasing assistant has calculated the carrying cost in Rupees Per unit annum, and the EOQ = 500 units for an item. He must have taken that the annual ordering cost for this item:
For plane stress, Mohr’s circle has:
Euler’s theory applies to:
A particle moving in a circular path with constant speed has:
What is the Reynolds number for flow in a pipe with a diameter of 0.05 m, velocity of 2 m/s, and kinematic viscosity of $1 \times 10^{-6}$ m\(^2\)/s?
Calculate the efficiency of a Carnot engine operating between temperatures of 500K and 300K.
What is the principle of the operation of a hydraulic press?
In a simply supported beam with a uniform load, the shear force is maximum at:
Which of the following processes is used for shaping metal by pressing it into a mold under high pressure?
Which of the following materials is most suitable for high-temperature applications in gas turbines?
In a turning operation, the cutting speed is 120 m/min, and the diameter of the workpiece is 50 mm. What is the spindle speed in RPM?
If the efficiency of a machine is 80% and it consumes 500 W of power, what is the useful output power?
A Carnot engine operates between a hot reservoir at 800 K and a cold reservoir at 300 K. What is its maximum theoretical efficiency?

The Newton-Raphson method is used to find the root of \[ f(x) \equiv x^2 - x - 1 = 0 \] Starting with an initial guess \( x_0 = 1 \), the second iterate \( x_2 \) is __________ (rounded off to 2 decimal places).

A shaft has diameter $20^{+0.05}_{-0.15}$ mm and a hole diameter $20^{+0.20}_{-0.10}$ mm. When these are assembled, then what is the nature of fit yield?

In critical path method, critical path moves along with the activities having total float of:
Hungarian method is generally used to solve the following type of problem:
In A-B-C inventory control technique, the maximum attention is given to the items which
The charts which present graphically the process of work by showing the machine operation, man hour performance, quantities completed, etc., to facilitate day-to-day planning of the work are termed as