List of top Mechanical Engineering Questions

Nusselt number is the ratio of:
Rankine's theory of failure is applicable for which of the following type of materials?
The elastic region in a stress-strain diagram corresponds to:
In gears, interference takes place when:
What is the nature of distribution of shear stress in a rectangular beam?
Pressure in a static fluid:
In a simple gear train, the velocity ratio depends on:
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
Critical speed of shaft corresponds to:
Whirling speed of a shaft coincide with the natural frequency of the:
The range of projectile is maximum when the angle of projection is:
Euler’s theory applies to:
For plane stress, Mohr’s circle has:
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:
Critical damping is a function of
A particle moving in a circular path with constant speed has:
Calculate the efficiency of a Carnot engine operating between temperatures of 500K and 300K.
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?
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?
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?
Which of the following materials is most suitable for high-temperature applications in gas turbines?
A Carnot engine operates between a hot reservoir at 800 K and a cold reservoir at 300 K. What is its maximum theoretical efficiency?
If the efficiency of a machine is 80% and it consumes 500 W of power, what is the useful output power?