List of top Mechanical Engineering Questions asked in AP PGECET

A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to a height of 25 mm. The percentage change in diameter is
The ratio of modulus of rigidity to modulus of elasticity for a Poisson's ratio of 1 would be
In a Diesel cycle, the parameter that affects efficiency in addition to compression ratio is
What happens to the entropy of a pure substance during a phase change at constant temperature and pressure?
In free convection, which dimensionless number represents the ratio of buoyancy forces to viscous forces?
Angle of twist of a shaft of diameter 'd' is inversely proportional to
Which of the following processes is an example of an isothermal process?
Determine the atmospheric pressure at a location where the barometric reading is 700 mmHg and the gravitational acceleration is $g = 10 \text{ m/s}^2$. Assume the mercury density is $14000 \text{ kg/m}^3$.
The control volume approach in fluid mechanics is primarily used to analyse:
Which of the following is NOT a characteristic of a transportation problem?
The critical speed of a rotating shaft depends on
Consider an ideal vapour compression refrigeration cycle working on R-134a refrigerant. The COP of the cycle is 10 and the refrigeration capacity is 150 kJ/kg. The heat rejected by the refrigerant in the condenser is _______ kJ/kg.
A solid uniform metal bar of diameter D and length L is hanging vertically from its upper end. The elongation of the bar due to self-weight is
What happens to the total potential energy of a system if the external work done by applied loads is greater than the increase in internal strain energy?
The truss which follows the law $n =$ _________ is known as simple truss
The elastic constants, modulus of rigidity ‘K’ and modulus of elasticity ‘E’ are related through Poisson’s ratio ‘$\mu$’ as:
From a metallic wall at 100$^\circ$C, a metallic rod protrudes to the ambient air. The temperature at the tip will be minimum when the rod is made of:
In electrical resistance welding, pressure applied varies in the range:
The area enclosed by a thermodynamic cycle on a p-v diagram represents:
Compared to the Otto cycle for the same compression ratio, the diesel cycle efficiency is:
Bernoulli’s equation is applicable to:
Limits and fits ensure:
For maximum horizontal range, the angle of projection of a projectile should be:
Francis, Kaplan and propeller turbines fall under the category of:
Discontinuous chips are formed during machining of: