List of top Questions asked in AP PGECET- 2026

Which of the following is a key assumption in linear programming?
Computer Integrated Manufacturing (CIM) primarily refers to
The number of atoms per unit cell and the number of slip system, respectively, for a face-centered cubic (FCC) crystal are
A closed system undergoes a process in which it interacts with the surroundings maintained at \(T_{0} = 300\text{ K}\) and \(P_{0} = 100\text{ kPa}\). During the process:
\(\bullet\) The system receives 1000 kJ of heat from a reservoir at 1200 K.
\(\bullet\) The system does 500 kJ of boundary work on the surroundings.
\(\bullet\) There is no change in kinetic or potential energy, and the process ends at the dead state (equilibrium with surroundings).
Which of the following statements is most correct?
For an air-standard Otto cycle, the compression ratio is 8 and the ratio of specific heats (\(\gamma\)) is 1.4. The air-standard efficiency of the cycle is _______.
The device used to demonstrate laminar and turbulent flow in pipes is:
What is the main difference between annealing and tempering?
A shaft is required to transmit a power of 25 kW at 360 rpm. The force analysis due to attached parts results in Bending Moment of 830 Nm at a section between bearings. If permissible stresses in the shaft are 60 N/mm\(^2\) in bending and 40 N/mm\(^2\) in shear, calculate the diameter of the shaft.
Air enters an adiabatic nozzle at 300 kPa and 500 K with a velocity of 10 m/s. It leaves the nozzle at 100 kPa with a velocity of 180 m/s. The specific heat of air \(C_{\text{p}} = 1008\text{ J/kg}\cdot\text{K}\). The exit temperature of air is
In the entrance region of a pipe, the boundary layer grows and the inviscid core accelerates. This is accompanied by the fluid's pressure drop per unit length is
In a counter flow heat exchanger, hot fluid enters at \(120^\circ\text{C}\) and leaves at \(80^\circ\text{C}\). Cold fluid enters at \(20^\circ\text{C}\) and leaves at \(60^\circ\text{C}\). Find the log mean temperature difference (LMTD).
Which comparator type uses a dial indicator to measure deviations from a standard?
For an ideal Rankine cycle operating between pressure of 30 bar and 0.04 bar the work output from the turbine is 903kJ/kg and the work input to the feed pump is 3kJ/kg. The specific steam consumption is ________ kg/kWh
What is the primary reason for using a key in shaft and gear assemblies?
What is the significance of the "instantaneous center of zero velocity" in mechanism analysis?
In a clock mechanism, hour and minute hands are connected by _________ gear train.
Consider a simple gas turbine (Brayton) cycle and a gas turbine with perfect regeneration. In both the cycles, the pressure ratio is 6 and the ratio of the specific heats of the working medium is 1.4. The ratio of minimum to maximum temperatures is 0.3 (with temperatures expressed in K) in the regenerative cycle. The ratio of the thermal efficiency of the simple cycle to that of the regenerative cycle is
Heat transfer of 800 kJ occurs from a source at 500 K to surroundings at 300 K. Calculate maximum available work.
Which of the following processes is isobaric?
During heat treatment of steel, the hardness of various structures in increasing order is
In a project network, two parallel activities start from the same node and merge at the same succeeding node. Their durations are: Activity A = 6 days, Activity B = 9 days. Which statement is correct?
The continuity equation for an incompressible fluid states that:
Water (\(C_{\text{p}} = 4.18\text{ kJ/kg}\cdot\text{K}\)) at \(80^\circ\text{C}\) enters a counter-flow heat exchanger with a mass flow rate of \(0.5\text{ kg/s}\). Air (\(C_{\text{p}} = 1\text{ kJ/kg}\cdot\text{K}\)) enters at \(30^\circ\text{C}\) with a mass flow rate of \(2.09\text{ kg/s}\). If the effectiveness of the heat exchanger is 0.8, the LMTD (\(^\circ\text{C}\)) is
If a heat exchanger has effectiveness = 1, it means:
The Number of Transfer Units (NTU) method is primarily used to: