List of top Questions asked in AP PGECET- 2025

If the reference bus is changed in two load flow runs with same system data and power obtained for reference bus taken as specified P and Q in the later run: _______.
The positive, negative, and zero sequence impedance of a solidly grounded system under steady state condition always follow the relation ________.
One of the main causes of deterioration of cable dielectric is _______.
The ‘Equal Area Criterion’ for the determination of transient stability of the synchronous machine connected to an infinite bus ________.
An induction motor will develop maximum torque when the phase difference between the stator flux and the rotor current is_______.
Dummy coils may be needed in a DC wave winding _______.
A transformer operates most efficiently at \( \frac{3}{4} \) full-load. Its iron loss (\(P_i\)) and full-load copper loss (\(P_c\)) are related as _______.
Two transformers of identical voltages but of different capacities are operating in parallel. For satisfactory load sharing _______.
The only disadvantage of field control method for controlling the speed of a DC shunt motor is that it _______.
The purpose of connecting resistance in the rotor circuit of slip ring induction motor is _______.
When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______.
Crawling of a motor results from_______.
The voltage regulation of alternator at lagging power factor will be _______.
The phase cross-over frequency of the transfer function $G(s) = \frac{100}{(s+1)^2}$ in rad/s is _______.
The gain at the breakaway point of the root locus of a unity feedback system with open-loop transfer function $G(s) = \frac{K}{(s-1)(s-4)}$ is _______.
The presence of transportation lag in the forward path of a closed-loop control system _______.
The transfer function of a phase-lead compensator is given by: $\frac{1 + 3Ts}{1 + Ts}$, $T>0$. The maximum phase shift provided is _______.
Frequency domain analysis is preferred when dealing with systems having input as _______.
The input-output relationship of a linear system is given by _______.
If $X(z) = \frac{1}{1 - z^{-1}}$ with $|z|>1$, then what is the corresponding $x(n)$?
The steady state error due to a ramp input for a type two system is equal to _______.
A 10 V range Voltmeter is rated for 50 $\mu$A full-scale current. The total resistance of the voltmeter is_______.
The $Z_{22}$ - Parameter of a Two-port network is known as _______.
What is the value of total electric flux coming out of a closed surface?
The power factor at resonance in a parallel R-L-C circuit is_______.