List of top Questions asked in AP PGECET- 2026

A 12-pulse HVDC link: line voltage = 220 kV (LL), $\alpha = 30^\circ$. Approximate DC voltage:

A 6-pulse HVDC rectifier produces which harmonics in AC line current?

A synchronous generator is over-excited and running in parallel with an identical generator at the same terminal voltage. The over-excited generator will:

An autotransformer converts 200V to 100V supplying same load. Copper saving is

A DC generator has flux doubled and speed halved. New EMF is

A diode current increases from 1 mA to 10 mA. Dynamic resistance changes by:

Adding a Zero to the transfer function generally:

Which plot is used to determine stability by looking at the encirclements of the point (-1, j0)?

If the eigenvalues of the system matrix A are -2 and -5, the system is:

The State Transition Matrix \( \phi(t) \) is given by:

A system is "Controllable" if:

In State-Space representation, the "State Vector" consists of:

Lead compensation is used primarily to:

A Gain Margin of 0 dB or a Phase Margin of 0 degrees indicates the system is:

Boost converter output \( V_o \) is:

The Root Locus always starts at the _______ and ends at the _______.

In the Routh-Hurwitz criterion, a system is stable if:

For a Type-1 system, the steady-state error to a unit ramp input is:

The bridge used for the measurement of an unknown capacitance is:

The Lissajous patterns are used to measure:

Which of the following is an "Active" transducer?

A Q-meter works on the principle of:

A Dynamometer-type instrument is primarily used as a "Transfer Instrument" because:

A digital voltmeter (DVM) with a \( 3 \frac{1}{2} \) digit display can show a maximum count of:

The "Creeping" phenomenon occurs in which type of instrument?