List of top Questions asked in AP ECET EEE- 2026

A fuse in domestic wiring is always connected in the
The main purpose of earthing in electrical installation is
Which type of earthing is commonly used in domestic installations?
In an NPN transistor, the region which is heavily doped is
In a common emitter transistor configuration, the current gain \(\beta\) is given by
In which type of wiring system is highly skilled labor required?
In a substation Single Line Diagram (SLD), which equipment is typically placed closest to the incoming line?
The unit of Specific Energy Consumption (SEC) is
A compressor in an electric locomotive is driven by an auxiliary motor to provide air for
Which of the following is the standard electrification system used by Indian railways for mainline trains?
A single phase AC distributor has a total resistance of \(0.2\ \Omega\) and a reactance of \(0.3\ \Omega\). If the load current is \(100\ \text{A}\) at \(0.8\) p.f. lagging, the approximate voltage drop is
The distance between two stops is \(5\ \text{km}\), the average speed is \(50\ \text{km/h}\), and the stop time is \(2\) minutes. Find the scheduled speed.
A string of \(3\) discs can withstand a total voltage of \(25.76\ \text{kV}\). If each unit can individually withstand a maximum of \(11\ \text{kV}\), then the string efficiency is
If the length of the span between two level supports is increased by \(20\%\), the sag will increase by approximately
A long transmission line is energized at the sending end but kept open circuited at the receiving end. If the sending end voltage is \(100\ \text{kV}\), the receiving end voltage is likely to be
What happens to the corona effect if the spacing between conductors is increased?
A \(10\ \text{km}\) long cable has an insulation resistance of \(2\ \text{M}\Omega\). What will be the insulation resistance for a \(50\ \text{km}\) length of the same cable?
The converter used at the sending end of an HVDC system acts as a
The sending end voltage of a line is \(33\ \text{kV}\) and the receiving end voltage is \(30\ \text{kV}\). The voltage regulation of the line is
If the radius of a conductor in a transmission line is doubled while keeping spacing constant, the inductance of the line will
Which type of lightning arrester is also known as a “Surge Diverter”?
Which type of distance relay is inherently “directional” and does not require an additional directional unit?
Why are current limiting reactors usually “Air-cored” rather than “Iron-cored”?
Bus bar protection is usually not provided for which type of system?
If the area under a \(24\) hour daily load curve is \(480\ \text{MWh}\). The average load for that day is