Electrical Engg (EEE) - MCQ Practice Questions

In a complex circuit using superposition theorem, the total response is found by:

For a transmission line with characteristic impedance Z₀ = 50 Ω and load impedance ZL = 100 Ω, the reflection coefficient is:

For a series RLC circuit with R = 10 Ω, L = 0.1 H, C = 100 μF at resonance, what is the resonant frequency?

In a network, when using the cut-set method, a cut separates the network into two parts. How many equations are needed for a network with 'b' branches and 'n' nodes to find all branch currents?

A network contains a voltage source Vs = 10V, resistor R₁ = 10Ω in series, and two parallel branches with R₂ = 20Ω and R₃ = 30Ω. What is the Thevenin equivalent resistance (Rth) seen from terminals across R₃?

For a passive linear network, the input impedance looking into terminals is Z(s). If a unit impulse is applied as input, the impulse response h(t) is the:

For a two-port network, when port 2 is open-circuited (I₂=0), the parameter measured is:

The cut-set matrix is used in circuit analysis to:

A circuit contains a 12V source, two resistors (6Ω and 3Ω) in series, and a 4Ω resistor in parallel with the 3Ω resistor. Using Thevenin's theorem, RTh across the 4Ω resistor terminals is:

In a circuit with mutual inductance M between two coils, if the coupling coefficient k = 0.8, L1 = 10H, then L2 is at least:

A circuit has a loop containing 5V source, 10V source (opposite polarity), 2Ω, and 3Ω resistors. Using KVL, the current magnitude in the loop is:

In ABCD parameters of a two-port network, parameter C represents:

The swing equation in power system stability is given by:

The critical clearing time in transient stability refers to:

The Ferranti effect in long transmission lines is characterized by:

In the Newton-Raphson method for load flow analysis, convergence depends on:

The phenomenon of voltage instability leading to voltage collapse occurs primarily due to:

Which among the following is the correct formula for calculating bus voltage magnitude in Gauss-Seidel load flow method?

In a 500 kV transmission line, if the receiving end voltage drops to 0.9 pu, what type of compensation is most critical?

In transient stability assessment, what does the 'equal area criterion' determine?