UPPCL AE 2019: Technical Quiz 16 (App update required to attempt this test)

Find Vo if op-amp is considered ideal?

The 7’s complement of octal number is 5264. Then find the hexadecimal equivalent of octal number

Calculate in circuit shown below at t = 0.3 s

The box in fig. contains a linear bilateral passive resistive network. The terminals 22`are shorted and a voltage of 20V is applied to terminals 11`. The currents I1 and I2 are 10A and-2A . The box is reconnected as shown in fig B

_{Find the current and voltage across terminals 11`}

Find the value of V₁ for the circuit shown below.

A synchronous generator of reactance 0.6 p.u. is connected to infinite bus bar having voltage of 1 p.u. The generator having an internal emf of 1.4 p.u. The generator is delivering 0.5 p.u. to an infinite bus through transformer and transmission line having reactance of 0.6 p.u. The machine having inertia constant H = 4 MW-Sec/MVA. Neglect the resistance and damping, system is operating at 50 Hz. Calculate the frequency of oscillation?

A 3-bus power system network has bus admittance matrix as

If a transmission line is added in parallel to already existing line between 2 and 3 having. Find the Y₂₂ of modified Y_bus matrix?

Consider the unit step response of a second order system as shown in the figure below

What will be the percentage overshoot (%m_p) for the second overshoot in the response.

Which of the following statement is true regarding the root locus of the system having loop gain G(s)H(s) = k(s+1)/[(s²(s+k₁)] where k₁ = 20

(1) It will have three valid break points.

(2) Two of the roots will move towards zeroes at infinity along the asymptotes at s = -9.5.

(3) Part of the root locus will be a circle with radius 2.3units.

(4) All the above.

In the given circuit, what is the value of V_E when using a silicon BJT?