NLC Technical Quiz 11

In the given circuit, β₁ = 100 β₂ = 150.The value ofis 5 kΩ. Find the input impedance

What should be the type of sequential circuit shown below to have ‘Race Around’ condition?

For a control system given by characteristic equation, s³ + Ks² + (2K + aK – 1)s + 2aK = 0. The condition for stability is

In Induction motor, what is the speed of rotation of rotor mmf vector with respect to respected to rotor (N_s is synchronous speed of rotating magnetic field and N_r is speed of rotor).

Which single phase Induction motor is used in ceiling fans?

In the circuit shown below, all devices are ideal. The ammeter reads average value. What is the reading of ammeter?

In the circuit shown all the alternators have 0.3, 0.4 and 0.05 pu as per unit positive, negative and zero sequence reactance’s. Also, all transformers have 0.1, 0.1 and 0.05 pu reactance’s as positive, negative and zero sequence reactance respectively. For a single line to ground fault near load, the fault current is ?

A generator is connected to an infinite bus through j 1.5pu impedance. If the generator bus voltage is 1.5 pu then the value of synchronizing power coefficient at δ = 30^o is

Which of the following statement is true with respect to single phase full bridge inverter?

If the 4-cycle current surge rating an SCR is 20 A then the surge current that the SCR can withstand for one cycle is: