BARC EE : Full Syllabus Test - 15

For salient pole alternator, consider the following: X_d = 1 p.u., X_q = 0.6 p.u. At full load 0.8 p.f., load angle in degrees. (Use tan^–1(1.5) = 56.3°).

A continuous random variable has following density function given as:

The mean of this random variable is _________.

A cable has the following characteristics:

L = 0.2

The velocity of wave propagation through the cable is

The impulse response of a continuous time system is given by h(t) = δ(t-1) + δ(t-3). The value of the step response at t=2 is

The power transformer having capacity of 5 MVA with 66/33 kV (delta-star) is protected by circulating current protection system. The ratio on primary side and secondary side of the transformer respectively for a circulating current of 5 A in the pilot wire is ________

Power MOSFET is a ________ device.

A 1 mA meter is to be converted into 0 – 100 mA range. If internal resistance is 100 Ω then value of shunt resistance received is _______Ω.

Which of the following coupling can be used for the amplification of DC and very low frequency ?

A sinusoidal voltage of amplitude 50 V is applied to a half wave rectifier having forward resistance of 6 Ω. A hot wire and PMMC instruments are connected in the circuit for measurement of current. The readings of hot wire and PMMC instruments are

Consider two synchronous generators defined by

P₁ = 100(50 – f) in MW

P₂ = 50(51 – f) in MW

Where, f is _______Hz if total load is 500 MW. (Consider system to be lossless)

A star connected load is supplied by a 50 Hz source. The rating of load is 20 KVA, 0.8 pf lagging. If the receiving end voltage is 400 V then what is the per phase capacitance of delta connected bank required to bring power factor to unity?

The starting current in an induction motor is 5 times the full-load current while the full load slip is 4%. The ratio of starting torque to full load torque is