BARC EE : Full Syllabus Test - 12

A DC shunt generator supplies a load of 7.5 kW at 200 V. If the armature resistance is 0.6 Ω and field resistance is 80 Ω, the induced emf will be

In the one-line diagram of a 3-phase power system shown the ratings of equipment’s are :  Generator G₁ : 10 MVA , 13.2 kV, X₁ = 10%, X₂ = 5% and G₂. Transformer T₁ and T₂ : 10 MVA, 13.2 kV/66 kV & T₃: X₁ = X₂ = X₀ = 5%. Line Reactance: X₁ = X₂ = 5 Ω, X₀ = 10 Ω

If a SLG fault occurs at bus B, the fault current is

Which one of the following statement is not true for single phase semi-converter, in which the firing angle of each thyristor is same.

A (0 – 250) V voltmeter has a guaranteed accuracy of ± 2% of full-scale reading. The limiting error if the measured voltage is 200 V is:

Time period of signal x(t) is _______, if x(t) = e^–7t sin(10πt).

For a motor consider torque – load characteristics:

1. A is stable operating point.

2. B is stable operating point.

Choose the correct option:

In a power factor meter working on principle of electrodynamometer the cosine of angle between moving coils is given by

A DC shunt motor has the following characteristics, R_a = 0.5Ω, R_f = 200Ω, base speed = 1000 rpm, rated voltage = 250V. On no load it draws a current = 5A. At what speed will this run while delivering a torque of 150 N/m?

Trapezoidal rule is used to integrate the function F(x) = between x = 0 and x = 1 using the least no of equal sub intervals the value of the integral is

The numerical integration technique used for any number of sub-intervals is:

If the phase sequence of an alternator is RYB. Now if the field polarities are reversed then the phase sequence will be:

A lossless transmission line is modelled only by a series reactance XΩ with |V_S| = |V_r|= |V| . During two maximum power transfer, the reactive power consumed by transmission line is: