List of top Electrical Engineering Questions

A moving-iron voltmeter reads correctly on DC. If connected to a 50 Hz sinusoidal AC source whose RMS value equals the DC value, then the reading will be

A DC potentiometer has a potential gradient of 20 mV/cm. The balancing lengths for a standard cell and an unknown voltage are 75 cm and 120 cm respectively. If the standard cell voltage is 1.50 V, then the unknown voltage is

Resolution of a \(3\frac{1}{2}\) digit DVM is

A current transformer has ratio 500/5. If the burden is 2 VA at rated secondary current, the corresponding burden impedance is

The state equation of a dynamical system is: \(\dot{X} = AX + Bu\), where \([A]\) is a \(3 \times 3\) system matrix and \([B]\) is a \(3 \times 1\) input matrix. Then the controllability matrix \(Q_c\) is

Feeding the distributor at more than one point

Which of the following bridge is not used for the measurement of capacitance?

Sensitivity of the following open loop system is:

Time constant of a first order unit step input system is defined as the time at which unit step response reaches

Which of the following pair of electro-mechanical devices are part of Synchro?

Choose the correct statement with reference to standard test signals

Natural frequency of oscillations of the following transfer function is \(\frac{C(s){R(s)} = \frac{1}{(s^2 + 0.5s + 1)}\):}

For the following system, the angles of asymptotes are \[ G(s)H(s) = \frac{K}{s(s^2+2s+1)} \]

The steady-state error of Type-2 system for a standard unit velocity input is

Match the following electrical system with mechanical system based on current-force analogy:

Compared with an induction motor, AC servo motor speed-torque characteristics and X/R ratio respectively are

The centroid of the following system is \[ G(s)H(s) = \frac{K(s+10)(s+20)}{s^3(s+100)(s+800)} \]

The per unit value of a \(2\text{ }\Omega\) resistor at \(100\text{ MVA}\) base and \(10\text{ kV}\) base voltage is

The most frequently occurred fault in the power system is:

The transfer function model of a system is the reshaping of the differential equations of which type of system?

Bonding of the cable is done to:

The effect of increase in temperature on transmission lines:

In distribution systems, the size of conductor is determined by using:

The insulators used in transmission lines at river and road crossing are:

The insulation resistance of a single core cable is \(160\text{ M}\Omega/\text{km}\). The insulation resistance for \(4\text{ km}\) length is