The picture on the monitor of a computer is made up of tiny coloured dots called Spots Icons Pixels Points TRUE ANSWER : ? YOUR ANSWER : ?
Bulk power transmission over long HVDC lines are preferred on account of No harmonic problems Simple protection Low cost of HVDC terminals Minimum line power losses TRUE ANSWER : ? YOUR ANSWER : ?
In the protection of transformers, harmonic restraint is used to guard against Unbalanced protection Switching over voltages Magnetizing inrush current Lightning TRUE ANSWER : ? YOUR ANSWER : ?
The insulation coordination for UHV lines (above 500 kV) is done based on Lightning and switching surges Lightning surges Switching surges Voltage level of the line TRUE ANSWER : ? YOUR ANSWER : ?
In a series RLC circuit at resonance Current is maximum and power factor is 0.5 Current is minimum and power factor is 0.5 Current is maximum and power factor is unity Current is minimum and power factor is unity TRUE ANSWER : ? YOUR ANSWER : ?
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit? Conductor Capacitor Resistor Voltage source TRUE ANSWER : ? YOUR ANSWER : ?
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be 0.4 % 6 % 5 % 4 % TRUE ANSWER : ? YOUR ANSWER : ?
Which lightning stroke is most dangerous? Direct stoke on tower top Direct stroke on line conductor Indirect stroke on conductor Direct stroke on ground wire TRUE ANSWER : ? YOUR ANSWER : ?
A fixed step by step procedure for finding the solution of a problem on computer is called Software Hardware Logic Algorithm TRUE ANSWER : ? YOUR ANSWER : ?
An IDMT relay provides An inverse characteristic for low values of the fault current and a definite time characteristic for high values of the fault current An inverse time current characteristic A definite time cuttent characteristic A definite time characteristic for low values of the failt current and an inverse characteristic for high values of the fault current TRUE ANSWER : ? YOUR ANSWER : ?