Due to skin effect Portion of the conductor near the surface carries more current and the core of the conductor carries less current Uniform current flows through the conductor Current flows through the half cross section of the conductor Portion of the conductor near the surface carries less current and the core of the conductor carries more current TRUE ANSWER : ? YOUR ANSWER : ?
Hysteresis in an instrument means The change in the same reading when the input is first increased and then decreased The repeatability of the instrument The reliability of the instrument The inaccuracy due to change in temperature 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 6 % 0.4 % 4 % 5 % TRUE ANSWER : ? YOUR ANSWER : ?
What happens to the contents of RAM (Random Access Memory) when the power of the computer is turned off? Content is transferred to other memory Content gets corrupted Content is lost Content remains intact TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following power distribution system gives better reliabity ? DC 3 wire system None of these Radial system Ring main system TRUE ANSWER : ? YOUR ANSWER : ?
Transposition of transmission line is done to Reduce skin effect Balance line voltage drop Reduce corona Reduce line loss TRUE ANSWER : ? YOUR ANSWER : ?
The effect of electric shock on the human body depends on Duration of contact All of these Voltage Current TRUE ANSWER : ? YOUR ANSWER : ?
Under operating conditions, the secondary of a current transformer is always short ciruited because It is safe to human beings It protects the secondary ciruits It protects the primary ciruits It avoids core saturation and high voltage induction TRUE ANSWER : ? YOUR ANSWER : ?
The purpose of interpoles in DC machines is to nullify The cross-magnetizing effect of armature mmf Both the cross-magnetizing mmf and the reactance voltage The reactance voltage The demagnetizing effect of armature mmf TRUE ANSWER : ? YOUR ANSWER : ?
A fixed step by step procedure for finding the solution of a problem on computer is called Hardware Software Logic Algorithm TRUE ANSWER : ? YOUR ANSWER : ?