Which statement is not correct for the transmission line parameter R, L, G and C At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog G = I/R. R is the AC resistance per unit length of conductor C. TRUE ANSWER : ? YOUR ANSWER : ?
Where is the draft tube of a hydroelectric plant that is an airtight pipe located At the beginning of the penstock. In between the penstock and runner. In between the runner exhaust and the tail race. Near the surge tank. TRUE ANSWER : ? YOUR ANSWER : ?
The function of moderator in a nuclear reactor is to stop chain reaction. reduce temperature. absorb neutrons. reduce the speed of neutrons. TRUE ANSWER : ? YOUR ANSWER : ?
In coal fired thermal power stations, what are the electrostatic precipitators used for? To collect the dust particles from the flue gases To remove dust particles setting on the bus bar conductors in the station switch yard All of these To keep the air heaters clean TRUE ANSWER : ? YOUR ANSWER : ?
A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 750 MW 1250 MW 250 MW 500 MW TRUE ANSWER : ? YOUR ANSWER : ?
Cheapest plant in operation and maintenance is hydroelectric. diesel power. nuclear. steam power. TRUE ANSWER : ? YOUR ANSWER : ?
In thermal plant most of the energy is wasted in turbines condenser boiler ESP TRUE ANSWER : ? YOUR ANSWER : ?
At slack bus, which one of the following combinations of variables is not specified? Q and V P and V V and δ P and Q TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following produces the radio interference in communication lines? electro static induction electro magnetic induction None of these both 1 and 2 TRUE ANSWER : ? YOUR ANSWER : ?
For n bus power system size of Y bus matrix is (n-1)×(n-1) n×n (n-1)×(n-2) (n-2)×(n-2) TRUE ANSWER : ? YOUR ANSWER : ?