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If the characteristic Impedance is equal to load Impedance then…… a) voltage will be increased b) power transmission is zero c) …… d) max. power is transmission to load
2 5703ynchronous M/C with under excitation with reactive power absorption , acts as a) synch. Motor b) synch gen c) synchr capacit
4 5543Why size of HT cable is less then LT cable inspite of the fact that voltage is higher in HT cable?
L&T,
2 8308A 25MVA 3300/400V T/F is termed as per winding is …… a) primary 3300V & Secondary 400V b) primary 3300V & low voltage winding 400V c) High voltage winding 3300V & Secondary 400V d) High voltage winding 3300V & low voltage winding 400V
4 6691Resistor switching is used in which type Circuit Breaker ? a) oil filled CB b) Air blast CB c) Gas filled CB
11 31822In EHV tranm. The conductors are …….. a) Cu roads b) Cu bars with Si c) Cu tube with Si plate
2 5696the max. power will be transferred if …… a) sending end vol. is high b) receiving end v is high c)…….. d) corona loss is least
2 5587. The string effcy in AC sys is 80% Then for same power, the string effcy in dc sys is a) less than 80% b) 80% c) more than 80% d) zero
1 2772The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length
1 3826According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
1974Post New Electrical Engineering Questions
whats the differece between Exd and Exe
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
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State the formula for overall efficiency of thermal power station
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could you measure current in parallel?
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Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
what is model question rrb junior engineer electrical gr.II
1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be
Ceiling Fan and Storage type water heater. Discuss
SUTIABLE FOR ohm's law super conductor
