Highest voltage for transmitting electrical power in India is (in 2008) 550 kV 765 kV 700 kV 400 kV TRUE ANSWER : ? YOUR ANSWER : ?
When transformers or switchgears are to be installed in a transmission line, the poles used are I type L type H type J type TRUE ANSWER : ? YOUR ANSWER : ?
The recovery voltage will be maximum for p.f. of 0.707 zero 0.5 unity TRUE ANSWER : ? YOUR ANSWER : ?
The Indian National Congress had its birth in the year 1875 1885 1775 1757 TRUE ANSWER : ? YOUR ANSWER : ?
The arc voltage in a C.B. is _____ with the arc current none of these leading by 90˚ in phase lagging by 90˚ TRUE ANSWER : ? YOUR ANSWER : ?
In a dry type transformer, accumulation of dust on the windings and core is likely to cause short circuiting of secondary winding reduction in heat dissipation corrosion of core material short circuiting of primary winding TRUE ANSWER : ? YOUR ANSWER : ?
Burden of the relay is _____ rating of relay current volt-amp. voltage watt TRUE ANSWER : ? YOUR ANSWER : ?
With the increase in mechanical force applied, the contact resistance remains unaltered increases is unpredictable decreases TRUE ANSWER : ? YOUR ANSWER : ?
Steady - state stability limit of a power system means that the system is capable of maintaining synchronism between machines and on external tie lines All of these a constant power flow throughout the frequency at 50 Hz exactly TRUE ANSWER : ? YOUR ANSWER : ?