- The period of 1 KHS ac is ? (1 ms)
- When two quantities are in quadrature the phase angle between them will be ? (90)
- In R.L series circuit the power factor is ? (lagging)
- The phasor form of capacitive reactance is ? (XC<-90)
- The algebraic sum of the instantaneous phase voltage in a 3 phase circuit is ? (zero)
- The relationship between the line and phase voltages of a delta connected circuit is given by ? (VL=VP)
- A wattmeter indicates ? (true power)
- Candela is the unit of ? (luminous intensity)
- Magnetic materials are heated with the help of ? (hysteresis loss)
- The electrode of a direct arc furnace is made of ? (graphite)

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KSEB sub engineer answer key

### KSEB sub engineer psc solved questions Part 1

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