SSC JE Electrical 2018 with solution SET-1
The main drawback of resistance welding is

Difficult shapes and sections cannot be welded
High initial as well as High maintenance cost
Only similar metals can be welded
None of these

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SSC JE Electrical 2018 with solution SET-1
 Calculate the phase angle between the voltage and current phasor of a series RL circuit having the resistance of 65 Ohms and Inductive reactance of 37.53 ohms when supplied by a frequency of 60 Hz

45°
30°
60°
15°

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SSC JE Electrical 2018 with solution SET-1
 A hysteresis Motor

Is not a self-starting motor
Need DC excitation
Is a constant speed motor
Can not be run in reverse speed

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