KSEB sub engineer psc solved questions Part 2

• Induction heating process is based on ? (electromagnetic induction principle)
• The basic electrical requirements in arc welding is that there should be ?  (high open circuit voltage)
• The speed/time curve for city service has no--------period ?  (free running)
• A train weights 500 tone has a mass of ?  (500 tone)
• Commutater in a dc machine can converts ?  (ac to dc and dc to ac)
• The polarity of dc generator is reversed by reversing the direction of ?  (field current)