What happens when the starter takes up metallic resistance?(a) voltage fluctuates from high to low(b) voltage fluctuates between fixed upper and lower limits(c) current fluctuates from high to low(d) current fluctuates between fixed upper and lower limitsI had been asked this question at a job interview.Origin of the question is Motor Starters, Calculation of Resistance Steps & Design of Field Regulators in division Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines

What happens when the starter takes up metallic resistance?(a) voltage

1.	What happens when the starter takes up metallic resistance?(a) voltage fluctuates from high to low(b) voltage fluctuates between fixed upper and lower limits(c) current fluctuates from high to low(d) current fluctuates between fixed upper and lower limitsI had been asked this question at a job interview.Origin of the question is Motor Starters, Calculation of Resistance Steps & Design of Field Regulators in division Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines
Answer» The correct CHOICE is (d) current fluctuates between fixed upper and lower limits To elaborate: The starter actually picks up either LIQUID rheostat or metallic resistance during its operation. The starter TAKES up metallic resistance when the resistance is to be varied in steps. When taken with resistance steps, the current fluctuated between upper and lower limits.

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