What is the maximum current allowed to be drawn from the secondary of a 2 kVA step- down transformer with a turns ratio of four to one if connected across a 440 volt line?

Correct Answer: Option B — 18.1 amps

With a 4:1 step-down ratio and a 440-volt primary, the secondary voltage is 110 volts. The maximum secondary current is calculated by dividing the transformer's apparent power rating of 2,000 VA (2 kVA) by the secondary voltage of 110 volts, yielding approximately 18.1 amps.