COMMERCIAL WIRING - Quiz

1) Which is the advantage of AC drive?

Power and control circuit are simple Speed and design ratios have upper limits Produce a simulated wave form Heavy windings required

2) Which colour LED indicates the fault occurred in drives?

Green Yellow Red Blue

3) What is the expansion of UPS?

Uninterrupted Power System Uninterrupted Power Supply Uninterrupted Power Solution Uninterrupted Power Section

4) What is the relation between back up time and capacity of the battery of an UPS?

Capacity of battery increases back up time increases Capacity of battery increases back up time decreases Capacity of battery decreases back up time increases Capacity of battery has no relations with back up time

5) Which component is connected across the transformer winding of an UPS for protection from lightning?

Diode Transistor Triode Polyster capacitor