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Wireman Set-1
Commercial wiring
12

Commercial wiring MCQ with Answers

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

Green

Yellow

Red

Blue

Answer is:

Red

Commercial wiring MCQ with Answers

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13) What is the expansion of UPS?

Uninterrupted Power System

Uninterrupted Power Supply

Uninterrupted Power Solution

Uninterrupted Power Section

Answer is:

Uninterrupted Power Supply

14) 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

Answer is:

Capacity of battery increases back up time increases

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

Diode

Transistor

Triode

Polyster capacitor

Answer is:

Polyster capacitor

16) Which electrical / electronic device requires ups?

Air conditioner

Micro wave oven

Compute

Television

Answer is:

Compute

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