CAT 1

Which one of the following is not a type of a transformer?

• Core

• Winding

• Wheel

• Oil

-is the effect of high voltage on overhead transmission lines

What is the primary function of a transformer?

• Frequency modulation

• Power storage

• Current generation

• Voltage conversion

Which component is essential for the operation of a transformer?

• Resistor

• Capacitor

• Inductor

• Core

In which application are transformers commonly used?

• Radio transmission

• Water purification

• Heating systems

• Television broadcasting

What type of transformer is used to step up voltage?

• Isolation transformer

• Auto transformer

• Step-down transformer

• Step-up transformer

Which of the following factors affects the efficiency of a transformer?

• Temperature

• Frequency

• Load

• All of the above

What is the typical voltage range for a step-up transformer?

• 0-10V

• 100-1000V

• 10-100V

• 1000-10000V

Which of the following factors affects the efficiency of a transformer?

• Frequency

• All of the above

• Load

• Temperature

What type of transformer is used to reduce voltage levels?

• Isolation transformer

• Auto transformer

• Step-down transformer

• Step-up transformer