Electrical Distribution and Transformer Fundamentals Quiz

Test your knowledge on power systems with questions about transformers, circuits, and electrical distribution. Explore now!

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Which of the following materials is commonly used as an insulator in electrical distribution?

Copper

Aluminum

Rubber

Steel

What is the function of a transformer in an electrical distribution system?

To increase current

To decrease voltage

To decrease current

To increase voltage

What is the purpose of a fuse in an electrical circuit?

To regulate voltage

To increase resistance

To prevent overcurrent

To amplify current

Which of the following is a characteristic of an alternating current (AC) system?

Direct flow of electrons

Constant voltage

Voltage and current vary periodically

High voltage loss over long distances

Which type of transformer is commonly used to step up or step down voltage in electrical distribution?

Isolation transformer

Distribution transformer

Step-up transformer

Step-down transformer

What is the main function of a distribution system in electrical engineering?

To regulate frequency

To transmit electrical energy over long distances

To distribute electrical power to end-users

To generate electricity

Which of the following is a unit of electrical power?

Volt

Ampere

Watt

Ohm

What is the term for the phenomenon where a sudden rush of current flows into an electrical system after a disruption?

Overload

Short circuit

Power surge

Ground fault

What is the primary function of a circuit breaker?

To convert AC to DC

To interrupt the flow of current in case of overload

To stabilize voltage fluctuations

To increase the current flow

#10

Which of the following is a component of a distribution transformer?

Armature

Rotor

Core

Brushes

#11

Which type of electrical distribution system uses a single-phase AC supply?

Three-phase system

Split-phase system

Delta system

Wye system

#12

What is the purpose of the core in a transformer?

To provide mechanical support

To conduct electricity

To increase voltage

To provide a path for magnetic flux

#13

In a three-phase electrical system, what is the phase difference between each phase?

90 degrees

120 degrees

180 degrees

360 degrees

#14

What is the unit of measurement for electrical resistance?

Watt

Volt

Ampere

Ohm

#15

What is the effect of adding more windings to the primary coil of a transformer?

Decrease in voltage

Increase in voltage

Decrease in current

Increase in current

#16

What is the efficiency of an ideal transformer?

50%

75%

100%

Depends on the load

#17

What is the phenomenon where a material allows the flow of electrical current with little resistance called?

Insulation

Resistance

Conduction

Induction