Electrical Network Design Quiz

What is the primary reason for using high voltage cables in long-distance electrical transmission?

• To increase the current

• To reduce energy loss

• To decrease the cable thickness

• To make installation easier

Which of the following materials is most commonly used for the conductor in high voltage cables?

• Copper

• Aluminum

• Gold

• Silver

What is the main purpose of the insulation layer in a high voltage cable?

• To protect against physical damage

• To reduce interference from external sources

• To prevent the loss of current

• To prevent electric shock and ensure safety

In electrical network design, what is the typical voltage level considered as "low voltage"?

• Below 1000V

• Below 600V

• Below 10,000V

• Below 5000V

Why are low voltage cables typically used in residential areas?

• Because they are cheaper

• Because they carry higher currents

• Because they are safer and easier to handle

• Because they can transmit power over longer distances without loss

What is the effect of increasing the cable diameter on the resistance of the cable in an electrical network?

• Increases the resistance

• Decreases the resistance

• Does not affect the resistance

• Initially decreases then increases the resistance

Which of the following is a disadvantage of using high voltage cables?

• Lower energy loss

• Reduced installation costs

• Increased risk of electric shock

• Easier maintenance

What type of current do high voltage transmission lines typically carry?

• Direct Current (DC)

• Alternating Current (AC)

• Pulsating Direct Current

• None of the above

Which component is essential for connecting different voltage levels in an electrical network?

• Resistor

• Capacitor

• Transformer

• Inductor

What is the primary consideration when designing an electrical network with both high and low voltage cables?

• Aesthetic appeal

• Cost

• Safety and compliance with standards

• Ease of installation