Electric Energy Transmission Quiz

What is the purpose of high-voltage power lines in transmitting electric energy?

• To provide internet connectivity to remote areas

• To generate electricity from wind power

• To cool down the surrounding environment

• To transmit electric energy over long distances with minimal loss due to resistance.

How do transformers help in power distribution from the power plant to homes?

• Transformers increase the frequency of electricity for better distribution

• Transformers convert electricity into different forms of energy for distribution

• Transformers step up voltage for transmission and step down voltage for safe use near homes.

• Transformers are used to store excess electricity for later use

What factors contribute to energy loss during the transmission of electric energy?

• Resistance in transmission lines, inefficient transformers, and leakage currents

• Zero leakage currents

• Perfectly insulated transmission lines

• Overly efficient transformers

Explain the process of electric energy transformation in the context of power distribution.

• Electric energy is created by burning fossil fuels in homes

• Electric energy is distributed through the air to power devices

• Electric energy is transmitted through water pipes to homes

• Electric energy is generated at power plants, transmitted through high-voltage power lines to substations, distributed through lower voltage lines to homes and businesses, and finally used to power devices.

What unit is commonly used to measure electricity consumption in homes?

• Volt

• Ampere

• Ohm

• kWh

Why are high-voltage power lines preferred over low-voltage lines for long-distance transmission?

• Reduced safety due to higher voltage levels posing a greater risk of electrical hazards.

• Higher energy losses and lower power carrying capacity due to increased resistance and voltage drop.

• Lower energy losses and higher power carrying capacity due to reduced resistance and voltage drop.

• Increased cost of installation and maintenance compared to low-voltage lines.

How do transformers help in reducing energy loss during transmission?

• By using transformers to convert energy into a different form during transmission

• By decreasing the voltage, which reduces energy loss due to resistance

• By increasing the current flow through the wires to boost energy efficiency

• By stepping up the voltage for long-distance transmission, which reduces the current flowing through the wires and subsequently decreases energy loss due to resistance.

What are the different stages involved in transmitting electric energy from a power plant to homes?

• Generation, Transmission, Distribution, Consumption

• Production, Distribution, Consumption, Utilization

• Generation, Transmission, Consumption, Utilization

• Generation, Distribution, Consumption, Utilization

What role do substations play in the distribution of electric energy?

• Substations regulate water flow in the distribution network

• Substations step down high-voltage electricity for local consumption and control the flow of electricity in the distribution network.

• Substations control traffic signals in the area

• Substations generate electricity for local consumption

Why is it important to monitor and regulate the voltage levels in power distribution systems?

• To reduce the efficiency of the power distribution system

• To encourage power outages

• To increase the risk of electrical fires

• It is important to monitor and regulate voltage levels in power distribution systems to ensure safety, prevent damage, maintain stability, and optimize energy efficiency.