Power System MCQs (Part-10)

What is system redundancy in power systems?

A The duplication of critical components for reliability
B The reduction of power generation units
C The use of renewable energy exclusively
D The isolation of faults in the grid

What is reactive power?

A Power used to perform useful work
B Power required to maintain electric and magnetic fields in the system
C Power lost in transmission lines
D Power stored in batteries

What is active power?

A Power consumed to perform useful work
B Power lost in transmission lines
C Power used for voltage regulation
D Power required to maintain electric fields

What is the purpose of power factor correction?

A To reduce reactive power demand and improve system efficiency
B To improve power factor and voltage regulation
C To increase transmission line capacity
D To decrease the load on the power grid

What is distributed generation?

A Small-scale power generation near the point of use
B Centralized generation of electricity from nuclear power
C Large-scale generation from fossil fuels
D Generation from a single power station

What is demand-side management?

A Optimizing energy consumption patterns to reduce peak load demand
B Generating more power during peak demand
C Shutting down power plants to save energy
D Increasing transmission line capacity during low demand

What is energy forecasting used for?

A Estimating future electricity demand for generation planning
B Measuring real-time electricity consumption
C Reducing the number of power plants needed
D Increasing power generation efficiency

What does grid modernization aim to achieve?

A Upgrading infrastructure with smart technologies to improve efficiency and reliability
B Increase dependency on fossil fuels
C Replace substations with smaller units
D Reduce system resilience

What is the purpose of a capacitor bank in a power system?

A Supply reactive power to improve power factor and voltage regulation
B Store energy for long-term use
C Convert AC to DC power
D Increase system frequency

What is peak load in a power system?

A The highest power demand at a specific time
B The minimum power demand during off-peak hours
C The total energy generated by renewable sources
D The average load during a day

What is a virtual power plant (VPP)?

A A network of distributed energy resources managed as a single entity
B A centralized power generation unit
C A fossil fuel-based power plant
D A substation for managing voltage levels

What is the primary purpose of reactive power compensation?

A To maintain voltage stability in the power system
B To reduce active power consumption
C To increase line resistance
D To eliminate renewable energy integration

What does load forecasting help achieve?

A Predict future electricity demand for optimal grid planning
B Measuring real-time electricity consumption
C Reducing the number of power plants needed
D Increasing power generation efficiency

What is system efficiency in a power system?

A The effectiveness of delivering electricity with minimal losses
B The ability to reduce system frequency
C The capacity to handle unlimited loads
D The integration of renewable energy sources exclusively

What is active demand response?

A Adjusting consumer energy use during peak periods to balance supply and demand
B Increasing power generation during low demand
C Disconnecting non-essential loads permanently
D Reducing the capacity of renewable energy integration

What is the purpose of system redundancy?

A To ensure reliability by providing backup components
B To reduce transmission line losses
C To increase the number of substations
D To eliminate reactive power from the system

What is a blackout in a power system?

A A complete power outage in a specific region
B A temporary voltage drop
C An increase in system frequency
D A planned shutdown of non-essential loads

What is voltage regulation in a power system?

A Maintaining stable voltage levels despite changes in load
B Increasing the transmission line capacity
C Reducing the amount of reactive power
D Enhancing system frequency stability

What is the primary purpose of grid modernization?

A Upgrading grid infrastructure with smart technologies for efficiency and resilience
B Increasing the use of fossil fuels
C Reducing the number of distribution transformers
D Eliminating renewable energy from the grid

What is the primary goal of energy forecasting?

A Predicting future electricity demand for optimal grid planning
B Measuring real-time electricity consumption
C Reducing the number of power plants needed
D Increasing power generation efficiency