1. The main objective of energy management is to:
(A) Increase energy consumption
(B) Optimize energy use and reduce costs
(C) Promote fossil fuel usage
(D) Increase production time
2. The first step in an energy management program is:
(A) Equipment maintenance
(B) Energy audit
(C) System shutdown
(D) Staff training
3. An energy audit helps to:
(A) Identify areas of energy waste
(B) Increase power demand
(C) Reduce system efficiency
(D) Decrease system automation
4. The Energy Management System (EMS) is used to:
(A) Control and monitor energy use in real-time
(B) Replace human operators
(C) Generate mechanical energy
(D) Store electrical energy
5. The main components of an Energy Management System (EMS) include:
(A) Sensors, controllers, actuators, and software
(B) Transformers and generators only
(C) Motors and alternators
(D) Power cables only
6. Load management in energy systems means:
(A) Shifting or reducing electricity usage during peak demand
(B) Increasing load during off-peak hours
(C) Maintaining constant power output
(D) Disconnecting power permanently
7. Demand-side management (DSM) aims to:
(A) Reduce or shift consumer electricity demand
(B) Increase grid voltage
(C) Improve generator output
(D) Eliminate consumer control
8. Peak shaving is a technique used to:
(A) Lower the peak power demand
(B) Increase system losses
(C) Overload the transformer
(D) Increase fuel usage
9. Energy intensity is defined as:
(A) Energy consumed per unit of output
(B) Total energy capacity
(C) Power factor of a system
(D) Voltage to current ratio
10. Power factor improvement helps in:
(A) Reducing system losses
(B) Increasing reactive power
(C) Decreasing system efficiency
(D) Increasing transmission distance
11. The unit of energy consumption in industry is typically measured in:
(A) Joules
(B) kWh
(C) Ampere
(D) Volt
12. Supervisory Control and Data Acquisition (SCADA) systems are used for:
(A) Monitoring and controlling industrial energy systems
(B) Power generation only
(C) Manual control of energy
(D) Circuit protection
13. The key performance indicator (KPI) in energy management is:
(A) Energy efficiency ratio
(B) Transmission loss
(C) Transformer impedance
(D) Fault current
14. The ISO standard for energy management systems is:
(A) ISO 14001
(B) ISO 50001
(C) ISO 9001
(D) ISO 45001
15. Building Energy Management Systems (BEMS) are primarily used in:
(A) Commercial and residential buildings
(B) Power plants only
(C) Transportation systems
(D) Renewable farms
16. Automatic control systems help energy management by:
(A) Reducing manual intervention and optimizing performance
(B) Increasing downtime
(C) Causing energy waste
(D) Reducing system efficiency
17. Energy conservation differs from energy efficiency because it:
(A) Involves reducing energy use without affecting performance
(B) Uses more energy to maintain efficiency
(C) Focuses on increasing load
(D) Has no impact on cost
18. Time-of-use (TOU) pricing encourages consumers to:
(A) Shift usage to off-peak hours
(B) Use more energy during peak hours
(C) Increase total consumption
(D) Keep load constant
19. A smart grid supports energy management by:
(A) Enabling two-way communication between consumers and utilities
(B) Operating without sensors
(C) Using manual controls only
(D) Ignoring real-time data
20. Energy monitoring involves:
(A) Continuous measurement of power consumption
(B) Random checking of loads
(C) Measuring only during peak times
(D) Manual observation
21. Control strategies for energy management include:
(A) On-off control, PID control, and fuzzy logic
(B) Random switching
(C) Manual adjustment only
(D) Constant voltage operation
22. PID controllers are commonly used for:
(A) Maintaining desired setpoints in control systems
(B) Increasing system instability
(C) Overloading circuits
(D) Disconnecting sensors
23. Energy benchmarking helps in:
(A) Comparing energy performance with standards or peers
(B) Increasing power losses
(C) Reducing monitoring accuracy
(D) Removing control systems
24. Load forecasting assists energy management by:
(A) Predicting future energy demand
(B) Measuring temperature
(C) Calculating resistance
(D) Estimating voltage drops
25. Renewable integration in energy management aims to:
(A) Balance supply and demand efficiently
(B) Increase fossil fuel dependency
(C) Disconnect variable sources
(D) Reduce automation
26. Energy storage systems help energy management by:
(A) Storing excess energy for later use
(B) Increasing real-time demand
(C) Reducing energy quality
(D) Preventing renewable integration
27. The primary control parameter in HVAC energy systems is:
(A) Temperature
(B) Voltage
(C) Current
(D) Power factor
28. Power quality monitoring is essential for:
(A) Ensuring stable and efficient operation of electrical systems
(B) Increasing harmonics
(C) Reducing voltage regulation
(D) Decreasing efficiency
29. Automated Demand Response (ADR) is used to:
(A) Automatically reduce load during peak times
(B) Increase energy cost
(C) Decrease grid reliability
(D) Disable monitoring
30. The main goal of energy management and control systems is to:
(A) Achieve optimal energy use with minimal waste
(B) Increase production regardless of energy use
(C) Reduce monitoring
(D) Eliminate renewable sources