Diesel power plants generate electricity by burning diesel fuel in an internal combustion engine and using the resulting mechanical energy to drive a generator. They are widely employed because of their portability features and their capability to provide reliable power in remote locations or during emergencies. Diesel power plants have quick start-up times and are flexible in capacity. However, they require a continuous supply of diesel fuel, which can be a logistical challenge, and emit pollutants that contribute to air pollution. Diesel power plants are generally used as backup power sources if the main supply is unavailable. They are usually found in hospitals and other industrial facilities as backup sources if the primary power is unavailable. Electrical Engineering Online shares top 10+ multiple choice questions on Diesel Power Station.
The type of engine that is commonly used in a diesel power station
The type of engine that is widely used in a diesel power station
- Spark-ignition engine
- Steam engine
- Gas turbine engine
- Compression-ignition engine
Correct Answer: 4. Compression-ignition engine
Explanation: Diesel power stations use compression-ignition engines, commonly known as diesel engines, to convert the chemical energy of diesel fuel into mechanical energy.
The purpose of the generator in a diesel power station is
The goal of the generator in a diesel power station is
- To convert mechanical energy into electrical energy
- To control the flow of diesel fuel
- To convert electrical energy into mechanical energy
- To increase the pressure of diesel fuel
Correct Answer: 1. To convert mechanical energy into electrical energy
Explanation: The generator in a diesel power station converts the mechanical energy the diesel engine produces into electrical energy.
The typical voltage of electricity generated in a diesel power station is
The standard voltage of electricity generated in a diesel power station is
- 110 V
- 220 V
- 230 V
- 480 V
Correct Answer: 4. 480V
Explanation: Diesel power stations often generate electricity at a voltage of 480V, which is then stepped up using transformers for transmission and distribution.
The primary advantage of a diesel power station is
The major benefit of a diesel power station is
- Low operating costs
- Environmentally friendly
- High energy efficiency
- Quick start-up time
Correct Answer: 4. Quick start-up time
Explanation: Diesel power stations can start quickly and provide power almost instantaneously, making them suitable for emergencies or remote locations.
The typical lifespan of a diesel power station is about
The typical lifespan of a diesel power station is about
- 10-15 years
- 20-30 years
- 40-50 years
- 60-70 years
Correct Answer: 2. 20-30 years
Explanation: Diesel power stations can last approximately 20-30 years with proper maintenance and care.
What is the typical percentage efficiency of a diesel power station is
What is the standard percentage efficiency of a diesel power station is
- 20-30%
- 40-50%
- 60-70%
- 80-90%
Correct Answer: 3. 60-70%
Explanation: Diesel power stations generally have an efficiency range of 60-70%, converting fuel energy into electrical energy.
The purpose of the radiator in a diesel power station is to
The goal of the radiator in a diesel power station is to
- Cool the diesel engine
- Preheat the fuel
- To increase the pressure of the fuel
- To control the speed of the engine
Correct Answer: 1. To cool the diesel engine
Explanation: The radiator in a diesel power station helps dissipate excess heat from the engine coolant to maintain proper operating temperatures.
Which of the below mentioned is a disadvantage of diesel power stations
Which of the below mentioned is a disadvantage of diesel power stations
- High operating costs
- Limited fuel availability
- Low energy efficiency
- Environmental pollution
Correct Answer: 4. Environmental pollution
Explanation: Diesel power stations emit pollutants such as nitrogen oxides and particulate matter, contributing to environmental pollution.
The exhaust system in a diesel power station serves to
The exhaust system in a diesel power station helps to
- Reduce fuel consumption
- Increase the efficiency of the engine
- Remove harmful gases from the engine
- Control the speed of the engine
Correct Answer: 3. To remove harmful gases from the engine
Explanation: The exhaust system in a diesel power station is designed to remove and safely discharge the combustion by-products and toxic gases from the engine.
Which of the below-mentioned is a typical application of diesel power stations
Which of the below-mentioned is a typical application of diesel power stations
- Residential heating systems
- Solar power generation
- Nuclear power plants
- Backup power for hospitals
Correct Answer: 4. Backup power for hospitals
Explanation: Diesel power stations are often used as backup power sources for critical facilities such as hospitals, ensuring uninterrupted power supply during outages.
The typical size range of a diesel power station
The typical size range of a diesel power station
- Few kilowatts to several megawatts
- Few megawatts to several gigawatts
- Few watts to several kilowatts
- Few gigawatts to several terawatts
Correct Answer: 1. Few kilowatts to several megawatts
Explanation: Diesel power stations can range from a few kilowatts to several megawatts, depending on the intended application and power demand.
The factors that affect the efficiency of a diesel power station
The factors that affect the efficiency of a diesel power station
- Engine size
- Ambient temperature
- Fuel quality
- All of the above
Correct Answer: 4. All of the above
Explanation: Engine size, ambient temperature, and fuel quality are different factors that can affect the efficiency of a diesel power station.