INTRODUCTION TO MECHANICAL SYSTEMS on 29.01.25

What is the primary source of energy in a thermal power plant?

• Fossil fuels

• Wind

• Sunlight

• Water

Which component of a thermal power plant is responsible for converting heat into mechanical energy?

• Turbine

• Boiler

• Condenser

• Generator

What is the purpose of a condenser in a thermal power plant?

• To cool the working fluid

• To generate electricity

• To increase the pressure of steam

• To control emissions

Why is it important to use a Rankine cycle in thermal power plants?

• It maximizes energy efficiency

• It's more cost-effective

• It improves environmental performance

• It reduces the need for maintenance

Which of the following processes involves the combustion of fossil fuels in a thermal power plant?

• Combustion

• Condensation

• Compression

• Evaporation

What are some environmental concerns associated with thermal power plants using coal as a fuel source?

• Air pollution and greenhouse gas emissions

• Water conservation and habitat preservation

• Noise pollution and visual impact

• Soil erosion and deforestation

Suppose a thermal power plant experiences a sudden decrease in the cooling water supply to the condenser. Analyze the potential consequences on the plant's efficiency and safety.

• Decreased efficiency, potential safety risks

• Increased efficiency, improved safety

• Decreased efficiency, decreased safety

• Unchanged efficiency, improved safety

Compare and contrast the advantages and disadvantages of using natural gas and coal as fuel sources in thermal power plants.

• Coal is more abundant but emits more greenhouse gases than natural gas.

• Natural gas is cleaner but more expensive than coal.

• Both natural gas and coal have similar environmental impacts.

• Natural gas is more efficient but less reliable than coal.

What is the primary source of energy in a hydroelectric power plant?

• Water

• Fossil fuels

• Wind

• Solar energy

What is the main purpose of a dam in a hydroelectric power plant?

• Generating electricity

• Irrigation

• Flood control

• Water purification