Thermal Power Plants

Q. Explain the principle of working of thermal powe plant. Draw a labelled diagram to illustrate your answer.

Q.

Why are most of thermal power plants located near coal mines?

Q.

Ocean-thermal-energy conversion plants can operate if the temperature difference between the water at the surface and water at depths up to 2 kilometers are _____________ K or more.

1. 343

2. 298

3. 293

4. 313

Q.

Why are Thermal Power Stations usually located near a river ?

Q. Name two main sources of nuclear radiations. How are the nuclear radiations harmful?​

Q. (a) What is the difference between a thermal powr plant and a hydro power plant ?
(b) Which of the two causes serious air pollution and how ?

Q. The fuel which is not used at thermal power plants is :
(a) coal (b) uranium (c) natural gas (d) fuel oil

Q.

Why are thermal power plants set up near coal or Oilfield?

Q.

Why are most of the thermal power plants located near coal mines?

1. It's necessary to transport coal to power plant immediately else the coal will disintegrate.

2. It's more economical to transmit electricity than to transport coal.

3. All of these.

4. Coal gets wet when it comes in contact with air and is rendered useless.

Q. A large coal fired power station produces 2000MW of electrical energy.A wind turbine with 33 m blades can produce 300kW.
i)How many turbines would be needed to replace the power station
ii)Why, in actual practice this number of turbines coupd nit replace coal powered power station

Q.

In ocean-thermal-energy conversion plants, vapors of a volatile liquid like __ are used to run the turbine of a generator.

Q.

The fuel used in thermal power plants is:

1. water

2. uranium

3. biomass

4. fossil fuel

Q.

Give two examples of renewable and non-renewable sources of energy.

Q.

Statement 1: Dynamo is used to generate electricity in thermal power plant, a hydropower plant and wind energy plant.

Statement 2: Dynamo converts mechanical energy from turbine to electrical energy.

1. Statement 1 and statement 2 are correct, but statement 2 is not the reason for statement 1.

2. Statement 1 is correct and statement 2 is incorrect.

3. Statement 1 and statement 2 are correct, statement 2 is the reason for statement 1.

4. Both statements are incorrect.

Q. Through which process does power generation takes place in thermal power plants?

1. Coal burnt - water converted to steam - turbine rotates - electricity produced
2. Wind blows - wind converted to steam - turbine rotates - electricity produced
3. None of these.
4. Two nuclei combine - steam is formed - turbine rotates - electricity produced

Q. Fuel used in a thermal power plant is:

1. Water
2. Uranium
3. Biomass
4. Fossil fuel

Q. What are the various fuels which are used to generate electricity in a thermal power plant?

Q.

Fuel used in thermal power plants is

1. Water

2. Biomass

3. Fossil fuel

4. Uranium

Q.

What kind of energy transformation takes place during power generation during a thermal power station.

Q. What is the name of device which is used to convert mechanical energy into electrical energy?

1. Dynamo
2. Heater
3. Boiler
4. Turbine

Q.

Name any two nuclear radiations and describe their harmful effects on the human body.

Q. Other than thermal power plant which power plant use thermal energy for power generation ? In what different ways is thermal energy obtained.

Q.

Name the most penetrating nuclear radiation. Mention its harmful effects on human beings.

Q.

Which of the following is not a renewable source of energy?

1. Solar radiations

2. Geothermal energy

3. Coal

4. Ocean waves

Q.

How does a biomass generator work?

Q.

What are OTEC power plants? How do they operate?

Q.

A large coal-fired power station produces 2000 MW of electrical energy. A wind turbine with 33 m blades can produce 300 kw.
(a) How many turbines would be needed to replace the power station?
(b) Why, in actual practice, this number of turbines could not replace the coal-fired power station ?

Q.

Which of the common parts are necessary for generating electricity in thermal, hydro, wind and geothermal plants?

1. Turbine

2. All of these

3. Boiler

4. Dynamo

Q. What is the significance of word 'thermal' in thermal power generation?

1. All of the above.
2. Fuel is burnt and heat is produced.
3. Thermal refers to thermometer.
4. Fuel is heated and then burnt.

Q.

When the fast moving wind rotates the blades of a windmill its shaft rotates the armature inside the generator producing electric current.

1. True
2. False