Get premium membership and access questions with answers, video lessons as well as revision papers.
Here the coal is conveyed to a mill and crushed into a fine powder, this being termed
as pulverization. The pulverized coal is blown into the boiler where it mixes with the
supply of air for combustion. Heat is transferred to steam pipes located in the top
region of the boiler, these being initially fed with hot water from the boiler feed
pump; the hot water then gets converted to steam at high temperature and pressure.
This steam is fed to the steam turbines which are the prime movers for electric
generators.
In a nuclear power plant binding energy of a nucleus is released by fission, which
means breaking the nucleus into smaller fragments. Here one gram of the nucleus of
uranium is isotope 235U releases energy at the rate of 1 MW/per day whereas 2.6 tons
of coal produces the same amount of power in a conventional thermal power plant.
The process of fission is carried out in a nuclear reactor. Thus the nuclear reactor is a
very efficient source of energy because a small amount of fissile material produces a
large amount of energy.
gregorymasila answered the question on February 20, 2018 at 16:06
- What are different welding controls used in resistance welding?(Solved)
What are different welding controls used in resistance welding?
Date posted: February 20, 2018. Answers (1)
- With the aid of sketches explain the operation of a four stroke engine(Solved)
With the aid of sketches explain the operation of a four stroke engine.
Date posted: February 16, 2018. Answers (1)
- Name 3 drawing instruments commonly used in technical drawing and define the use of each tool(Solved)
Name 3 drawing instruments commonly used in technical drawing and define the use of each tool
Date posted: January 26, 2018. Answers (1)
- Highlight different methods of water treatment.(Solved)
Highlight different methods of water treatment.
Date posted: January 15, 2018. Answers (1)
- Name any five factors which determine choice of roof structure(Solved)
Name any five factors which determine choice of roof structure.
Date posted: January 1, 2018. Answers (1)
- Give five functional requirements of foundations(Solved)
Give five functional requirements of foundations.
Date posted: January 1, 2018. Answers (1)
- Explain how to test for silt content in sand.(Solved)
Explain how to test for silt content in sand.
Date posted: January 1, 2018. Answers (1)
- List five causes of unsealing of traps(Solved)
List five causes of unsealing of traps.
Date posted: January 1, 2018. Answers (1)
- State 5 principles of a good drainage system.(Solved)
State 5 principles of a good drainage system.
Date posted: January 1, 2018. Answers (1)
- What is critical Mach number in high speed flight?(Solved)
What is critical Mach number in high speed flight?
Date posted: December 29, 2017. Answers (1)
- Give reasons as to why a star delta starter is preferred with induction motor(Solved)
Give reasons as to why a star delta starter is preferred with induction motor
Date posted: November 6, 2017. Answers (1)
- State four advantages of using aluminum tubes over steel when making scaffolds.(Solved)
State four advantages of using aluminum tubes over steel when making scaffolds.
Date posted: October 11, 2017. Answers (1)
- Explain briefly two reasons why blinding is necessary.(Solved)
Explain briefly two reasons why blinding is necessary.
Date posted: October 11, 2017. Answers (1)
- Give four methods of transporting wet concrete to the required position.(Solved)
Give four methods of transporting wet concrete to the required position.
Date posted: October 11, 2017. Answers (1)
- List four factors that influence the cost of building work.(Solved)
List four factors that influence the cost of building work.
Date posted: October 11, 2017. Answers (1)
- Explain four factors that may improve reputation of a contractor.(Solved)
Explain four factors that may improve reputation of a contractor.
Date posted: October 11, 2017. Answers (1)
- Give two reasons for providing hoarding on a construction site.(Solved)
Give two reasons for providing hoarding on a construction site.
Date posted: October 11, 2017. Answers (1)
- List four factors to consider when selecting type of a roof structure.(Solved)
List four factors to consider when selecting type of a roof structure.
Date posted: October 11, 2017. Answers (1)
- State three possible causes of ground movement under foundation.(Solved)
State three possible causes of ground movement under foundation.
Date posted: October 11, 2017. Answers (1)
- List three welfare services for the operatives on a building site.(Solved)
List three welfare services for the operatives on a building site.
Date posted: October 11, 2017. Answers (1)