Name of the College : Noorul Islam College of Engineering
University : Anna University
Degree : B.E
Department : Electronics and Instrumentation Engineering
Subject Code/Name : EI 1007 – Power Plant Instrument
Year : IV
Semester : VII
Document Type : Question Bank
Website : niceindia.com
Download Model/Sample Question Paper :https://www.pdfquestion.in/uploads/niceindia.com/3010-EI_1007_Power_plant_Instrumentation_.pdf
NICE Power Plant Instrument Question Paper
1.Definition cogeneration :
A production of electricity and useful thermal energy simultaniously from a common fuel source. The rejected heat from industrial processes can be used to power an electric generator. Surplus heat from an electric generator can be used for industrial processes, or for heating purposes.
Related : Noorul Islam College of Engineering CE1211 Solid & Fluid Mechanics B.E Question Bank : www.pdfquestion.in/3008.html
3. What is the advantage of Hydro power plant?:
**No pollution
**No need of fuel
4. Advantage of thermal power plant :
1. The fuel used is quite cheap.
2. Less initial cost as compared to other generating plants.
3. It can beinstalled at any place iirespective of the existence of coal. The coal can be transported to the site of the plant by rail or road.
4. It require less space as compared to Hydro power plants.
5. Cost of generation is less than that of diesel power plants.
5. Disadvantage of thermal power plant :
1. It pollutes the atmosphere due to production of large amount of smoke and fumes.
2. It is costlier in running cost as compared to Hydro electric plants.
6. Why we can’t completely depend on solar and wind power plant?:
It is fully depend on the natural.
7. What is the renewable source of energy?:
Water, solar, wind
8. What is the nonrenewable source of energy?:
**Petroleum
**Coal
9. What are varies method of power generation?:
**Thermal power plant
**Wind power plant
**Hydro power plant
10. What is meant by pulversing of coal?:
Crushing of coal and. during carbonization process
11. Give major building block of thermal power plant?:
**Coal and ash handling
**Steam generation
12. Mention the use of conveyer?:
Transport the material from one place to other.
13. Water the pollution occurs due to thermal power plant?:
**Water pollution
**Air pollution
14. Application of co generation :
**Efficiency Gains
**Moderate Temperature
**Saturated Steam
15. What are the fuels used in nuclear power plant?:
U-238
16. Define fusion :
Nuclear fission is the splitting of the nucleus of an atom into parts (lighter nuclei) often producing free neutrons and other smaller nuclei, which may eventually produce photons (in the form of gamma rays). Fission of heavy elements is an exothermic reaction which can release large amounts of energy both as electromagnetic radiation and as kinetic energy of the fragments (heating the bulk material where fission takes place). Fission is a form of elemental transmutation because the resulting fragments are not the same element as the original atom.
17. Define Chain reactions :
Many heavy elements, such as uranium, thorium, and plutonium, undergo both spontaneous fission, a form of radioactive decay and induced fission, a form of nuclear reaction. Elemental isotopes that undergo induced fission when struck by a free neutron are called fissionable; isotopes that undergo fission when struck by a thermal, slow moving neutron are also called fissile. A few particularly fissile and readily obtainable isotopes (notably 235U and 239Pu) are called nuclear fuels because they can sustain a chain reaction and can be obtained in large enough quantities to be useful
18. Define nuclear reactor :
Nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear bomb, in which the chain reaction occurs in a fraction of a second and is uncontrolled causing an explosion
19. Define fission :
The splitting apart of an atom’s nucleus, releasing a large amount of heat energy.
20.Importance of instrumentation in thermal power plant :
Measure the variables to control
Unit II :
21. Define Humidity :
It is basically moisture content in air or it is the quantity of water vapour retained by gas.
22. Define Absolute Humidity :
Weight of water vapour in unit wait of gas.
H=Wr / Wg
23. Define Hygrometer :
Used to measure the moisture content in air. It also used to measure humidity.
24. What are the various methods of measurement of moisture :
Based on the weight of the particle
Based on the resistance, capacitance,
25. What are the different types of orifice?:
**Concentric orifice
**Eccentric
**Segmental
**Quadrant edge