Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 4th Sem New 2140908 Electrical Power Generation Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2140908 Date: 13/12/2019
Subject Name: Electrical Power Generation
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Justify the statement, ?overall efficiency of steam power station is quite low?. 03
(b) For a steam power plant, explain functions of: (i) Air Pre Heater (ii) Cooling
Tower (iii)ESP (iv) ID Fan (v) Super heater (vi) Condenser (vii)
Economizer(viii) FD Fan
04
(c) With the help of schematic diagram explain the operation of Steam power
plant.
07
Q.2 (a) Compare conventional energy sources with non conventional energy
sources
03
(b) Classify hydro power station as per the height of head and explain in brief. 04
(c) Draw and explain schematic arrangement of diesel power plant. Give
advantages and disadvantages of diesel power plant
07
OR
(c) Explain the schematic of nuclear power station in detail with necessary
diagram
07
Q.3 (a) Write a short note on Nuclear Reactors 03
(b) Define tariff. List out different types of tariff and explain any one in brief. 04
(c) Define (i) Connected load (ii) Plant capacity factor (iii) Diversity factor (iv)
Maximum load (v) Plant use factor (vi) Base load (vii) Peak load
07
OR
Q.3 (a) Write short note on pyranometer 03
(b) Explain working principle of solar photovoltaic cell
04
(c) The monthly reading of consumer meter are as follow:
Maximum demand = 50KW
Energy consumed = 36,000KWh
Reactive energy = 23,400KVAR
If the tariff is Rs.80per KW of maximum demand pulse 8 paise per unit
pulse
0.5 paise per unit for each 1%of power factor below 86%, calculate the
monthly
bill of the consumer
07
Q.4 (a) Describe advantages and disadvantages of gas power plant 03
(b) A hydro plant has a reservoir having capacity of 5?10
8
m
3,
which supplies
water
at a head of 200m.If the efficiency is 70?, find the total power
generated. Assume density of water is 1000kg.
04
(c) Write short note on Solar Photovoltaic (SPV) system. 07
OR
Q.4 (a) Explain advantages and disadvantages of wind energy. 03
(b) Differentiate between Horizontal and Vertical Axis Wind
Turbine
04
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2140908 Date: 13/12/2019
Subject Name: Electrical Power Generation
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Justify the statement, ?overall efficiency of steam power station is quite low?. 03
(b) For a steam power plant, explain functions of: (i) Air Pre Heater (ii) Cooling
Tower (iii)ESP (iv) ID Fan (v) Super heater (vi) Condenser (vii)
Economizer(viii) FD Fan
04
(c) With the help of schematic diagram explain the operation of Steam power
plant.
07
Q.2 (a) Compare conventional energy sources with non conventional energy
sources
03
(b) Classify hydro power station as per the height of head and explain in brief. 04
(c) Draw and explain schematic arrangement of diesel power plant. Give
advantages and disadvantages of diesel power plant
07
OR
(c) Explain the schematic of nuclear power station in detail with necessary
diagram
07
Q.3 (a) Write a short note on Nuclear Reactors 03
(b) Define tariff. List out different types of tariff and explain any one in brief. 04
(c) Define (i) Connected load (ii) Plant capacity factor (iii) Diversity factor (iv)
Maximum load (v) Plant use factor (vi) Base load (vii) Peak load
07
OR
Q.3 (a) Write short note on pyranometer 03
(b) Explain working principle of solar photovoltaic cell
04
(c) The monthly reading of consumer meter are as follow:
Maximum demand = 50KW
Energy consumed = 36,000KWh
Reactive energy = 23,400KVAR
If the tariff is Rs.80per KW of maximum demand pulse 8 paise per unit
pulse
0.5 paise per unit for each 1%of power factor below 86%, calculate the
monthly
bill of the consumer
07
Q.4 (a) Describe advantages and disadvantages of gas power plant 03
(b) A hydro plant has a reservoir having capacity of 5?10
8
m
3,
which supplies
water
at a head of 200m.If the efficiency is 70?, find the total power
generated. Assume density of water is 1000kg.
04
(c) Write short note on Solar Photovoltaic (SPV) system. 07
OR
Q.4 (a) Explain advantages and disadvantages of wind energy. 03
(b) Differentiate between Horizontal and Vertical Axis Wind
Turbine
04
2
(c) Explain various components of wind energy conversion system with
diagram
07
Q.5 (a) What is energy? What are the different sources of energy? 03
(b) What is the necessary of Earthing? Explain in brief. 04
(c) Enlist various equipments used in substation & explain function of each
in brief
07
OR
Q.5 (a) What are the function of spillways and surge tank in hydro power plant. 03
(b) Write a short note on arc suppression coil earthing 04
(c) What is substation? Explain classification of substation 07
*************
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This post was last modified on 20 February 2020