objective for electrical Questions
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Transcript of objective for electrical Questions
1.In India largest thermal power station is located at
Kota
Sarni
Chandrapur
NeyveliANSWER : : Chandrapur
Explanation :
2.In a regenerative feed heating cycle, the greatest economy is affected
when steam is extracted from only one suitable point of steam turbine
when steam is extracted from several places in different stages of steam turbine
when steam is extracted only from the last stage of steam turbine
when steam is extracted only from the first stage of steam turbineANSWER : : when steam is extracted from several places in different stages of steam turbine
Explanation :
3.Thorium Breeder Reactors are most suitable for India because
these develop more power
its technology is simple
abundance of thorium deposits are available in India
these can be easily designedANSWER : : abundance of thorium deposits are available in India
Explanation :
4.The maximum percentage gain in Regenerative feed heating cycle thermal efficiency
increases with number of feed heaters increasing
decreases with number of feed heaters increasing
remains same unaffected by number of feed heaters
none of the above
ANSWER : : increases with number of feed heaters increasing
Explanation :
5.Regenerative cycle thermal efficiency
is always greater than simple Rankine thermal efficiency
is greater than simple Rankine cycle thermal efficiency only when steam is bled
rticular pressure
is same as simple Rankine cycle thermal efficiency
ANSWER : 4 is always less than simple Rankine cycle thermal efficiency
Exam2win > Engineering > Electrical Engineering > Power Plant Engineering > part1 Part 1 Part 2
Part 3
Part 4
Power Plant Engineering QUESTIONS AND ANSWERS
1
2
3
4
5
Electrical Engineering : Power Plant Engineering QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :
6.India's first nuclear power plant was installed at
Tarapore
Kota
Kalpakkam
none of the aboveANSWER : : Tarapore
Explanation :
7.The main source of production of biogas is
human waste
wet cow dung
wet livestock waste
all aboveANSWER : : all above
Explanation :
8.The percentage O2 by Veight in atmospheric air is
18%
23%
77%
79%ANSWER : : 23%
Explanation :
9.The proper indication of incomplete combustion is
high CO content in flue gases at exit
high CO2 content in flue gases at exit
high temperature of flue gases
the smoking exhaust from chimneyANSWER : : high CO content in flue gases at exit
Explanation :
10.In fuel cell, the ______ energy is converted into electrical energy.
mechanical
chemical
heat
soundANSWER : : chemical
Explanation :
Exam2win > Engineering > Electrical Engineering > Power Plant Engineering > part1 Part 1 Part 2
Part 3
Part 4
Power Plant Engineering QUESTIONS AND ANSWERS
1
2
3
4
5
Electrical Engineering : Power Plant Engineering QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :
11.Rankine efficiency of a steam power plant
improves in summer as compared to that in winter
improves in winter as compared to that in summer
is unaffected by climatic conditions
none of the above
12.Rankine cycle efficiency of a good steam power plant may be in the range of
15 to 20 per cent
35 to 45 per cent
70 to 80 per cent
90 to 95 per ceut
13.In Rankine cycle the work output from the turbine is given by
change of internal energy between inlet and outlet
change of enthaply between inlet and outlet
change of entropy between inlet and outlet
change of temperature between inlet and outlet
14.Solar thermal power generation can be achieved by
using focusing collector or heliostates
using flat plate collectors
using a solar pond
any of the above system
15.
wood, animal wastes and agriculture wastes
solar, wind and biomass
either (a) or (b)
neither (a) or (b)
16.Carnot cycle comprises of
two isentropic processes and two constant volume processes
two isentropic processes and two constant pressure processes
two isothermal processes and three constant pressure processes
none of the above
17.The percentage 02 by volume in atmosphere air is
21%
23%
77%
79%
18.Mercury is a choice with steam in binary vapour cycle because it has
higher critical temperature and pressure
higher saturation temperature than other fluids
relatively low vapourisation pressure
all above
19.In regenerative cycle feed water is heated by
exhaust gases
heaters
draining steam from the turbine
all above
20.In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed
heating
decreases with increase in Rankine cycle efficiency
increases with increase in Rankine cycle efficiency
is unaffected by increase in Rankine cycle efficiency
none of the above
11.Rankine efficiency of a steam power plant
improves in summer as compared to that in winter
improves in winter as compared to that in summer
is unaffected by climatic conditions
none of the aboveANSWER : : improves in winter as compared to that in summer
Explanation :
12.Rankine cycle efficiency of a good steam power plant may be in the range of
15 to 20 per cent
35 to 45 per cent
70 to 80 per cent
90 to 95 per ceutANSWER : : 35 to 45 per cent
Explanation :
13.In Rankine cycle the work output from the turbine is given by
change of internal energy between inlet and outlet
change of enthaply between inlet and outlet
change of entropy between inlet and outlet
change of temperature between inlet and outletANSWER : : change of enthaply between inlet and outlet
Explanation :
14.Solar thermal power generation can be achieved by
using focusing collector or heliostates
using flat plate collectors
using a solar pond
any of the above systemANSWER : : any of the above system
Explanation :
15.
wood, animal wastes and agriculture wastes
solar, wind and biomass
either (a) or (b)
neither (a) or (b)ANSWER : : wood, animal wastes and agriculture wastes
Explanation :
21.The overall efficiency of thermal power plant is equal to
Rankine cycle efficiency
Carnot cycle efficiency
Regenerative cycle efficiency
Boiler efficiency x turbine efficiency x generator efficiencyANSWER : : Regenerative cycle efficiency
Explanation :
22.Reheat cycle in steam power plant is used to
utilise heat of flue gases
increase thermal efficiency
improve condenser performance
reduce loss of heatANSWER : : increase thermal efficiency
Explanation :
23.The energy radiated by sun on a bright sunny day is approximately
700 W/m2
800 W/m2
1 kW/m2
2 kW/m2ANSWER : : 1 kW/m2
Explanation :
24.Rankine cycle operating on low pressure limit ofpi an 1 high pressure limit of p2
has higher the rnal efficiency than the carnot cycie operating between same
ure limits
has lower the"nal efficiency than carnot cycle operating between same pressure
?ANSWER : 3 has same thermal efficiency as carnot cycle operating between same pressure limits
Explanation :