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This set of Energy Conversion Multiple Choice Questions & Answers (MCQs) focuses on Energy Conversion Set 17

Q1 | Solar cells are made of
  • Sulphur
  • Silica
  • Antimony
  • Steel
  • Phosphorous
Q2 | A tidal power plant is being installed in India near
  • Goa
  • Gulf of Cambay
  • Bay of Bengal
  • Cochin
  • Vishakhapatnam
Q3 | In case the height of transmission towers is increased
  • the line capacitance and inductance will not change
  • the line capacitance will increase but line inductance will increase
  • the line capacitance will decrease and line inductance will increase
  • the line capacitance will decrease but line inductance will remain unaltered
  • None of the above
Q4 | Parr's classification of coal is based on
  • proximate analysis
  • ultimate analysis
  • orsat analysis
  • none of above
  • None of the above
Q5 | Water is fed to the boiler at
  • At 100 kg/cm2
  • At pressure more than the steam pressure
  • Less than atmospheric pressure
  • Atmospheric pressure
  • Slightly more than atmospheric pressure
Q6 | Which of the following location is not associated with super-thermal power plant?
  • Korba
  • Badarpur
  • Farakka
  • Rehand
  • None of the above
Q7 | Phase, advancers for power factor improvement are generally used for
  • Induction motors below 200 HP
  • Induction motors below 10 HP
  • Induction motors below 100 HP
  • Are lamps of high wattage
  • Transformers of 100 MVA and above
Q8 | The pressure of steam used in modern thermal power plants is upto
  • 100 kg/cm2
  • 15 kg/cm2
  • 250 kg/cm2
  • 350 kg/cm2
  • 170 kg/cm2
Q9 | In transmission system a feeder feeds power to
  • service mains
  • generating stations
  • distributors
  • All of the above
  • None of the above
Q10 | The average pH of the normal rainfall is usually
  • neutral
  • slightly acidic
  • slightly alkaline
  • None of the above
Q11 | Sodium sulphur batteries use electrolyte consisting of
  • solid aluminium oxide
  • dilute sulphuric acid
  • brine
  • KOH
  • None of the above
Q12 | Corona generally results in
  • Violet glow
  • Hissing noise
  • Production of ozone gas
  • All of the above
  • None of the above
Q13 | Natural gas is obtained
  • as by-product from blast furnace
  • as by-product from petroleum refining
  • from earth's surface usually along with crude
  • from ammonia
  • None of the above
Q14 | Which of the following cannot be the prime-mover for a generator of 120 MW capacity?
  • Steam turbine
  • Gas turbine
  • Kaplan turbine
  • Diesel engine
  • None of the above
Q15 | Which of the following will need highest level of illumination?
  • Railway platforms
  • Foyer for cinema halls
  • Bed rooms
  • Hospital wards
  • Proof reading
Q16 | Quad is a mesure of
  • photosynthesis
  • wind power
  • radioactive decay
  • energy
  • None of the above
Q17 | A Buchholz relay is used on
  • Transformer
  • Generators
  • Transmission lines
  • Cables
  • All of the above
Q18 | The supply and distribution of electrical energy in states is controlled by
  • NTPC
  • Electricity Board
  • BHEL
  • Department of Industries
  • Department of Science and Technology
Q19 | Pyrhelicometer measures
  • intensity of direct solar radiation
  • wind speed at an elevation
  • fission caused by thermal reutrons
  • total electromagnetic radiation cmitted by the sun
  • None of the above
Q20 | In any transmission line, the dimensions of constants B and C are
  • ohm and ohm
  • ohm and mho
  • mho and ohm
  • mho and mho
  • None of the above
Q21 | By increasing sag in the suspended transmission line
  • Tension in the line decreases
  • Tension in the line increases
  • Current carrying capacity of conductor increases
  • Current carrying capacity of conductor decreases
  • None of the above
Q22 | As compared to copper, the conductivity of aluminium is nearly
  • 85%
  • 60%
  • 40%
  • 80%
  • 20%
Q23 | The equipment used for pulverising is known as
  • Stoker
  • Ball mill
  • Burner
  • Coke oven
  • Hopper
Q24 | The dimensions of generalised constants A and D are
  • ohms and mhos
  • mhos and ohms
  • mhos and mhos
  • Both are dimensionless
  • ohms and ohms
Q25 | In a fuel cell positive electrode is of
  • oxygen
  • hydrogen
  • ammonia
  • carbon monoxide
  • None of the above