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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