Power Generation and Substation
Electrician Trade Theory, Module-11
Power Generation and Substation
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Q1: Which fuel is available in plenty in India for power generation?
- Coal
- Diesel
- Gas oil
- Gasoline
Q2: Which is the conventional power generation?
- Wind power generation
- Tidal power generation
- Solar power generation
- Thermal power generation
Q3: Which material is used in solar cell?
- Silicon
- Copper
- Antimony
- Phosphorus
Q4: What is the name of the atomic material used for nuclear fission in nuclear power station?
- Silicon
- Thorium
- Antimony
- Cadmium
Q5: What is the name of the material used for making photovoltaic cell?
- Silicon
- Arsenic
- Antimony
- Germanium
Q6: Which is the non conventional energy source?
- Wind
- Water
- Steam
- Diesel
Q7: Which is the natural source of energy?
- Sun
- Heat
- Coal
- Biogas
Q8: Name the constituent marked as 'X' of the schematic arrangement of hydro electric plant.
- Penstock
- Surge tank
- Valve house
- Power house
Q9: Which is a non-conventional energy source?
- Lignite
- Sun rays
- Stored water
- Pulverized coal
Q10: What is the main disadvantage of non-conventional power generation?
- Poor efficiency
- No constant generation
- Can use only light loads
- Heavy load cannot be operated
Q11: Which power generation requires heavy water treatment plant?
- Hydel power generation
- Diesel power generation
- Thermal power generation
- Nuclear power generation
Q12: Which device senses the wind speed in a wind power generation?
- Exciter unit
- Turbine controller
- Chopper controller
- Line controller unit
Q13: Which turbine is used for high heads in hydro electric power plant?
- Kaplan turbine
- Impulse turbine
- Francis turbine
- Reaction turbine
Q14: What is the function of penstocks in hydro power stations?
- Carries water to dam
- Carries water to turbines
- Carries water away from power house
- Discharges surplus water from reservoir
Q15: Which is the purpose of boiler in a steam power station?
- Super heats the steam
- Heats feed water and air
- Converts water in to steam
- Liberates the heat from burnt fuel
Q16: Which type of power plant is more efficient?
- Diesel plant
- Steam power
- Hydro electric
- Nuclear power
Q17: Which material is used as control rod in a nuclear reactor?
- Thorium
- Graphite
- Cadmium
- Tungsten
Q18: Which is the non conventional power generation?
- Diesel power generation
- Nuclear power generation
- Wind mill power generation
- Hydro-electric power generation
Q19: Which is the residue of bio-mass?
- Slurry
- Bio fuel
- Manure
- Bio gas
Q20: Which is the main constituent of biogas?
- Oxygen
- Methane
- Hydrogen
- Carbon dioxide
Q21: How electricity produced in solar panel?
- While sunlight strikes glass
- While sunlight strikes nickel plate
- While sunlight strikes manganese
- While sunlight strikes on photovoltaic cell
Q22: What is the function of air pre heater in a steam power station?
- Heats feed water
- Supplies hot air to economiser
- Supplies hot air to super heater
- Extracts heat from flue gases and heats input air
Q23: What is the main disadvantage of nuclear plant?
- Disposal of waste
- Running cost is more
- Plant requires large space
- Installed away from load centre
Q24: What is the function of economiser in steam power plant?
- Converts water into steam
- Heats the air by the flue gases
- Heats the feed water by the flue gases
- Purifies the feed water by chemical treatment
Q25: What is the advantage of non conventional power generation?
- More reliable
- More efficient
- Low initial cost
- Reduce pollution
Q26: What is the function of charge controller in battery based micro hydel power generation?
- Controls the over voltage
- Disconnects turbine from the battery
- Prevents the over charging of battery
- Controls the over speed of the turbine
Q27: What is the purpose of barrage in tidal power station?
- Controls the tidal waves
- Releases water towards the sea
- Tap the water at the entrance of gulf
- Converts potential energy into kinetic energy
Q28: Which component in a steam power plant is used to heat the feed water from the flue gas?
- Boiler
- Economizer
- Super heater
- Air pre heater
Q29: What is the advantage of pressurized water reactor (PWR)?
- No heat loss
- High thermal efficiency
- It has high power density
- Metal surface temperature is lower
Q30: Which power generation plant is having more reliability in operation?
- Hydro power plant
- Diesel power plant
- Nuclear power plant
- Thermal power plant
Q31: Which is the disadvantage of non conventional power generation over conventional power generation?
- Increase pollution
- Security risk is more
- Requires more maintenance
- Cannot be used for base load demand
Q32: What is the major disadvantage of wind power generation?
- Pollution effect is more
- Requires high technology
- Plant installation more complicated
- Wind power is not constant and steady
Q33: What is the function of turbine used in tidal power generation?
- Prevents water flow to other parts of dam
- Converts potential energy into kinetic energy
- Keeps the water flow from low to higher level
- Converts kinetic energy into potential energy
Q34: What is the advantage of non-conventional energy source?
- More reliable
- Low initial cost
- Efficiency is high
- Green house effect is avoided
Q35: How the potential energy from water flowing is converted as kinetic energy to generate power?
- By storing water in high quantity
- By using surge tanks at the water canal
- By using water turbine to drive alternator
- By creating high head through penstocks
Q36: What is the effect of radio active rays produced during nuclear fission?
- Damages the reactors
- Creates health hazards
- Reduces fission process
- Enormous heat is produced
Q37: What happens to solar cell, if the intensity of light is low?
- Output increases
- Output decreases
- Output remain same
- No output in the cell
Q38: What is the output voltage of a solar cell, if light intensity is high?
- No output in the cell
- Output voltage is increased
- No effect and remain same
- Output voltage is decreased
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