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EE - Power Plant

Quiz by Florenzo Miguel Aclan (Florencii)

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30 questions
Show answers
  • Q1
    A power station has a connected load of 25 MW and generates 87.6 GWh/year. If the load factor is 50%, find the demand factor.
    0.65
    0.8
    0.7
    0.75
    30s
  • Q2
    In a power station, 4 x 10^4 GWh of energy is to be produced in one year using coal with energy content of 900 watt-years/ton. How many tons of coal will be required?
    5.07 x 10^6
    7.05 x 10^4
    5.07 x 10^4
    7.05 x 10^6
    30s
  • Q3
    In a power station, 4 x 10^4 GWh of energy is to be produced in one year using natural gas with energy content of 0.03 watt-years/ft^3. How many tons of coal will be required?
    15.22 x 10^10
    12.25 x 10^8
    12.25 x 10^10
    15.22 x 10^8
    30s
  • Q4
    A power plant has maximum demand of 120 MW, connected load of 160 MW and annual generation of 613,200 MWh. Find the load factor,
    0.583
    0.565
    0.655
    0.538
    30s
  • Q5
    A generating station has a connected load of 130 MW, maximum demand of 90 MW, annual load factor of 80% and annual capacity factor of 50%. Find the installed capacity of the plant in MW.
    120
    150
    144
    138
    30s
  • Q6
    A generating power station has 2 – 50 MW units operating 7200 hours per year and 1 – 25 MW unit operating 300 hours per year. The output energy of the station is 477 GWh/year. Calculate the plant use factor.
    0.6
    0.75
    0.7
    0.65
    30s
  • Q7
    A diesel power plant has fuel consumption of 0.4 lb per KWh of energy generated and the heating value of diesel is 30,000 BTU/lb. Find the engine efficiency if alternator efficiency is 92%.
    0.325
    0.285
    0.275
    0.309
    30s
  • Q8
    A hydro-electric power station has a reservoir capacity of 10^7 m^3 of water at a head of 160m. What is the total available energy in MWh from the plant if hydraulic and alternator efficiencies are 85% and 95%, respectively?
    3520.7
    2350.7
    5237.5
    3257.6
    30s
  • Q9
    A hydro-electric power station has an effective head of 150m and average discharge rate of 20 m^3/sec. Assuming turbine and alternator efficiencies to be 90% and 95% respectively. Find the available power in MW.
    30
    40
    25
    35
    30s
  • Q10
    A wind generator with an efficiency of 90% has an output power of 61.7 KW. If the average wind velocity is 30 kph, find the blade diameter in meters.
    22
    18
    20
    25
    30s
  • Q11
    What must be the area of the tidal bay in km^2 in order to generate 1200 MW if the maximum tidal head available is 7m?
    122.15
    83.27
    111.83
    96.55
    30s
  • Q12
    The maximum tidal head available is 7m. How much average power in MW/Km^2 of tidal bay area that can be generated in this area?
    10.73
    8.91
    12.72
    15.65
    30s
  • Q13
    What is the average output power of a wind turbine in KW having a blade diameter of 60 ft if the wind velocity ranges from 10 to 30 miles per hour?
    124
    224
    232
    122
    30s
  • Q14
    A hydro – electric power station with a total head of 200m has a reservoir containing 189.4 x 10^6 m^3 of water. How much energy in MWh that can be generated from the reservoir if the over-all plant efficiency is 80%?
    68315
    73069
    79312
    82578
    30s
  • Q15
    A certain amount of fuel containing 249 x 10^10 BTU of energy is converted into electric energy in a power station. If the fuel will last for 1 year and that the over all plant efficiency is 25%, what is the average demand on the station in MWh/day?
    500
    400
    450
    350
    30s

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