Hydroelectric Power Plant MCQ

Hydroelectric power plant uses the potential energy of water for electric power generation. Water is stored at a certain height from where it is brought down hitting the turbines at the bottom. The turbines are synchronized with a generator and produce electricity at the output.

Hydro Power Plant MCQ

Surge tank:

  1. Is the main reservoir
  2. Absorbs pressure swing
  3. Reduce surge frequency of electricity
  4. Is used with Kaplan turbines

Correct answer: 2. Absorbs pressure swing


Role of penstock:

  1. Carries water to the turbine
  2. Absorbs pressure swing
  3. Is used with Kaplan turbines
  4. Reduces load

Correct answer: 1. Carries water to the turbine


Reaction turbines are used for:

  1. Low heads
  2. Medium heads
  3. Both of these
  4. None of these

Correct answer: 3. Both of these


A hydro-electric power plant with 150-meter head and 8*10^9 kg of water will generate how much energy if overall efficiency is 82%.

  1. 3.82 * 10^13 kWh
  2. 4.98 * 10^13 kWh
  3. 9.65 * 10^13 kWh
  4. 9.98 * 10^13 kWh

Correct answer: 3. 9.65 * 10^13 kWh


Impulse turbines are used for:

  1. Low heads
  2. Medium heads
  3. Both of these
  4. None of these

Correct answer: 4. None of these

More Hydroelectric Power Plant MCQ

  1. The Power Plant with minimum running cost
  2. Continent having highest installed capacity of hydropower
  3. Draft tube is provided in hydropower plant to
  4. In hydropower station, the graphical representation of discharge as function of time is known as
  5. The hydroelectric power plant having flow rate 1000 cubic meter/s and 800 m high head having plant efficiency of 96% will generate how many kilowatts
  6. The generating capacity of a hydroelectric plant is represented using equation
  7. Usually the hydroelectric power plants utilize which type of synchronous generators

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