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When the temperature range in geothermal resource is generally low, electrical power generation from such resources require the use of secondary low boiling point fluid. This is generally known as

  • A.Rankine cycle
  • B.Production well cycle
  • C.Flash stem cycle
  • D.Hard Dry Rock cycle

Answer: A

The key gives the Rankine cycle: low temperature geothermal resources run a binary cycle, in which a secondary fluid of low boiling point is vaporised and drives the turbine in a Rankine cycle. A production well is a part of the field, and flash steam and hot dry rock are other types of geothermal systems, so they are not the name of the cycle. This explanation follows the official key.

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