Power Systems
The area under a flow duration curve represents

  total quantity of run-off during that period.
 maximum rate of run-off during the period.
 total of units of energy available.
 total power available.

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Power Systems
A CANDU reactor uses

  natural uranium as fuel and heavy water as moderator and coolant.
 only fertile materials.
 highly enriched uranium as fuel and water as moderator and coolant.
 enriched uranium as fuel and ordinary water as moderator and cooler.

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