STS 322 ACTUAL FINAL EXAM QUESTIONS AND
CORRECT ANSWERS
Where did the Three Mile Accident occur? - CORRECT ANSWERS Middletown
Pennsylvania
What caused the Three Mile Accident? - CORRECT ANSWERS a valve in a cooling water
pipe remained stuck in the open position, releasing the water. This caused heat to build up in
the reactor, releasing radioactive gas and water to the environment.
What did scientists learn from the Three Mile Accident? - CORRECT ANSWERS Cooling
water decomposes into oxygen and hydrogen by radiation and heat released in meltdown...
hydrogen is explosive!
What were the community effects of the Three Mile Accident? - CORRECT ANSWERS US
citizens became very wary of nuclear power, more nuclear safety standards were implemented,
Institute of Nuclear Power Operations established
What caused the Radioactive Waste Spill in Tsuraga Japan? - CORRECT ANSWERS A valve
failed to close (due to improperly working indicator lights) in a radioactive waste pipe, causing
the holding tank to overflow. The waste seeped into the Sea of Japan.
Where did the Ginna power plant radioactive release occur? - CORRECT
ANSWERS Ontario, New York
What caused the Ginna release? - CORRECT ANSWERS A steam pipe ruptured and hot
water from the first cooling system leaked into the secondary cooling system. Operators had to
release contaminated cooling water into an emergency tank which overflowed and spilled all
over the floor.
CORRECT ANSWERS
Where did the Three Mile Accident occur? - CORRECT ANSWERS Middletown
Pennsylvania
What caused the Three Mile Accident? - CORRECT ANSWERS a valve in a cooling water
pipe remained stuck in the open position, releasing the water. This caused heat to build up in
the reactor, releasing radioactive gas and water to the environment.
What did scientists learn from the Three Mile Accident? - CORRECT ANSWERS Cooling
water decomposes into oxygen and hydrogen by radiation and heat released in meltdown...
hydrogen is explosive!
What were the community effects of the Three Mile Accident? - CORRECT ANSWERS US
citizens became very wary of nuclear power, more nuclear safety standards were implemented,
Institute of Nuclear Power Operations established
What caused the Radioactive Waste Spill in Tsuraga Japan? - CORRECT ANSWERS A valve
failed to close (due to improperly working indicator lights) in a radioactive waste pipe, causing
the holding tank to overflow. The waste seeped into the Sea of Japan.
Where did the Ginna power plant radioactive release occur? - CORRECT
ANSWERS Ontario, New York
What caused the Ginna release? - CORRECT ANSWERS A steam pipe ruptured and hot
water from the first cooling system leaked into the secondary cooling system. Operators had to
release contaminated cooling water into an emergency tank which overflowed and spilled all
over the floor.
