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Chernobyl Nuclear Ac

Chernobyl Nuclear Accident

QuestionAnswer
Q: When was the accident? Was there a fire? How long did it burn? A: explosions that ruptured one of the reactors of the Chernobyl nuclear power plant and the consequent fire that started on the 26 April 1986 and continued for 10 days resulted in an unprecedented release of radioactive materials into the environment.
Q: The cloud from the burning reactor spread many types of radioactive materials, especially iodine-___ and caesium-___, over much of Europe. A: The cloud from the burning reactor spread many types of radioactive materials, especially iodine-131 and caesium-137, over much of Europe.
Q: Is the iodine-131 and caesium-137, still measurable over much of Europe? A: Because radioactive iodine disintegrates rapidly, it largely disappeared within the first few weeks of the accident. Radioactive caesium however is still measurable in soils and some foodstuffs in many parts of Europe.
Q: U.S. atomic bomb dropped over Hiroshima compares to the Chernobyl accident how? A: ...Chernobyl explosion, which released about 400 times more radiation than the U.S. atomic bomb dropped over Hiroshima.
Q: What rating on the 1-7 scale did Chernobyl get on the International Atomic Energy Agency scale? A: The new data showed emissions exceeding the threshold for a “major accident,” level 7 on a 1-to-7 scale set by the International Atomic Energy Agency. Only one accident has previously rated 7, the 1986 meltdown at the Chernobyl nuclear power plant.
Q: How do the radiation releases of Fukushima and Chernobyl compare? A: Leaks at both plants have exceeded that limit, but the Japanese government says Fukushima’s are still one-tenth of those released by Chernobyl
Q: Were the Chernobyl root causes only technical? A: Human factors contributed to the conditions that led to the disaster.
Q: How did the other plant's problem, and the delay effect the Chernobyl test? PDF-P4 A: The day shift had been briefed. The evening and night shifts were not briefed and had added pressure to complete the test. "The night shift had very limited time to prepare for and carry out the experiment."
Q: The night shift crew at Peach would catch the lack of briefing how? A: briefing and 2 min drill ?Do we need to or have we changed our plan?" Shift Turnover fundamentals.
Q: What is the size of the Chernobyl reactor? What load was the test to be conducted at? A: 3200 MW thermal level or 1000 MW electrical. ? MW.
Q: What Exelon Fundamentals were violated during the test? A: Under Reactor Safety: Operate within limits and by procedures.
QL What is the most irronic thing about the Chernobyl accident? A: They operated it very unsafely to complete the required testing to close a serious safety gap. The gap was the 1 minute gap between a SCRAM and the diesels fully loading to power the cooling pumps.
Q: how many reactors were at the site? A: 4. #4 exploded.
A: How much of the graphite mayb have burned out? A: It is possible that 50% of the graphite burned out.
Q: The nearby city of Pripyat was not immediately evacuated after the incident. The townspeople went about their usual business, completely oblivious to what had just happened. Consequences? A: However, within a few hours of the explosion, dozens of people fell ill. Later, they reported severe headaches and metallic tastes in their mouths, along with uncontrollable fits of coughing and vomiting.[51]
Q: When did the Chernobyl accident occur? How long ago? A: 26 April 1986 About 27 years.
Q: What is the half-life of Caesium-137?Caesium-137 was released during the accident. A: It has a half-life of about 30.17 years,[1] and decays by beta emission to a metastable nuclear isomer of barium-137: barium-137m (137mBa, Ba-137m). (About 95 percent of the nuclear decay leads to this isomer. The other 5.0 percent directly populates t
What is the half-lifes of iodine-131 and caesium-137? A: iodine-131 (8 days) and caesium-137 (30.17 years)
Created by: jimsutton5
 

 



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