104 Chernobyl Disaster - One Minute History

Soviet engineers conducted a safety test at Chernobyl's Reactor 4, but due to untrained staff and protocol failures, a nuclear explosion occurred, contaminating a vast area. Firefighters and safety personnel worked to extinguish the fire, facing lethal radiation exposure. By December 1986, a sarcophagus was built to contain the reactor, and in 2017, an additional structure was added to aid in cleanup efforts, scheduled for completion in 2065.

What was the main reason for the failure during the safety test at Chernobyl?

• The equipment was faulty.

• The engineers were not trained for the procedure.

• The weather conditions were unfavorable.

• The test was conducted at the wrong time.

What was the immediate consequence of the reactor explosion?

• Radioactive contamination spread over a large area.

• The reactor was immediately shut down.

• The fire was put out within hours.

• The plant was evacuated without any casualties.

How long did the reactor core fire burn after the explosion?

• 9 days

• 7 days

• 5 days

• 3 days

What was constructed in 1986 to contain the spread of radioactive contamination?

• A new reactor

• A protective sarcophagus

• A water barrier

• A concrete wall

When is the cleanup effort of the Chernobyl site expected to be completed?

• 2025

• 2085

• 2045

• 2065