Q 01/05

Which low-carbon source generated more of the world's electricity than nuclear power in 2023?

A) Wind power

B) Hydropower

C) Solar power

D) Bioenergy

Answer · why

B) Hydropower

Hydropower: it beat nuclear even though droughts in India and Mexico cut its output that year.

Q 02/05

As of 2024, which country generated the highest share of its electricity from nuclear power?

A) Canada

B) Japan

C) Belgium

D) France

Answer · why

D) France

France: in 1974 its government decided to expand nuclear power rapidly.

Q 03/05

Which reactor maker filed for bankruptcy in 2017 after cost overruns on new reactors in Georgia and South Carolina?

A) General Electric

B) Westinghouse

C) Babcock & Wilcox

D) Framatome

Answer · why

B) Westinghouse

Westinghouse: soon afterwards, the South Carolina project was abandoned with its two new reactors unfinished.

Q 04/05

Which country's dismantled nuclear warheads supplied fuel for up to 10% of US electricity for two decades?

A) Britain

B) Pakistan

C) Russia

D) India

Answer · why

C) Russia

Russia: the flood of cheap fuel held down uranium prices and discouraged new Western investment for years.

Q 05/05

Which radioisotope-powered NASA probe is the only spacecraft to have visited Uranus and Neptune?

A) Voyager 1

B) Pioneer 11

C) Voyager 2

D) New Horizons

Answer · why

C) Voyager 2

Voyager 2: as its nuclear generators weaken, NASA has been switching off instruments to keep it running.