GENERAL KNOWLEDGE

GK

NUCLEAR SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a radioactive substance used to generate electricity?
A
Uranium-235
B
Carbon-12
C
Sodium-23
D
Helium-4
Explanation: 

Detailed explanation-1: -Uranium is the most widely used fuel by nuclear power plants for nuclear fission. Nuclear power plants use a certain type of uranium-U-235-as fuel because its atoms are easily split apart.

Detailed explanation-2: -In a nuclear reactor the uranium fuel is assembled in such a way that a controlled fission chain reaction can be achieved. The heat created by splitting the U-235 atoms is then used to make steam which spins a turbine to drive a generator, producing electricity.

Detailed explanation-3: -What is it used for? Uranium “enriched” into U-235 concentrations can be used as fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines. It also can be used in nuclear weapons.

Detailed explanation-4: -For example, uranium has thirty-seven different isotopes, including uranium-235 and uranium-238.: U-238, U-235 and U-234. Uranium is weakly radioactive and contributes to low levels of natural background radiation. The majority of background radiation occurs naturally and a small fraction comes from man-made elements.

Detailed explanation-5: -Uranium is the fuel most widely used in nuclear reactors at power plants. Nuclear energy is created when uranium atoms are split in a process called fission.

There is 1 question to complete.