The equipment used to carry out nuclear reaction in a controlled manner is called

Options

A. Breeder reactor
B. Nuclear reactor
C. Thermonuclear fission
D. Cyclotron

Answer

To answer the question, "The equipment used to carry out nuclear reaction in a controlled manner is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Nuclear Reactions**:
- Nuclear reactions involve the interaction of atomic nuclei, often resulting in the release of energy. A common example is the fission of uranium when it absorbs a neutron.

2. **Chain Reactions**:
- In a nuclear fission reaction, one neutron can cause a uranium nucleus to split, releasing energy and additional neutrons. These additional neutrons can then cause further fission reactions, leading to a chain reaction.

3. **Need for Control**:
- While chain reactions can produce significant energy, they can become uncontrolled, leading to dangerous situations (like in a nuclear explosion). Therefore, it is crucial to manage these reactions to harness energy safely.

4. **Nuclear Reactor**:
- The equipment designed to control nuclear reactions is known as a **nuclear reactor**. It allows for the regulation of the fission process, ensuring that the reaction occurs at a steady rate.

5. **Control Mechanisms**:
- Within a nuclear reactor, control rods made of materials like boron are used to absorb excess neutrons, thereby controlling the rate of the nuclear reaction. This helps maintain a safe and steady output of energy.

### Final Answer:
The equipment used to carry out nuclear reactions in a controlled manner is called a **nuclear reactor**.

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