Nuclear Power Station

Q. Give two differences between the radioactive decay and nuclear fission.

Q.

Which is the nuclear power plant located near kerala?

1. Kudankulam nuclear plant

2. Kaiga nuclear power plant

3. Kalpakkam nucelar power plant

4. Narora nuclear power plant

Q.

Distinguish between controlled and uncontrolled chain reactions.

Q.

Which of the following is the correct energy change taking place in a Nuclear power plant?

1. Nuclear energy -> Heat energy -> Mechanical energy -> Electrical energy

2. Heat energy -> Nuclear energy -> Mechanical energy -> Electrical energy

3. Potential energy -> Kinetic energy -> Mechanical energy -> Electrical energy

4. Kinetic energy -> Potential energy -> Mechanical energy -> Electrical energy

Q.

The operating cost of nuclear power plant is less than thermal power plant.

1. True

2. False

Q. What do you mean by the chain reaction in nuclear fission? How is it controlled?

Q.

Which element is used in atomic reactors to control the speed of neutrons?

1. $\mathrm{B}$ & $\mathrm{Cd}$

2. $\mathrm{B}$ & $\mathrm{Fe}$

3. $\mathrm{Cd}$ & $\mathrm{Al}$

4. $\mathrm{Na}$ & $\mathrm{K}$

Q. Complete the following nuclear changes:
a) ${}_x^a\text{P}\to Q{+}_{-1}^0\beta$
b) ${}_{92}^{238}\text{U}{\to }_{90}^{234}\text{Th}+\dots +energy$
c) ${}_{92}^{238}\text{P}{\to }^{\alpha }Q{\to }^{\beta }R{\to }^{\beta }S$

Q. A radioactive source emits three types of radiation.
a) Name the radiation of zero mass.
b) Name the radiation which has the lowest ionising power.
c) Name the radiation which has the lowest penetrating power.
d) Give the charge and mass of particles composing the radiation in part (c).

Q.

Name the energy transformation takes in the following instruments.
II. Atomic bomb

Q. Give two examples of nuclear fusion.

Q. What is nuclear fission? Name the particle used for it. Write one fission reaction.

Q. Write the approximate value of the energy released in the fission of one nucleus of ${}_{92}^{235}\text{U}$. What is the reason for it?

Q. Name the following nuclear reaction:
(a) ${}_{92}^{235}U+{}_0^{1}n\to {}_{38}^{90}Sr+{}_{54}^{143}Xe+3_0^{1}n+Y$
(b) ${}_1^{3}H+{}_1^{2}H\to \underset{2}{4}He+{}_0^{1}n+Y$

Q.

Different stages of power production and transmission are given. Arrange them in the proper sequence.

a) Distribution transformer reduces the voltage from 11 kV to 220 V.
b) Voltage is reduced from 220 kV to 66 kV supply electricity to large-scale industries.
c) Turbine is rotated to operate the generator.
d) Transmission of electricity at the power stations starts at 220 kV.
e) Electricity is produced at 11 kV.
f) Domestic consumers get electricity.

1. c, e, d, f, a, b

2. c, e, d, b, a, f

3. e, c, d, a, b, f

4. e, c, d, f, a, b

Q. Name the following nuclear reaction:
(a) ${}_{92}^{235}U+{}_0^{1}n\to {}_{38}^{90}Sr+{}_{54}^{143}Xe+3_0^{1}n+Y$
(b) ${}_1^{3}H+{}_1^{2}H\to \underset{2}{4}He+{}_0^{1}n+Y$

Q.

Describe the nuclear fission of ${}_{92}{}^{235}U$.

Q.

Which one of the following is fissionable?

${}_{92}{}^{235}Uor{}_{92}{}^{238}U$.

Q.

Isotope of _____ is used as a fuel in nuclear reactors.

1. iodine

2. sodium

3. helium

4. uranium

Q.

In the nuclear reaction -

${}_7{}^{14}\mathrm{N}+{}_2{}^4\mathrm{He}\to {}_8{}^{17}\mathrm{O}+........$

1. ${}_2{}^4\mathrm{He}$

2. ${}_1{}^1\mathrm{H}$

3. ${}_0{}^1\mathrm{n}$

4. $\mathrm{\gamma }$

Q. What is used as a fuel in a nuclear reactor?

1. Radium
2. Uranium
3. Cadmium
4. Mercury

Q.

Which of the following statements is correct?

1. Fusion of $1\mathrm{g}$ of hydrogen gives more energy than fission of $1\mathrm{g}$of Uranium-$235$

2. Fusion of $1\mathrm{g}$ of hydrogen gives less energy than fission of $1\mathrm{g}$ of Uranium-$235$

3. Fusion of $1\mathrm{g}$ of hydrogen gives same energy as in fission of $1\mathrm{g}$of Uranium-$235$

4. Fusion of $1\mathrm{g}$ of Uranium gives less energy than the combustion of $1\mathrm{ton}$ of coal

Q.

The reaction ${}_1{}^2\mathrm{H}+{}_1{}^2\mathrm{H}\to {}_2{}^3\mathrm{He}+{}_0{}^1\mathrm{n}$ is called -

1. fusion

2. fission

3. endothermic reaction

4. spontaneous reaction

Q.

How many nuclear power stations does India have at present?

1. $2$

2. $3$

3. $4$

4. none of these