UPSC IAS 2018 PRELIMS PRACTICE QUESTIONS : DAY 39/60 SAMVEG

Q.1 Consider the following statements about The Indian Nuclear Power Programme.

1. In the first stage of the programme, natural uranium fueled pressurized heavy water reactors (PHWR) produce electricity while generating plutonium-239 as by-product.
2. The Stage II Fast Breeder Reactors are designed to “breed” more fuel than they consume.
3. The Stage III reactor or an Advanced nuclear power system involves a self-sustaining series of thorium-232-uranium-233 fueled reactors.

Which of the above statements is/are correct?

1. 1 and 2 only
2. 2 and 3 only
3. 3 only
4. All the above

Q2 Consider the following statements about applications of Nuclear science in agriculture.

1. Nitrogen-15 is used to assess soil quality.
2. Carbon-13 is used to know about how efficiently the crops use the nutrients.

Which of the above statements is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. None

Q.3 Consider the following statements.

1. Moderators slow down neutrons.
2. Moderators are composed of chemical elements such as boron, silver, indium and cadmium.
3. Control Rods absorb neutrons.

Which of the above statements is/are correct?

1. 1 and 2 only
2. 1 and 3 only
3. 3 only
4. All the above

Q.4 Which of the following are the types of energy that can be harnessed from sea/ocean?

1. Tidal energy
2. Marine current power
3. Ocean thermal energy
4. Osmotic power

Which of the above statements is/are correct?

1. 1, 2 and 3 only
2. 1 and 2 only
3. 1 and 3 only
4. All the above

Q.5 Which of the following best describes ‘Uranium enrichment’?

1. Increasing the concentration of U-235 isotope in the fuel.
2. Increasing the concentration of U-238 isotope in the fuel
3. Increasing the concentration of thorium in the fuel.
4. All the above