In a nuclear explosion, the energy is released primarily in the form of _____________ energy?

Related Mcqs:

1. Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

   A. Equal to
   B. Less than
   C. More than
   D. Either more or less

2. Energy produced in the nuclear fission is of the order of _____________ MeV?

   A. 20
   B. 200
   C. 1000
   D. 2000

3. The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?

   A. 1100
   B. 2200
   C. 3300
   D. 4400

4. Which of the following accounts for the maximum energy release in the nuclear fission process ?

   A. Kinetic energy of fission products
   B. Radioactive decay of fission products
   C. Instantaneous release of γ-rays
   D. Kinetic energy of neutrons

5. Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?

   A. 32
   B. 52
   C. 72
   D. 88

6. In a homogeneous nuclear reactor, the _____________ are mixed together?

   A. Fuel & coolant
   B. Fuel & moderator
   C. Coolant & moderator
   D. None of these

7. Nuclear reactors are provided with shield to guard against the emission of mainly _____________ rays?

   A. X
   B. α and β
   C. Neutrons & gamma
   D. Infrared

8. _____________ have the same mass number, but different nuclear charge ?

   A. Isotopes
   B. Isobars
   C. Isotones
   D. None of these

9. Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?

   A. < 0.025
   B. > 1
   C. 1-25
   D. > 200

10. Which of the following is not used as a moderator in nuclear reactor ?

    A. Molten sodium
    B. Light water
    C. Beryllium
    D. Boron hydride