In the nuclear reaction, 93N239→ 94Pu239 + ?; the missing particle is a/an__________________?

Related Mcqs:

1. Mass of a positron is same as that of a/an__________________?

   A. Electron
   B. α-particle
   C. Proton
   D. Neutron

2. 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

3. The emission of an a-particle causes the resultant nucleus to have____________________?

   A. More atomic weight and less atomic number
   B. Less atomic weight and less atomic number
   C. Less atomic weight and more atomic number
   D. None of these

4. The 92U238 emits an a-particle. The product is____________________?

   A. 90U234
   B. 90U238
   C. 90U236
   D. 92U236

5. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of ____________ percent of U-235 (i.e. fissile material)?

   A. 15
   B. 45
   C. 65
   D. 85

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

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

7. Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of___________________?

   A. High carbon steel
   B. Molybdenum
   C. Zircaloy
   D. Boron or cadmium

8. The function of moderators in nuclear reactor is to _________________?

   A. Slow down the secondary neutrons
   B. Absorb the secondary neutrons
   C. Control the chain reaction
   D. None of these

9. Which of the following is not used as a nuclear fuel cladding material ?

   A. Zircaloy
   B. Cadmium
   C. Ceramics
   D. Stainless steel

10. Which of the following nuclear materials is fissile ?

    A. Uranium-238
    B. Thorium-232
    C. Plutonium-239
    D. None of these