Which element is used as moderator in nuclear reactor?

Related Mcqs:

1. A moderator is used in nuclear reactor in order to ?

   A. Accelerate the neutrons B. Slow down the speed of the neutrons C. Increase the number of elections D. Decrease the number of electrons E. None of these...

2. A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect?

   A. Current B. Voltage C. Nuclear Radiation D. power E. None of these...

3. In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?

   A. Chemical Reaction B. Nuclear reaction C. Fission nuclear reaction D. Fusion nuclear reaction E. None of these...

4. Fuel used in a Fast Breeder Reactor is _____________?

   A. Uranium Oxide B. Uranium Plutonium carbide C. Uranium Plutonium Oxide D. Uranium thorium Oxide E. None of these...

5. The most abundant element in the Earth’s crust is __________?

   A. Oxygen B. Hydrogen C. Carbon Dioxide D. Silicon...

6. Which metallic element is liquid at room temperature?

   A. Zinc B. Nickel C. Lead D. Mercury Submitted by: Danish Balani...

7. What is the first element in the periodic table?

   A. Hydrogen B. Helium C. Nitrogen D. Carbon Submitted by: Ashfaque Ali Khoso...

8. Which of the following is a positively charged particle emitted by a radioactive element?

   A. Beta Rays B. Alpha Rays C. Gamma Rays D. None of these Submitted by: AKBAR ALI...

9. Which of the following is a transition element?

   A. Cl B. Cu C. S D. None of these Submitted by: Majid Ali...

10. The heaviest man made element found so for is__________?

    A. Promethium B. Ununoctium C. Francium D. Technetium Submitted by: Malik Asghar Hussain...