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
who added 2nd Azan for friday prayers ?
A. Hazrat abu bakr (r.a)
B. Hazrat umar (r.a)
C. Hazrat usman (r.a)
D. Hazrat ali (r.a)
Monsoon is caused by____________________?
A. Seasonal reversal of winds
B. Revolution of earth
C. Movement of clouds
D. Rise in temperature
Fuel used in a Fast Breeder Reactor is _____________?
A. Uranium oxide
B. Uranium plutonium carbide
C. Uranium plutonium oxide
D. Uranium thorium oxide