In a nuclear power plant fueled with uranium-235, what is the purpose of the moderator?
a. slow neutrons
b. maintaining power outputs
c. shut down the reactor if there is a loss in cooling water
d. prevent a runaway chain reaction
Ans: a. slow neutrons
You might also like to view...
When a contracting hot ball of gas spins into a disk shape, it cools faster due to
A. increased convection currents. B. decreased insulation. C. increased radiation transfer. D. increased surface area. E. eddy currents.
If the tangential velocity of the Moon about Earth slowed to zero, the Moon would
A. crash into Earth. B. spiral away from Earth C. continue in a straight-line path. D. slow.
The Koeppen "B" climate zone is the only one that is determined strictly by
A) temperature. B) precipitation. C) winds. D) cloudiness.
Let's make an analogy between the candies left in the bag and a fractionally crystallizing magma. If a crystallizing magma progressively became more enriched in Si (silicon) and depleted in Mg (magnesium),
which color in the candy bag would represent Si in the magma? a) Red represents Si b) Yellow represents Si