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For a Negative Mod. Temp. Coeff. which change in BOP parameter causes negative reactivity addition in the reactor?
Steam Flow Decrease
Which is NOT a safety feature in a nuclear power plant?
Positive mod. Temp. coeff.
How can we maintain criticality if control rods are inserted?
Add additional positive reactivity
With a neg. mod. Temp. coeff. which change in BWR plant parameter causes negative reactivity addition?
RCS pressure decrease
Half-life A 4 hours, half life B 12 hours. What’s true about decay rate?
A decays faster
What happens to a neutron in a scattering neutron?
Neutron slows down and loses energy
Fuel temp causes reactor to do what?
Nuclides to the left of line of stability generally have excess of what?
Which type of accident is a reactivity control accident?
Control Rod ejection
Fuel temp. coeff. causes power to stop at 5% (during startup). What is the mult. factor k?
Radioactive decay (radioactivity)
You have α, β particles, & gamma rays
A-Mass Number (Z+N); Z-Atomic Number (#of Protons); N-#of Neutron's
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