FUN 2 EO: 1.4-d - Radiation Protection Tech.

FUN 2 EO: 1.4-d

1 / 15

The power being produced by the core after a reactor trip decreases:

By a quarter each day

Two-fold every week

Incrementally by 1% daily

By half for every time interval

2 / 15

One week after the reactor has been shut down, the core's power output becomes:

~ 0.5%

~ 7%

~ 0.25%

~ 1%

3 / 15

How much power does the core produce 1 day after a reactor shutdown?

~ 7%

~ 0.5%

~ 0.25%

~ 1%

4 / 15

What serves as the SECOND Fission Product Barrier?

Reactor Coolant Pump

Steam Generators

The primary piping

Main Turbine

5 / 15

What are the radiological conditions during normal operations characterized by?

Extremely high dose rates due to gamma radiation from fission and Nitrogen-16 neutrons

Stable and low levels of radiation across the entire plant

Only noble gases without any radiation

No detectable particulates or iodines

6 / 15

Which part of the plant delivers borated water to the Steam Generators?

Main Turbine

Two hot legs

Reactor Coolant Pump

Chemical Volume & Control System

7 / 15

What percentage of power does the core produce 1 hour after the reactor is shut down?

0.005

0.01

0.0025

0.07

8 / 15

When the plant is operating, how many loops are working together to take the heat generated in the core from fission and convert it into electrical energy?

9 / 15

The primary coolant heats the feedwater and causes it to:

Increase in radiation

Decrease in temperature

Solidify the core

Boil, generating steam to drive the Main Turbine

10 / 15

What is the significant energy produced in the reactor for years even after a shutdown referred to as?

Primary coolant

Core energy

Decay Heat

Dilution process

11 / 15

Which of the following nuclides is commonly found in the containment airborne levels during normal operations?

Nitrogen-16

Boron

H2O and CO2

Xe-133 and Kr-85

12 / 15

Which system maintains the balance by receiving Letdown at the current Reactor Coolant System boron concentration and Charging back water into the Reactor Coolant System at a slightly lower concentration?

Secondary Loop

Circulating Water Loop

Chemical Volume & Control System

Primary Loop

13 / 15

Immediately upon a Reactor Trip, what percentage of power is the core producing?

~ 7%

~ 1%

~ 0.5%

~ 25%

14 / 15

What is the purpose of the Reactor Coolant System?

Cools down the fuel rods

Generates steam to drive the Main Turbine

Balances reactivity by diluting boron in the water

Provides energy for the core

15 / 15

A month after the reactor's shutdown, the power produced by the core is approximately:

~ 1%

~ 0.5%

~ 0.25%

~ 0.125%

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