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

By half for every time interval

Two-fold every week

Incrementally by 1% daily

2 / 15

What serves as the SECOND Fission Product Barrier?

Main Turbine

Steam Generators

The primary piping

Reactor Coolant Pump

3 / 15

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

~ 1%

~ 0.25%

~ 0.125%

~ 0.5%

4 / 15

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

0.005

0.0025

0.07

0.01

5 / 15

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

Nitrogen-16

Xe-133 and Kr-85

H2O and CO2

Boron

6 / 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?

7 / 15

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

Chemical Volume & Control System

Reactor Coolant Pump

Main Turbine

Two hot legs

8 / 15

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

Decay Heat

Dilution process

Primary coolant

Core energy

9 / 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?

Chemical Volume & Control System

Primary Loop

Circulating Water Loop

Secondary Loop

10 / 15

The primary coolant heats the feedwater and causes it to:

Decrease in temperature

Increase in radiation

Boil, generating steam to drive the Main Turbine

Solidify the core

11 / 15

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

~ 0.5%

~ 1%

~ 7%

~ 0.25%

12 / 15

What is the purpose of the Reactor Coolant System?

Balances reactivity by diluting boron in the water

Provides energy for the core

Generates steam to drive the Main Turbine

Cools down the fuel rods

13 / 15

What are the radiological conditions during normal operations characterized by?

Only noble gases without any radiation

Stable and low levels of radiation across the entire plant

No detectable particulates or iodines

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

14 / 15

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

~ 1%

~ 7%

~ 25%

~ 0.5%

15 / 15

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

~ 7%

~ 0.25%

~ 0.5%

~ 1%

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