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

FUN 2 EO: 1.4-d

1 / 15

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

Nitrogen-16

Boron

Xe-133 and Kr-85

H2O and CO2

2 / 15

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

Chemical Volume & Control System

Main Turbine

Two hot legs

Reactor Coolant Pump

3 / 15

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

~ 7%

~ 0.5%

~ 1%

~ 0.25%

4 / 15

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

~ 0.25%

~ 1%

~ 0.5%

~ 0.125%

5 / 15

The primary coolant heats the feedwater and causes it to:

Increase in radiation

Decrease in temperature

Boil, generating steam to drive the Main Turbine

Solidify the core

6 / 15

What are the radiological conditions during normal operations characterized by?

No detectable particulates or iodines

Only noble gases without any radiation

Stable and low levels of radiation across the entire plant

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

7 / 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

Secondary Loop

Primary Loop

Circulating Water Loop

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

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

0.0025

0.07

0.005

0.01

10 / 15

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

Two-fold every week

By a quarter each day

By half for every time interval

Incrementally by 1% daily

11 / 15

What serves as the SECOND Fission Product Barrier?

The primary piping

Reactor Coolant Pump

Steam Generators

Main Turbine

12 / 15

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

~ 0.25%

~ 7%

~ 0.5%

~ 1%

13 / 15

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

~ 1%

~ 25%

~ 7%

~ 0.5%

14 / 15

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

Primary coolant

Decay Heat

Core energy

Dilution process

15 / 15

What is the purpose of the Reactor Coolant System?

Balances reactivity by diluting boron in the water

Cools down the fuel rods

Generates steam to drive the Main Turbine

Provides energy for the core

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