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

FUN 2 EO: 1.4-d

1 / 15

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

Main Turbine

Reactor Coolant Pump

Two hot legs

Chemical Volume & Control System

2 / 15

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

~ 1%

~ 0.5%

~ 0.125%

~ 0.25%

3 / 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

4 / 15

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

Decay Heat

Dilution process

Core energy

Primary coolant

5 / 15

The primary coolant heats the feedwater and causes it to:

Solidify the core

Boil, generating steam to drive the Main Turbine

Decrease in temperature

Increase in radiation

6 / 15

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

~ 1%

~ 0.5%

~ 7%

~ 0.25%

7 / 15

What is the purpose of the Reactor Coolant System?

Provides energy for the core

Balances reactivity by diluting boron in the water

Generates steam to drive the Main Turbine

Cools down the fuel rods

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

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

~ 1%

~ 7%

~ 0.5%

~ 25%

10 / 15

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

Incrementally by 1% daily

Two-fold every week

By half for every time interval

By a quarter each day

11 / 15

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

~ 7%

~ 0.5%

~ 1%

~ 0.25%

12 / 15

What are the radiological conditions during normal operations characterized by?

Stable and low levels of radiation across the entire plant

Only noble gases without any radiation

No detectable particulates or iodines

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

13 / 15

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

Boron

Xe-133 and Kr-85

H2O and CO2

Nitrogen-16

14 / 15

What serves as the SECOND Fission Product Barrier?

Steam Generators

Reactor Coolant Pump

Main Turbine

The primary piping

15 / 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

Chemical Volume & Control System

Circulating Water Loop

Primary Loop

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