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

FUN 2 EO: 1.4-d

1 / 15

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

~ 1%

~ 0.25%

~ 0.5%

~ 7%

2 / 15

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

Core energy

Primary coolant

Decay Heat

Dilution process

3 / 15

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

~ 0.25%

~ 1%

~ 0.5%

~ 7%

4 / 15

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

Main Turbine

Chemical Volume & Control System

Two hot legs

Reactor Coolant Pump

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

Boron

H2O and CO2

6 / 15

The primary coolant heats the feedwater and causes it to:

Decrease in temperature

Solidify the core

Increase in radiation

Boil, generating steam to drive the Main Turbine

7 / 15

What is the purpose of the Reactor Coolant System?

Generates steam to drive the Main Turbine

Balances reactivity by diluting boron in the water

Cools down the fuel rods

Provides energy for the core

8 / 15

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

~ 0.5%

~ 0.125%

~ 1%

~ 0.25%

9 / 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

Only noble gases without any radiation

Stable and low levels of radiation across the entire plant

No detectable particulates or iodines

10 / 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

Circulating Water Loop

Primary Loop

11 / 15

What serves as the SECOND Fission Product Barrier?

Main Turbine

The primary piping

Steam Generators

Reactor Coolant Pump

12 / 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

13 / 15

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

0.005

0.0025

0.01

0.07

14 / 15

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

~ 7%

~ 25%

~ 0.5%

~ 1%

15 / 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?

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