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

FUN 2 EO: 1.4-d

1 / 15

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

0.07

0.0025

0.005

0.01

2 / 15

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

~ 1%

~ 0.5%

~ 0.25%

~ 7%

3 / 15

What are the radiological conditions during normal operations characterized by?

No detectable particulates or iodines

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

4 / 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?

5 / 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?

Primary Loop

Chemical Volume & Control System

Circulating Water Loop

Secondary Loop

6 / 15

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

Two-fold every week

Incrementally by 1% daily

By a quarter each day

By half for every time interval

7 / 15

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

Reactor Coolant Pump

Chemical Volume & Control System

Main Turbine

Two hot legs

8 / 15

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

~ 7%

~ 0.5%

~ 1%

~ 25%

9 / 15

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

~ 7%

~ 0.25%

~ 1%

~ 0.5%

10 / 15

The primary coolant heats the feedwater and causes it to:

Increase in radiation

Solidify the core

Boil, generating steam to drive the Main Turbine

Decrease in temperature

11 / 15

What serves as the SECOND Fission Product Barrier?

Reactor Coolant Pump

The primary piping

Main Turbine

Steam Generators

12 / 15

What is the purpose of the Reactor Coolant System?

Cools down the fuel rods

Balances reactivity by diluting boron in the water

Provides energy for the core

Generates steam to drive the Main Turbine

13 / 15

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

~ 0.125%

~ 1%

~ 0.25%

~ 0.5%

14 / 15

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

Nitrogen-16

H2O and CO2

Boron

Xe-133 and Kr-85

15 / 15

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

Core energy

Dilution process

Primary coolant

Decay Heat

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