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?

H2O and CO2

Nitrogen-16

Xe-133 and Kr-85

Boron

2 / 15

The primary coolant heats the feedwater and causes it to:

Boil, generating steam to drive the Main Turbine

Decrease in temperature

Solidify the core

Increase in radiation

3 / 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

4 / 15

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

~ 0.5%

~ 25%

~ 7%

~ 1%

5 / 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

6 / 15

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

~ 0.5%

~ 0.25%

~ 7%

~ 1%

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?

Primary Loop

Circulating Water Loop

Secondary Loop

Chemical Volume & Control System

8 / 15

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

~ 7%

~ 1%

~ 0.25%

~ 0.5%

9 / 15

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

Main Turbine

Reactor Coolant Pump

Chemical Volume & Control System

Two hot legs

10 / 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?

11 / 15

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

Two-fold every week

By half for every time interval

Incrementally by 1% daily

By a quarter each day

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

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

~ 0.25%

~ 0.125%

~ 1%

~ 0.5%

14 / 15

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

Primary coolant

Dilution process

Decay Heat

Core energy

15 / 15

What serves as the SECOND Fission Product Barrier?

Steam Generators

Reactor Coolant Pump

The primary piping

Main Turbine

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