FUN 1 EO: 1.4 - Radiation Protection Tech.

FUN 1 EO: 1.4

1 / 8

What are the fission product barriers in a typical nuclear reactor design, such as BWR and PWR?

Fuel cladding, reactor system piping, containment structure

Fuel cladding, main turbine, reactor vessel

Primary coolant loop, secondary loop, condenser.

Core vessel, moisture separators, steam line

2 / 8

What is the first step in the typical design concept of both Boiling Water Reactors (BWR) and Pressurized Water Reactors (PWR)?

Pressurized water in the primary coolant loop carries the heat.

The steam-water mixture leaves the top of the core

The core inside the reactor vessel creates heat

The steam line directs steam to the main turbine

3 / 8

How many fuel assemblies does a typical commercial Boiling Water Reactor (BWR) contain?

More than 800 fuel assemblies.

Between 370-800 fuel assemblies

Exactly 200 fuel assemblies

Between 150-200 fuel assemblies

4 / 8

How is the steam generated in a commercial Pressurized Water Reactor (PWR)?

The steam-water mixture leaves the top of the core

The core inside the reactor vessel heats the steam line directly.

Heat from the primary coolant loop vaporizes the water in a secondary loop

Heat from the reactor core directly produces steam

5 / 8

What is the main difference between the steam production in BWR and PWR?

BWR produces steam-water mixture in the core, while PWR uses a primary and secondary loop

BWR uses the condenser to produce steam, while PWR uses moisture separators.

BWR uses a steam line to generate electricity, while PWR uses the reactor vessel

BWR uses the primary coolant loop, while PWR uses a steam generator

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What is the source of emergency cooling water in both BWR and PWR if offsite power is lost?

Other pumps powered by onsite diesel generators

The containment cooling system.

The main turbine generator

A series of pumps from the electrical grid

7 / 8

In a typical BWR, what happens to the steam-water mixture after absorbing heat from the core?

It is condensed into water.

It enters the two stages of moisture separation

It is exhausted to the condenser

It is pumped back to the reactor vessel

8 / 8

How many fuel assemblies does a typical commercial Pressurized Water Reactor (PWR) contain?

Exactly 200 fuel assemblies

Between 150-200 fuel assemblies

More than 800 fuel assemblies.

Between 370-800 fuel assemblies

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