FUN 1 EO: 1.4 - Radiation Protection Tech.

FUN 1 EO: 1.4

1 / 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

2 / 8

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

Fuel cladding, main turbine, reactor vessel

Primary coolant loop, secondary loop, condenser.

Fuel cladding, reactor system piping, containment structure

Core vessel, moisture separators, steam line

3 / 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 reactor core directly produces steam

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

4 / 8

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

A series of pumps from the electrical grid

Other pumps powered by onsite diesel generators

The containment cooling system.

The main turbine generator

5 / 8

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

Between 150-200 fuel assemblies

Exactly 200 fuel assemblies

Between 370-800 fuel assemblies

More than 800 fuel assemblies.

6 / 8

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

It is condensed into water.

It is exhausted to the condenser

It is pumped back to the reactor vessel

It enters the two stages of moisture separation

7 / 8

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

More than 800 fuel assemblies.

Exactly 200 fuel assemblies

Between 370-800 fuel assemblies

Between 150-200 fuel assemblies

8 / 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 the primary coolant loop, while PWR uses a steam generator

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

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