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)?

The steam-water mixture leaves the top of the core

The steam line directs steam to the main turbine

The core inside the reactor vessel creates heat

Pressurized water in the primary coolant loop carries the heat.

2 / 8

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

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

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

3 / 8

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

It is pumped back to the reactor vessel

It is exhausted to the condenser

It enters the two stages of moisture separation

It is condensed into water.

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

The main turbine generator

Other pumps powered by onsite diesel generators

The containment cooling system.

5 / 8

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

More than 800 fuel assemblies.

Between 370-800 fuel assemblies

Exactly 200 fuel assemblies

Between 150-200 fuel assemblies

6 / 8

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

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

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

7 / 8

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

Core vessel, moisture separators, steam line

Fuel cladding, main turbine, reactor vessel

Primary coolant loop, secondary loop, condenser.

Fuel cladding, reactor system piping, containment structure

8 / 8

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

Between 150-200 fuel assemblies

Between 370-800 fuel assemblies

Exactly 200 fuel assemblies

More than 800 fuel assemblies.

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