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

FUN 2 EO: 1.4-c

1 / 15

In Steam Generators, where is the primary coolant located?

In the steam space

Outside the tubes

Between the moisture separators and dryers

Inside the tubes

2 / 15

Which radiological precaution is associated with reactor coolant pump seal replacement?

High Radiation Area only

High contamination levels only

Potential for > 1 DAC airborne only

High Radiation Area, high contamination levels and potential for > 1 DAC airborne

3 / 15

What is the primary purpose of the reactor coolant pump?

To initiate natural circulation flow through the reactor

To maintain the water level inside the reactor

To provide forced primary coolant flow to remove the heat generated by the fission process

To filter impurities from the reactor coolant

4 / 15

If the reactor coolant system temperature starts to increase, what happens to the density of the reactor coolant?

The density varies unpredictably

The density remains the same

The density of the reactor coolant decreases

The density of the reactor coolant increases

5 / 15

What atmosphere does the pressurizer relief tank contain to prevent potential explosions due to hydrogen?

Nitrogen atmosphere

Helium atmosphere

Argon atmosphere

Oxygen atmosphere

6 / 15

What is the purpose of the pressurizer relief tank?

To maintain the temperature of the pressurizer

To control the flow of the reactor coolant

To condense any steam discharged by the safety or relief valves

To act as a backup for the pressurizer

7 / 15

What happens in the pressurizer when reactor coolant system temperature decreases?

The water density increases, causing a pressure decrease

The water density decreases, causing a pressure decrease

The water density increases, causing a pressure increase

The water density remains constant, and pressure remains unaffected

8 / 15

In the pressurizer, how is pressure increased when it starts to decrease?

The pressurizer relief valves open and dump steam to the pressurizer relief tank

The water is heated by the reactor coolant pump

Cold water is sprayed into the steam space

The electrical heaters are energized to boil more water into steam

9 / 15

Which radiological precaution is associated with PZR insulation removal/install?

High Radiation Area only

High Radiation Area, high contamination levels, and the potential for > 1 DAC airborne

Potential for > 1 DAC airborne only

High contamination levels only

10 / 15

The Steam Generators act as a barrier between which two systems?

Reactor and coolant systems

Radioactive and non-radioactive systems

Primary and tertiary systems

Secondary and tertiary systems

11 / 15

Where does the reactor coolant enter the reactor coolant pump from?

The cold leg side of the reactor vessel

The inlet of the steam generator

The outlet of the steam generator

The hot leg side of the reactor vessel

12 / 15

If the reactor coolant pump fails, which kind of flow is sufficient for heat removal when the plant is shutdown?

Reverse circulation flow

Natural circulation flow

Passive circulation flow

Forced circulation flow

13 / 15

What is the primary purpose of the Steam Generators (S/Gs)?

To transfer the heat from the primary system to the secondary system

To regulate the pressure inside the reactor

To generate steam for turbine operation

To cool down the primary system

14 / 15

What is the purpose of the seal package in the reactor coolant pump?

It reduces the pressure in the reactor coolant

It prevents any water from leaking up the shaft into the containment atmosphere

It detects the temperature of the coolant

It helps increase the velocity of the reactor coolant

15 / 15

How does the pressurizer control the system pressure?

Using temperature sensors and surge tanks

Using electrical heaters, pressurizer spray, power operated relief valves, and safety valves

Using coolant pumps and safety valves

Using electrical heaters and reactor coolant flow

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