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

FUN 2 EO: 1.4-c

1 / 15

How does the pressurizer control the system pressure?

Using electrical heaters and reactor coolant flow

Using coolant pumps and safety valves

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

Using temperature sensors and surge tanks

2 / 15

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

Radioactive and non-radioactive systems

Secondary and tertiary systems

Primary and tertiary systems

Reactor and coolant systems

3 / 15

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

Potential for > 1 DAC airborne only

High contamination levels only

High Radiation Area only

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

4 / 15

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

The water density increases, causing a pressure increase

The water density decreases, causing a pressure decrease

The water density increases, causing a pressure decrease

The water density remains constant, and pressure remains unaffected

5 / 15

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

The hot leg side of the reactor vessel

The cold leg side of the reactor vessel

The outlet of the steam generator

The inlet of the steam generator

6 / 15

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

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

High contamination levels only

Potential for > 1 DAC airborne only

High Radiation Area only

7 / 15

What is the primary purpose of the reactor coolant pump?

To initiate natural circulation flow through the reactor

To filter impurities from the reactor coolant

To maintain the water level inside the reactor

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

8 / 15

In Steam Generators, where is the primary coolant located?

In the steam space

Inside the tubes

Outside the tubes

Between the moisture separators and dryers

9 / 15

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

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

It detects the temperature of the coolant

It reduces the pressure in the reactor coolant

It helps increase the velocity of the reactor coolant

10 / 15

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

Passive circulation flow

Reverse circulation flow

Natural circulation flow

Forced circulation flow

11 / 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 of the reactor coolant increases

The density of the reactor coolant decreases

The density remains the same

12 / 15

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

The electrical heaters are energized to boil more water into steam

Cold water is sprayed into the steam space

The water is heated by the reactor coolant pump

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

13 / 15

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

To generate steam for turbine operation

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

To cool down the primary system

To regulate the pressure inside the reactor

14 / 15

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

Oxygen atmosphere

Argon atmosphere

Helium atmosphere

Nitrogen atmosphere

15 / 15

What is the purpose of the pressurizer relief tank?

To condense any steam discharged by the safety or relief valves

To act as a backup for the pressurizer

To maintain the temperature of the pressurizer

To control the flow of the reactor coolant

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