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

FUN 2 EO: 1.4-c

1 / 15

What is the purpose of the pressurizer relief tank?

To act as a backup for the pressurizer

To control the flow of the reactor coolant

To maintain the temperature of the pressurizer

To condense any steam discharged by the safety or relief valves

2 / 15

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

High contamination levels only

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

High Radiation Area only

Potential for > 1 DAC airborne only

3 / 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 remains constant, and pressure remains unaffected

The water density increases, causing a pressure decrease

4 / 15

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

The density remains the same

The density of the reactor coolant increases

The density of the reactor coolant decreases

The density varies unpredictably

5 / 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

6 / 15

In Steam Generators, where is the primary coolant located?

In the steam space

Inside the tubes

Between the moisture separators and dryers

Outside the tubes

7 / 15

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

It helps increase the velocity of the reactor coolant

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

8 / 15

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

To cool down the primary system

To regulate the pressure inside the reactor

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

To generate steam for turbine operation

9 / 15

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

Argon atmosphere

Oxygen atmosphere

Nitrogen atmosphere

Helium atmosphere

10 / 15

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

Forced circulation flow

Natural circulation flow

Passive circulation flow

Reverse circulation flow

11 / 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 inlet of the steam generator

The outlet of the steam generator

12 / 15

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

Reactor and coolant systems

Radioactive and non-radioactive systems

Secondary and tertiary systems

Primary and tertiary systems

13 / 15

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

High Radiation Area only

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

Potential for > 1 DAC airborne only

High contamination levels only

14 / 15

What is the primary purpose of the reactor coolant pump?

To initiate natural circulation flow through the reactor

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

To filter impurities from the reactor coolant

To maintain the water level inside the reactor

15 / 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

Cold water is sprayed into the steam space

The electrical heaters are energized to boil more water into steam

The water is heated by the reactor coolant pump

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