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

FUN 2 EO: 1.4-e

1 / 15

What are the three loops involved in removing heat from the core during a plant shutdown?

Shutdown Cooling Loop, Essential Cooling Water Loop, Ultimate Heat Sink Loop

Primary Safety Loop, Emergency Cooling Water Loop, Main Heat Sink Loop

Primary Coolant Loop, Secondary Coolant Loop, Containment Cooling Loop

Core Coolant Loop, Supplementary Cooling Water Loop, Main Shutdown Loop

2 / 15

What is the ultimate destination for the heat generated from the reactor during plant operation?

Atmosphere

Ground

Underlying water table

Plant's internal system

3 / 15

What is the purpose of the RC waste system?

Monitor the levels of radiation within the reactor

Facilitate the operation of the reactor during power operations

Control the heat generation within the reactor

Provide controlled handling and disposal of radioactive liquid waste from the reactor coolant system

4 / 15

What remains as the primary noble gas released after sufficient decay in the waste gas decay tanks?

Xe-133

Ar-40

Rn-222

Kr-85

5 / 15

What is the purpose of the waste gas surge tank?

Store gaseous waste before it's processed

Provide a collection point for incoming gases and act as the suction head for the waste gas compressors

Allow gaseous waste to be vented safely into the environment

Act as a filtering unit for gaseous waste

6 / 15

What is the ultimate goal of storing radioactive gaseous waste in the waste gas decay tanks?

Immediate release after brief storage

Permanent storage of radioactive gases

Transfer to a secondary containment facility

Allow time for decay prior to release to the atmosphere

7 / 15

When the plant is operating, what percentage of heat is rejected to the atmosphere through the cooling towers?

0.55

0.65

0.75

0.45

8 / 15

Which pump extracts hot water from the core for heat removal after reactor shutdown?

Essential Cooling Water Pump

Residual Heat Removal Pump

Primary Coolant Pump

Ultimate Heat Sink Pump

9 / 15

Where does the reactor coolant waste water get purified?

Reactor coolant waste cleaning unit

Reactor coolant waste filters

Reactor coolant waste ion exchangers

Reactor coolant waste processing plant

10 / 15

The Service Water loop returns heated water to:

Ocean, river, sea, or an onsite cooling pond

The atmosphere directly

The Residual Heat Removal Heat Exchanger

The plant's internal reservoir

11 / 15

The component cooling water loop circulates water through which exchanger?

Essential Cooling Heat Exchanger

Residual Heat Removal Heat Exchanger

Core Coolant Heat Exchanger

Ultimate Heat Sink Heat Exchanger

12 / 15

What radiological precautions are associated with Letdown heat exchanger maintenance?

Minimal dose rate, high contamination, and potential for airborne < 1 DAC

Low dose rate, minimal contamination, and airborne < 1 DAC

High dose rate, high contamination, and potential for airborne > 1 DAC

Moderate dose rate, medium contamination, and no airborne concerns

13 / 15

The RCS water can be directed through which type of waste systems?

Solid, liquid, and gaseous

Liquid, chemical, and solid

Radioactive, solid, and liquid

Chemical, gas, and liquid

14 / 15

What transfers decay heat to the essential cooling water loop?

Shutdown Heat Removal Exchanger

Ultimate Heat Sink Exchanger

Core Coolant Heat Exchanger

Residual Heat Removal Heat Exchanger

15 / 15

Which system provides the method for controlling pressurizer levels, RCS volume, and chemistry control?

Waste Control System

Reactor Coolant System

Chemical and Volume Control System

Component Cooling Water System

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