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

FUN 2 EO: 1.4-j

1 / 15

The core spray system and low pressure coolant injection mode operate at:

High pressures

Medium pressures

Variable pressures

Low pressures

2 / 15

The dominant mode of the residual heat removal system is:

Low pressure coolant injection mode

Core spray system mode

Automatic depressurization mode

High pressure coolant injection mode

3 / 15

The emergency core cooling systems (ECCS) are designed to:

Provide core cooling under loss of coolant accident conditions

Control the reactor temperature during normal operations

Monitor radiation levels inside the reactor

Ensure a backup power supply to the reactor

4 / 15

The core spray system functions by:

Injecting coolants at the base of the reactor

Spraying water on top of the fuel assemblies

Monitoring radiation levels continuously

Regulating the reactor's internal pressure

5 / 15

During a loss of coolant accident, the low pressure coolant injection mode's goal is to preclude fuel cladding temperatures from exceeding:

1000 F

2200 F

1800 F

3200 F

6 / 15

Automatic depressurization is needed when:

The nuclear process barrier is functioning perfectly

The emergency systems fail to start during testing

The reactor needs a routine pressure release

The high pressure coolant injection system is inoperable and a break has occurred

7 / 15

The emergency core cooling systems consist of how many high pressure systems?

Four

One

Two

Three

8 / 15

The residual heat removal system primarily takes water from:

The suppression pool

Automatic relief systems

External water sources

Internal coolant chambers

9 / 15

Which system requires no auxiliary ac power, plant air systems, or external cooling water systems to function?

Low pressure coolant injection (LPCI) mode

Core spray system

High pressure coolant injection (HPCI) system

Automatic depressurization system (ADS)

10 / 15

The automatic depressurization system (ADS) operates to:

Maintain regular reactor pressures during operations

Provide reactor depressurization for certain loss of coolant accidents

Manually regulate the temperature inside the reactor

Prevent over-cooling of the reactor core

11 / 15

For core cooling protection, flow from the low pressure ECCS is not required until:

Core temperature has reached a certain threshold

High pressure ECCS have started functioning

Reactor pressure has decreased below approximately 100 psig

Reactor pressure has increased above 200 psig

12 / 15

The core spray system consists of:

Two separate and independent pumping loops

One central pumping mechanism

Three backup coolant injection systems

Four relief valves for pressure release

13 / 15

The low pressure emergency core cooling systems consist of:

Core spray system and LPCI mode of the residual heat removal system

ADS and HPCI systems

Two independent HPCI systems

Dual nuclear process barriers

14 / 15

What is the purpose of the high pressure coolant injection system?

Operate while the nuclear system is at high pressure

Provide a backup power source during outages

Maintain radiation levels inside the core

Cool the core during normal operations

15 / 15

The high pressure coolant injection system can supply make up water to the reactor vessel until:

Reactor reaches its maximum pressure level

Reactor pressure has decreased below approximately 100 psig

The reactor is fully depressurized

The low pressure emergency systems are activated

Your score is

PreviousFUN 2 EO: 1.4-jNext

Share your results with your friends!!