EPRI Core Protection Nantel Lesson 1, 2, 3, 4, 5 & 6 Exam
New Latest Version with All Questions and Answers
What is the primary safety concern for nuclear power plant operations? -
ANSWER >> Preventing significant radiation exposure to the public during routine
and accident conditions.
How is the primary safety concern for nuclear power plant operations achieved? -
ANSWER >> Employing fission product barriers and engineered safety features.
Identify ways a core can fail - ANSWER >> Any loss of core geometry, particularly
into a configuration where cooling becomes impractical, is considered a core
failure
List three ways that the core has an inability to fully remove the heat created by
the fuel - ANSWER >> 1. A failure of the heat removal systems
2. An increase of heat created beyond the ability of the heat removal systems
3. The inability to transfer heat from the fuel
What are the three fission product barriers? - ANSWER >> 1. fuel pellet and
cladding
2. Reactor Coolant System (RCS) pressure boundary
3. Containment
Prevents the escape of fission products from cladding - ANSWER >> Fuel pellet
and cladding (first fission product barrier)
Contains the radionuclides that escaped the cladding or were produced outside
the cladding - ANSWER >> RCS pressure boundary (second fission product barrier)
Holds radionuclides that have escaped from the RCS - ANSWER >> Containment
(third fission product barrier)
The defense-in-depth policy states that a utility should: - ANSWER >> 1. Design to
prevent the occurrence of nuclear accidents
2. Assume that accidents will occur
, 3. Provide proven capability to meet the range of worst-case accidents
Defined as hypothesized events that affect one or more of the radioactive
material barriers and that are not expected during plant operations - ANSWER >>
Accidents
What are two accident types that are considered? - ANSWER >> 1. Mechanical
failure of a single component leading to the release of radioactive material from
one or more barriers
2. Arbitrary rupture of any single pipe up to and including complete severance of
the largest pipe in the nuclear system process barrier
By definition, what is typically a worst-case accident of interest - ANSWER >>
Design Basis Accident (DBA)
When designing a plant, the philosophy documented in the FSAR contains several
layers. Which of the following assumptions are used to ensure core protection? -
ANSWER >> a. The plant is operating in a given band via proper control
b. The plant is assumed to be in steady state prior to the transient
c. The plant is being operated within Technical Specifications
A design basis accident is typically a worst-case accident of interest.... T/F -
ANSWER >> True
- It is the specification to which a plant is designed
Primary safety concern for nuclear power plant operation is.... - ANSWER >> the
protection of the public from the release of fission products
First line of defense is.... - ANSWER >> keeping the core covered, cooled, and
properly reactive
The systems of the plant are designed with several layers of protection
including.... - ANSWER >> automatic controls, alarms, and automatic protective
systems.
The focus of accident mitigation is.... - ANSWER >> protecting the reactor core
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller insightguru867. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
