ASME ASME Nuclear Components NQA-1

Question 1

Which ASME standard establishes quality assurance requirements for nuclear facility applications?

Accepted Answer

ASME NQA-1

Answer

ASME NQA-1 (Nuclear Quality Assurance) establishes quality assurance program requirements for nuclear facilities including design, procurement, fabrication, and testing.

Question 2

Under ASME Section III, nuclear pressure vessels are classified into which design categories?

Accepted Answer

Class 1, 2, and 3

Answer

ASME Section III classifies nuclear components as Class 1 (highest safety significance — reactor coolant boundary), Class 2, and Class 3 based on their safety importance.

Question 3

What does 'N-stamp' certification indicate for a nuclear component manufacturer?

Accepted Answer

The manufacturer is authorized by ASME to fabricate nuclear components per Section III

Answer

The ASME N-stamp indicates the manufacturer holds an ASME Certificate of Authorization to fabricate nuclear components in accordance with ASME Section III requirements.

Question 4

Under ASME Section XI, what is the purpose of 'inservice inspection' (ISI) of nuclear components?

Accepted Answer

To detect and evaluate degradation of pressure-retaining components during operation

Answer

ASME Section XI inservice inspection programs detect and evaluate degradation (cracking, corrosion, erosion) in nuclear pressure-retaining components during plant operation to ensure continued safe use.

Question 5

In ASME NQA-1, what is a 'design verification' activity?

Accepted Answer

An independent review, check, or test of design output to confirm it satisfies design input requirements

Answer

Design verification under NQA-1 is an independent technical review (by an individual not responsible for the original design) confirming that design outputs satisfy the design inputs.

ASME - American Society of Mechanical Engineers Practice Test

ASME - American Society of Mechanical Engineers Practice Test

ASME ASME Nuclear Components NQA-1