Module 4 Quiz – Defect Types and Discontinuity Recognition

Module: Defect Types and Discontinuity Recognition

15 Questions

30 Minutes

70% to Pass

Quiz Instructions

This quiz contains 15 questions
You have 30 minutes to complete the quiz
You need 70% to pass
Each question has multiple choice answers
You can review your answers before submitting

Question 1 of 15

What is a discontinuity?

A) A chemical contaminant on the surface B) Any deviation from the design dimensions C) An interruption in the physical structure of a material D) A scratch caused by inspection tools

Question 2 of 15

Which of the following is a relevant indication in PT?

A) Penetrant collected in a casting line B) Bright linear indication at weld toe C) Background fluorescence in developer D) Developer over-applied on the surface

Question 3 of 15

What flaw is typically caused by cyclic loading over time?

A) Lap B) Fatigue crack C) Cold shut D) Porosity

Question 4 of 15

What is a common source of a non-relevant indication?

A) A surface-breaking crack B) A porosity cluster C) A thread root C) A thread root

Question 5 of 15

Which of the following best describes porosity indications under PT?

A) Sharp straight lines B) Random rounded dots C) Ghost images D) Blurry streaks

Question 6 of 15

Which condition may cause false indications?

A) Excessive lighting B) Inadequate surface cleaning C) Proper developer application D) A clean machined surface

Question 7 of 15

Which of the following is the Level 1 inspector allowed to do?

A) Approve a part with borderline defects B) Perform flaw evaluation C) Interpret indications and refer to Level 2 C) Interpret indications and refer to Level 2

Question 8 of 15

Which document typically defines the acceptance criteria for flaws?

A) Equipment manual B) Personal notes C) Inspection standard or client specification D) Test block calibration sheet

Question 9 of 15

What tool would be used to measure a linear indication found in PT?

A) UV meter B) Developer spray C) Measuring tape or scale D) Dwell timer

Question 10 of 15

Which of the following would be considered rejectable based on typical CGSB limits?

A) Linear indication of 4 mm B) Single pore of 2 mm C) Cluster of rounded indications over 3 mm D) Machining mark under 1 mm

Question 11 of 15

Which of the following features may resemble a crack but is often acceptable?

A) Toe crack B) Seam C) Parting line D) Fatigue indication

Question 12 of 15

Which step helps reduce false or misleading indications during PT?

A) Use more penetrant than required B) Omit pre-cleaning on smooth parts C) Ensure proper surface preparation and rinsing D) Skip developer application for smoother results

Question 13 of 15

Why should a PT report include the inspector’s ID and date?

A) For quality assurance only B) To ensure compliance with company policy C) To allow tracing of inspection activities D) It’s only required if a flaw is found

Question 14 of 15

What should a Level 1 inspector do after identifying an indication?

A) Write a repair recommendation B) Approve the part for shipment C) Refer the indication to a Level 2 for evaluation D) Decide to retest without recording it

Question 15 of 15

Which of the following is a required element of a proper PT inspection report?

A) Inspector’s favorite method B) Weather during inspection C) Dwell time and developer type used D) Cost of penetrant system

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