Module 3 Quiz – Surface Preparation and Cleaning Methods

Module: Surface Preparation and Cleaning Methods

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

Why is surface cleaning essential before penetrant application?

A) It reduces UV exposure B) It allows faster drying C) It ensures penetrant enters surface flaws D) It improves color visibility

Question 2 of 15

What is the water-break test used for?

A) To test developer absorption B) To measure part temperature C) To verify that the surface is free of oil or grease D) To detect subsurface flaws

Question 3 of 15

Which of the following is NOT a suitable cleaning method for delicate aerospace components?

A) Solvent wipe B) Ultrasonic bath C) Wire brushing D) Alkaline detergent soak

Question 4 of 15

What is the recommended temperature range for penetrant testing according to ASTM E1417?

A) 0°C to 100°C B) 5°C to 35°C C) 10°C to 52°C D) 20°C to 70°C

Question 5 of 15

Which surface condition is most likely to cause false indications during PT?

A) Highly polished surface B) Clean machined part C) Porous casting D) Smooth anodized aluminum

Question 6 of 15

What is the main risk of over-aggressive abrasive cleaning?

A) Penetrant dries too fast B) Surface becomes too shiny C) Surface cracks may be closed or hidden D) Emulsifier won’t adhere

Question 7 of 15

A clean part shows droplets beading during the water-break test. What does this mean?

A) Part is too hot B) Surface is dry and ready C) Surface still contains oil or grease D) Developer was not applied

Question 8 of 15

Which cleaning method is most suitable for complex parts with internal features?

A) Sandblasting B) Wire brushing C) Ultrasonic cleaning D) Dry powder developer

Question 9 of 15

Which contaminant would most likely prevent developer from forming a proper film?

A) Light rust B) Moisture C) Fingerprint D) Paint overspray

Question 10 of 15

When using a solvent for cleaning, what should be avoided?

A) Lint-free cloths B) Using the solvent at room temperature C) Re-using the same solvent-soaked cloth repeatedly D) Shaking the solvent before use

Question 11 of 15

If water is beading on a surface, what action should you take?

A) Apply penetrant immediately B) Add developer to absorb it C) Dry the part with air D) Re-clean the part

Question 12 of 15

Which of the following surface conditions would most likely require an alternative NDT method instead of PT?

A) Machined titanium B) Anodized aluminum with crack suspected C) Porous ceramic casting D) Welded steel bracket

Question 13 of 15

What information is typically recorded in a cleaning log?

A) Inspector’s lunch break B) Developer batch number C) Date/time of cleaning, method used, and verification D) Time developer was applied

Question 14 of 15

Which inspection tool helps confirm that a part has no fluorescent residue remaining before reinspection?

A) Ruler B) UV light C) Magnet D) Infrared thermometer

Question 15 of 15

Which of the following actions helps ensure traceability in PT cleaning?

A) Using red pens only B) Applying developer manually C) Documenting part number, cleaner batch, and inspector ID D) Noting the weather on the day of inspection

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