Non Destructive Testing and Evaluation MCQs | Page - 4

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Mr. Dubey • 52.26K Points
Coach

Q. The causes of non relevant indications are:

(A) Insufficient removal of excess surface penetrant
(B) Penetrant on operators hands
(C) Threads, keyways, splines, sharp corners, press fits, blind holes, rough surfaces
(D) Contaminated work surfaces
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M

Mr. Dubey • 52.26K Points
Coach

Q. Which of the following metals must be tested with low halogen sulphur free penetrant materials:

(A) Copper, silver, gold
(B) Nickel based alloys, certain stainless steel materials
(C) Steel, iron, aluminium
(D) Plastic, wood, paper
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M

Mr. Dubey • 52.26K Points
Coach

Q. Penetrant testing is limited by its inability to test which of the following materials:

(A) Aluminium
(B) Ceramics
(C) Porous materials
(D) Moulded rubber
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M

Mr. Dubey • 52.26K Points
Coach

Q. Liquid penetrants can be further categorised by the removal method of excess surface penetrant:

(A) Water washable
(B) Solvent removable
(C) Post emulsified
(D) All of the above
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M

Mr. Dubey • 52.26K Points
Coach

Q. The typical temperature ranges for conducting a liquid penetrant test is:

(A) 60 to 100ºC
(B) 10 to 60ºF
(C) 16 to 52ºC
(D) 10 to 20ºK
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M

Mr. Dubey • 52.26K Points
Coach

Q. Surface breaking porosity will show what type of relevant indications when a welded aluminium plate is tested with the liquid penetrant method:

(A) Linear indications
(B) Square indications
(C) Triangular indications
(D) Rounded indications
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M

Mr. Dubey • 52.26K Points
Coach

Q. Cracks, lack of penetration, lack of fusion which are surface breaking on a welded aluminium plate which has been liquid penetrant tested will show as:

(A) Linear indications
(B) Rounded indications
(C) Square indications
(D) Triangular indications
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M

Mr. Dubey • 52.26K Points
Coach

Q. Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test:

(A) Steam cleaning, etching, rust and paint removal
(B) Solvent wipe, vapour degreasing, ultrasonic bath cleaning
(C) Blasting, grinding, filing, honing, machining
(D) All of the listed methods are not recommended
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M

Mr. Dubey • 52.26K Points
Coach

Q. The purpose of using a developer is:

(A) To create a contrasting background for the penetrants to ensure better visibility of indications
(B) Assists in reverse capillary action due to absorption ability of developers
(C) Prevent the part from corroding after the liquid penetrant test
(D) To ensure that the part has been correctly heat treated
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M

Mr. Dubey • 52.26K Points
Coach

Q. The typical sequence of conducting a visible solvent removable penetrant is:

(A) Pre-clean with a solvent wipe method
(B) Apply visible penetrant, keep wet, dwell time of 2 minutes
(C) Pour solvent on surface of part and wipe with waste cloth
(D) Spray on a thick layer of developer
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