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21
Which of the following types of intensifying screens are not used in industrial radiography?
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Answer: Option C
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22
Match the defects with the most suitable NDT method for examining them.
Group 1 Group 2
P. Porosity 1. Accoustic emission
Q. Lack of fusion in welds 2. X-ray radiography
R. Surface cracks in aluminium 3. Ultrasonic test casting
S. Microcrack initiation in austenitic stainless steel tubing 4. Dye-penetrant inspection
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Answer: Option A
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23
The swift cup test evaluates the following property of a sheet metal:
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Answer: Option B
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24
The value true stress (σ) for engineering stress (s) 600MPa and engineering strain 1
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Answer: Option B
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25
Which of the following developers is applied by immersion or flow on only?
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Answer: Option B
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26
According to ASTM E709-95 when fluorescent particles are used, the UV light intensity shall be above
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Answer: Option D
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27
The number of magnetic lines of force cutting through a plane of a given area at a right angle is known as the:
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Answer: Option D
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28
Magnetic particle test indications which are due to cold work can best be removed by
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Answer: Option D
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29
The type of discontinuity potentially most harmful to the useful life of a part is
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Answer: Option D
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30
Highest sensitivity to fine surface cracks would be obtained by which of the following techniques?
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Answer: Option C
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