Creep rate in ternary stage
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Metallurgical Engineering · all questionsMetallurgical Testing and Inspection
Metallurgical Testing and Inspection
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The tensile load-elongation curve of a metal does not describe
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What is the minimum age in years at which a person may perform radiography
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The unit of strain is:
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Torsional stress multiplied with original cross sectional area is
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An advantage of a gamma ray source is
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For dye-penetrant test, identify the correct statement.
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Crack propagation in metallic materials is detected by the NDT method:
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Fracture toughness, KIC, decreases with
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In the context of tensile test of a ductile alloy, the following observations were made. Choose the correct ones from the following observations:
P. Per cent elongation is independent of the dimensions of the test specimens.
Q. The number of necking instabilities are different in cylindrical and sheet specimens.
R. The range of strain rates to be used for 'static tensile test' is 10-1 to 10-5 s-1.
R. The yield stress is independent of the temperature of the test.
P. Per cent elongation is independent of the dimensions of the test specimens.
Q. The number of necking instabilities are different in cylindrical and sheet specimens.
R. The range of strain rates to be used for 'static tensile test' is 10-1 to 10-5 s-1.
R. The yield stress is independent of the temperature of the test.
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Tensile test can be performed on
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Match the hardness test methods in Group 1 with the indentor used in Group 2.
| Group 1 | Group 2 |
| P. Brinnel hardness | 1. Brale indentor |
| Q. Vickers hardness | 2. Square base diamond pyramid |
| R. Rockwell C hardness | 3. 10 mm diameter steel ball |
| S. Rockwell B hardness | 4. 1.6 mm diameter steel ball |
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Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test
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For a particular isotope, gamma radiation intensity is determined by
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A property that can not be obtained from a tensile test is
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The Brinell hardness measurement of a material is made by applying a 500 kg load with a 10 mm ball indentor. If the indentation diameter is 6 mm, the Brinell hardness (kg/mm2) will be
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Brinell hardness measurement made with a 10 mm diameter steel ball at a load of 1000 kg gives an indentation of diameter 4 mm in a material. The BHN of this material is approximately
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For HRM scale load and indenter are used
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By X-ray diffraction, it is not possible to determine
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Match the properties in Group 1 with the testing techniques in Group 2.
| Group 1 | Group 2 |
| P. Electrical conductivity | 1. Jominy test |
| Q. Impact energy | 2. Izod test |
| R. Thermal expansion | 3. Dilatometry |
| S. Specific heat | 4. Four probe technique |
| 5. Differential scanning calorimetry |
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