51. Tensile test can be performed on
52. 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
| 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 |
53. Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test
54. For a particular isotope, gamma radiation intensity is determined by
55. A property that can not be obtained from a tensile test is
56. 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
57. 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
58. For HRM scale load and indenter are used
59. By X-ray diffraction, it is not possible to determine
60. 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
| 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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