Metallurgical Testing And Inspection — Part 2 MCQs with Explanations

Increases is the correct answer to “Creep rate in ternary stage”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

anisotropy index is the correct answer to “The tensile load-elongation curve of a metal does not describe”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

18 is the correct answer to “What is the minimum age in years at which a person may perform radiography”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Dimensionless is the correct answer to “The unit of strain is:”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Minimum twisting load is the correct answer to “Torsional stress multiplied with original cross sectional area is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Outside power is normally not required is the correct answer to “An advantage of a gamma ray source is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Dye with low contact angle is required is the correct answer to “For dye-penetrant test, identify the correct statement.”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Magnetic particle inspection is the correct answer to “Crack propagation in metallic materials is detected by the NDT method:”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

increasing strain rate is the correct answer to “Fracture toughness, KIC, decreases with”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Q, R is the correct answer to “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.”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Universal testing machine is the correct answer to “Tensile test can be performed on”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-3, Q-2, R-1, S-4 is the correct answer to “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”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

None of these is the correct answer to “Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Source strength in curies is the correct answer to “For a particular isotope, gamma radiation intensity is determined by”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Endurance limit is the correct answer to “A property that can not be obtained from a tensile test is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

31.8 is the correct answer to “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/mm 2 ) will be”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

600 is the correct answer to “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”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

100kgf and Ball indenter of 1/4" diameter is the correct answer to “For HRM scale load and indenter are used”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

residual localised stresses is the correct answer to “By X-ray diffraction, it is not possible to determine”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-4, Q-2, R-3, S-5 is the correct answer to “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”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

2.2 × 10-3/sec is the correct answer to “A tensile specimen with 20 mm gauge length was pulled with a nominal strain rate of 2.2 × 10 -3 / sec. The true strain rate of the specimen at 2 mm extension is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Soft steels with high permeability is the correct answer to “Magnetic particles testing is most likely to find subsurface discontinuities in”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Radiographic sensitivity is the correct answer to “A term which refers to the smallest detail visible in a radiograph is called”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

100 is the correct answer to “A brittle material is mechanically tested in medium P in which it has surface energy γs = 0.9 J m -2 . This material has a fracture strength of 300 MPa for a given flaw size. The same solid containing the same flaws is then tested in medium Q in which γs = 0.1 J m -2 . The fracture strength (in MPa) in medium Q based on Griffith's theory is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Porosity is the correct answer to “The decrease in fatigue life is due to”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Uniform elongation is the correct answer to “For a given ductile materia, which one of the following tensile properties obtained with non-standard specimen is not comparable to that obtained with standard specimen”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-3, Q-1, R-2, S-4 is the correct answer to “Match the following: P. Rockwell hardness 1. Unrecovered projected area of indentation Q. Knoop hardness 2. Surface area of indentation R. Vickers hardness 3. Depth of indentation S. Meyer hardness 4. Projected area of indentation”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

square base diamond pyramid (included angle 136° between opposite faces) is the correct answer to “The indentor used in the vicker's harness test is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Martensitic stainless steel is the correct answer to “Which steel would you choose for Cyclic stress application”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Stiffness is the correct answer to “The ability of a material to resist deformations under the application of load is known as”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Equipment used for ultrasonic testing is portable is the correct answer to “Which of the following statements is/are true for ultrasonic test”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

dark patches as compared to the background is the correct answer to “Radiographic appearance of inclusions resembles”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

1.37 is the correct answer to “The tensile test of a sheet material exhibits 20% elongation in length and 10% decrease in width. The plastic strain ratio is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Rockwell C is the correct answer to “The best method for determining the average hardness of an aluminium casting is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

R, S is the correct answer to “Ultrasonic testing can be used for (choose the correct combination of the following statements P, Q, R, S): P. Quantitative analysis of phases Q. Determination of elastic constants R. Determination of endurance limit S. Detection of internal defects”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

evaluate accurately the defect type, location and size that exist in the material is the correct answer to “In fracture control design procedures, NDT plays an important role because it primarily enables to”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-1, Q-4, R-3, S-5 is the correct answer to “Match the following: Group 1 Group 2 P. Ultrasonic 1. change in accoustic impedence Q. Radiography 2. change in thermal conductivity R. Eddy current 3. change in electrical conductivity S. Magnetic particle 4. change in density 5. change in magnetic flux leakage”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-1, Q-2, R-3, S-4 is the correct answer to “Match the NDT methods with the type of defects detected. NDT methods Type of defects detected P. Ultrasonic 1. Internal Q. X-ray 2. Most R. Eddy current 3. External S. Liquid penetrant 4. Surface breaking”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Absorption is the correct answer to “Radiography technique of detecting defects is based on the principle of”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Water is the correct answer to “What is the most common source of penetrant bath contamination”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.