Metallurgical Testing And Inspection — Part 1 MCQs with Explanations

having compressive residual stresses at the surface is the correct answer to “Fatigue life is expected to increase by”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Providing a contrasting background for visible dye indications is the correct answer to “Which of the following is a function of a developer”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Decreases, increases is the correct answer to “With an increase in temperature, hardness of material . . . . . . . . and ductility . . . . . . . .”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Conical shaped diamond with 120° apex angle is the correct answer to “A brale indentor used in Rockwell hardness test has the following geometry and material.”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

None of these is the correct answer to “The ductile fracture occurs in the forms of”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

0.1 is the correct answer to “It is observed that the tensile flow stress of an aluminium alloy decreases on increasing the strain rate during the test. The possible magnitude for the strain rate sensitivity of the alloy is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Increase the cross sectional area of the rope is the correct answer to “For a constant force, a rope breaks due to stress. Which of the following is useful to reduce the stress”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

60kgf and Ball indenter of 1/16" diameter is the correct answer to “For HRF scale load and indenter are used”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

All of the above is the correct answer to “Which of the following is the most common method of packaging film”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

The ease with which it can be magnetized is the correct answer to “The permeability of a material describes”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Steady stage creep stage is the correct answer to “In which of the stages, do we observe a constant deformation rate”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Yield stress is the correct answer to “Yield load per unit original cross-sectional area is called”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

0.33 is the correct answer to “If true stress-true strain curve is given by σ = 1400ε 0.33 Mpa then value of true strain will be”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Yellow-green is the correct answer to “The colour of fluorescent penetrant under the presence of a UV light is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Retentivity is the correct answer to “The ability of a material to remain magnetic after the magnetizing force is removed is called”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Increases is the correct answer to “For higher temperatures, the creep rate . . . . . . . . with time.”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Inside edge is the correct answer to “The strongest magnetic field in a coil is at the”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-3, Q-1, R-6, S-5 is the correct answer to “Match the items in Group 1 with the measurement methods in Group 2 . Group 1 Group 2 P. Heat of fusion 1. Optical microscope Q. Grain size 2. Dyepenetrant test R. Hardness 3. Calorimetry S. Internal craks 4. Viscosity meter 5. Ultrasonic technique 6. Brinell test”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Inclusions is the correct answer to “What decreases fatigue strength”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Supported vertical is the correct answer to “How specimen placed in anvil for Izod test”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Silver halide is the correct answer to “Which of the following types of intensifying screens are not used in industrial radiography”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

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

Drawability is the correct answer to “The swift cup test evaluates the following property of a sheet metal:”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

1200MPa is the correct answer to “The value true stress (σ) for engineering stress (s) 600MPa and engineering strain 1”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Water based wet is the correct answer to “Which of the following developers is applied by immersion or flow on only”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

1000 μW/cm2 is the correct answer to “According to ASTM E709-95 when fluorescent particles are used, the UV light intensity shall be above”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

None of the above is the correct answer to “The number of magnetic lines of force cutting through a plane of a given area at a right angle is known as the:”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Heat treating is the correct answer to “Magnetic particle test indications which are due to cold work can best be removed by”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Surface cracks is the correct answer to “The type of discontinuity potentially most harmful to the useful life of a part is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Continuous field, wet method is the correct answer to “Highest sensitivity to fine surface cracks would be obtained by which of the following techniques”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Only with a very small source or focal spot size radiation source is the correct answer to “Radiographic enlargement to distinguish small defects is possible”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

magnetic particle technique is the correct answer to “A suitable technique for monitoring a growing crack in an alloy is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

1 and 4 is the correct answer to “Which of the following techniques are not applicable for detecting internal flows in a ceramic material? 1. Liquid penetration test 2. Radiography 3. Ultrasonic testing 4. Eddy current method”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Post emulsifiable is the correct answer to “Which penetrant process is best suited to detect shallow discontinuities”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

60kgf and Brale indenter is the correct answer to “For HRA scale load and indenter are used”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Liquid penetrant inspection is the correct answer to “Which one of the following NDT techniques cannot be used to detect an internal crack in a steel shaft”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

7 is the correct answer to “The ASTM grain size number N for a structural steel which shows 65 grains per square inch at a magnification of 100X is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

P-3, Q-4, R-1, S-2 is the correct answer to “Match those listed in Group 1 with the NDT methods listed in Group 2 . Group 1 Group 2 P. Penetrameter 1. Ultrasonic test Q. Differential coil probe 2. Dye-penetrant test R. Piezo-electric probe 3. X-ray radiography S. Developer 4. Accoustic emission test”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

750 is the correct answer to “A pearlitic steel is observed under an optical microscope which has a numerical aperture (N.A) of 1.5 and uses the radiation of 4500A. The minimum lamellar spacing (in A) which can be resolved using this microscope is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.

Detecting of sub-surface indications is the correct answer to “A common use of ultrasonic testing is”. This question is standard in competitive examination syllabi for Metallurgical Testing And Inspection.