Metallurgical Testing and Inspection MCQ Questions and Answers

51

Tensile test can be performed on

A) Impact testing machine B) Universal testing machine C) Rockwell tester D) Brinell tester

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Answer & Solution

Answer: Option B

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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

A) P-1, Q-2, R-3, S-4 B) P-3, Q-2, R-1, S-4 C) P-1, Q-4, R-3, S-2 D) P-1, Q-2, R-4, S-3

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Answer & Solution

Answer: Option B

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53

Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test

A) Steam cleaning, etching, rust and paint removal B) Solvent wipe, vapour degreasing, ultrasonic bath cleaning C) Blasting, grinding, filing, honing, machining D) None of these

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Answer & Solution

Answer: Option D

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54

For a particular isotope, gamma radiation intensity is determined by

A) Type isotope used B) Energy level of gamma rays in source C) Source strength in curies D) None of the above

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Answer & Solution

Answer: Option C

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55

A property that can not be obtained from a tensile test is

A) Young's modulus B) Yield strength C) Ultimate tensile strength D) Endurance limit

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Answer & Solution

Answer: Option D

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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

A) 31.8 B) 45 C) 60 D) 159

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Answer & Solution

Answer: Option A

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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

A) 75 B) 100 C) 300 D) 600

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Answer & Solution

Answer: Option D

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58

For HRM scale load and indenter are used

A) 60kgf and Ball indenter of 1/4" diameter B) 100kgf and Ball indenter of 1/4" diameter C) 150kgf and Ball indenter of 1/4" diameter D) 100kgf and Ball indenter of 1/8" diameter

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Answer & Solution

Answer: Option B

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59

By X-ray diffraction, it is not possible to determine

A) preferred orientation B) residual localised stresses C) particle size D) ordered arrangement of magnetic moments

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Answer & Solution

Answer: Option B

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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

A) P-4, Q-2, R-5, S-1 B) P-5, Q-3, R-2, S-1 C) P-2, Q-1, R-3, S-4 D) P-4, Q-2, R-3, S-5

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Answer & Solution

Answer: Option D

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Metallurgical Testing and Inspection MCQ Questions and Answers | Metallurgical Engineering