MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials and Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hardness readings are taken every ________ after quenching in Jominy end-quench test. |
| A. | 0.01 mm |
| B. | 0.1 mm |
| C. | 1.6 mm |
| D. | 2.5 mm |
| Answer» D. 2.5 mm | |
| 2. |
Quenching of the sample in Jominy end-quench method is done at _______ |
| A. | 0<sup>o</sup>C |
| B. | 25<sup>o</sup>C |
| C. | 125<sup>o</sup>C |
| D. | 200<sup>o</sup>C |
| Answer» C. 125<sup>o</sup>C | |
| 3. |
Which of the following factors affect the hardenability of a material? |
| A. | Composition of steel |
| B. | Grain size |
| C. | Temperature of specimen |
| D. | Quenching medium |
| Answer» D. Quenching medium | |
| 4. |
Hardenability of a material can be measured using __________ test. |
| A. | Jominy end-quench |
| B. | Charpy |
| C. | Rockwell |
| D. | Izod |
| Answer» B. Charpy | |
| 5. |
___________ is defined as the ease of forming martensite. |
| A. | Hardness |
| B. | Hardenability |
| C. | Toughness |
| D. | Strength |
| Answer» C. Toughness | |
| 6. |
The hardening process is carried out on ________ steel. |
| A. | No carbon |
| B. | Low carbon |
| C. | Medium carbon |
| D. | High carbon |
| Answer» E. | |
| 7. |
The slip does not occur in martensite due to the presence of _______ in the lattice. |
| A. | Silicon |
| B. | Germanium |
| C. | Carbon |
| D. | Tin |
| Answer» D. Tin | |