MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
Vapour-jacket cooling stage of quenching process occurs _________ |
| A. | Below boiling point |
| B. | Above boiling point |
| C. | Below melting point |
| D. | At recrystallization temperature |
| Answer» C. Below melting point | |
| 2. |
Which stage of quenching is the slowest? |
| A. | Vapour-Jacket |
| B. | Vapour-Transport cooling |
| C. | Liquid-Cooling |
| D. | They are all equally slow |
| Answer» D. They are all equally slow | |
| 3. |
Which quenching medium is used for quenching of carbon and low alloy steels? |
| A. | Vegetable oil |
| B. | Water |
| C. | Air |
| D. | Animal oil |
| Answer» C. Air | |
| 4. |
Mineral oils are used in the hardening process of ____________ |
| A. | Pipes |
| B. | Carbon |
| C. | Alloy steel |
| D. | Heavy forging |
| Answer» D. Heavy forging | |
| 5. |
Normalising is best used for is what kind of materials? |
| A. | Steel castings |
| B. | Steel wires |
| C. | High carbon steels |
| D. | Low and medium carbon steels |
| Answer» E. | |