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Materials and Construction-Data Intensity 4 Multiple Questions and Answers.
| 1. | An elastic behaviour of materials is expressed in terms of___? | ||
| A. | Hysteresis loop area | ||
| B. | Stress-strain curve | ||
| C. | Relaxation time | ||
| D. | None of these | ||
| 2. | The formation of oxide film on a metal due to atmospheric exposure reduces its_? | ||
| A. | Toughness | ||
| B. | Stiffness | ||
| C. | Creep limit | ||
| D. | All of above | ||
| 3. | Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100�C ? | ||
| A. | Monel | ||
| B. | Stainless steel | ||
| C. | Graphite | ||
| D. | Kel-F and Teflon | ||
| 4. | Most suitable material of construction for the storage of concentrated nitric acid is__? | ||
| A. | Cast iron | ||
| B. | Monel | ||
| C. | Karbate | ||
| D. | Aluminium or chromium alloys (Cr > 18% for cold acid) | ||
| 5. | A suitable material of construction to use with fuming sulphuric acid is___? | ||
| A. | Carbon steel | ||
| B. | Stainless steel type 304 | ||
| C. | Nickel | ||
| D. | Monel | ||
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