MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Copper cannot be removed from steel scraps by the method of conventional refining. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Steel yield is highest in continuous casting method which significantly reduces scraps. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Obsolete scrap is the scrap which is relatively pure and its chemical composition is known. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
As per structural properties of structural steel, the unit mass of steel is____. |
| A. | 250 × 103 g/m3 |
| B. | 7835 × 103 g/m3 |
| C. | 5000 × 103 g/m3 |
| D. | 7850 × 103 g/m3 |
| Answer» E. | |
| 5. |
How much is the Carbon Content (%) in hard-steel? |
| A. | 0.5 – 0.8 |
| B. | 0.8 – 1.5 |
| C. | 0.3 – 0.5 |
| D. | 0.15 – 0.3 |
| Answer» C. 0.3 – 0.5 | |
| 6. |
In the term Fe 500D, ‘D’ stands for |
| A. | durable |
| B. | ductile |
| C. | dense |
| D. | dragon |
| Answer» C. dense | |
| 7. |
High carbon steel is used in _______. |
| A. | Transmission lines and microwave towers |
| B. | Structural buildings |
| C. | Fire resistant buildings |
| D. | For waterproofing |
| Answer» B. Structural buildings | |
| 8. |
How much is the carbon content (%) in high tensile steel? |
| A. | 0.7 – 0.9% |
| B. | 0.3 – 0.5% |
| C. | 0.6 – 0.8% |
| D. | 0.8 – 1.0% |
| Answer» D. 0.8 – 1.0% | |
| 9. |
A steel alloys containing 36% of nickel is known as |
| A. | Invar |
| B. | Mild steel |
| C. | Chrome steel |
| D. | Stainless steel |
| Answer» B. Mild steel | |
| 10. |
COPPER_CANNOT_BE_REMOVED_FROM_STEEL_SCRAPS_BY_THE_METHOD_OF_CONVENTIONAL_REFINING.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
STEEL_YIELD_IS_HIGHEST_IN_CONTINUOUS_CASTING_METHOD_WHICH_SIGNIFICANTLY_REDUCES_SCRAPS.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Obsolete scrap is the scrap which is relatively pure and its chemical composition is known? |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
The dust produced from electric furnaces in steel making procedure is directly thrown out to the atmosphere via chimney. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Preheating of scrap material in steel making process can increase the overall productivity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
In argon oxygen decarburization (AOD) method, whole process is carried out in a converter type of vessel. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Which of the following materials is required in a technique of decarburizing the molten steel? |
| A. | Calcium carbonate |
| B. | Sodium chloride |
| C. | Carbon ferrochrome |
| D. | Sodium ferrochrome |
| Answer» D. Sodium ferrochrome | |
| 17. |
In the manufacturing of stainless steel, oxidation of carbon and chromium cannot be possible. |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
Which of the following types of stainless steels contain maximum amount of chromium in it? |
| A. | Duplex stainless steels |
| B. | Martensitic stainless steels |
| C. | Austenitic stainless steels |
| D. | Precipitation hardenable stainless steels |
| Answer» B. Martensitic stainless steels | |
| 19. |
How is much amount of chromium (in percent) normally added in steel to be called as stainless steel? |
| A. | 1-2 % |
| B. | 2-5 % |
| C. | 5-10% |
| D. | 10-30 % |
| Answer» E. | |