MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Building Construction knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Dust of pure _________ is used to cover the article to be treated for corrosion in the method of sherardising. |
| A. | Platinum |
| B. | Zinc |
| C. | Copper |
| D. | Barium |
| Answer» C. Copper | |
| 2. |
Which chemical is used in the method of parkerizing, adopted to prevent corrosion? |
| A. | Alum |
| B. | Borax |
| C. | Pareo |
| D. | Vitriol |
| Answer» D. Vitriol | |
| 3. |
Which metal is used in the galvanisation of iron in order to prevent it from rusting? |
| A. | Zinc |
| B. | Sodium |
| C. | Copper |
| D. | Silver |
| Answer» B. Sodium | |
| 4. |
Corrosion of ferrous metals is known as ___________ |
| A. | Enamelling |
| B. | Rusting |
| C. | Galvanising |
| D. | Coal Tarring |
| Answer» C. Galvanising | |
| 5. |
Which of the following is not a property pf wrought iron? |
| A. | Wrought iron is ductile and malleable |
| B. | It fuses easily |
| C. | The specific gravity of wrought iron is about 7.8 |
| D. | Wrought iron can be easily forged and welded |
| Answer» C. The specific gravity of wrought iron is about 7.8 | |
| 6. |
Aston s process is used to manufacture _________ |
| A. | Steel |
| B. | Wrought iron |
| C. | Pig iron |
| D. | Cast iron |
| Answer» C. Pig iron | |
| 7. |
The material obtained at the end of the shingling process is called as ________ |
| A. | Flux |
| B. | Slag |
| C. | Bloom |
| D. | Fuse |
| Answer» D. Fuse | |
| 8. |
The process of puddling is carried out in a ________ |
| A. | Blast furnace |
| B. | Flask |
| C. | Cupola furnace |
| D. | Reverberatory furnace |
| Answer» E. | |
| 9. |
The process of converting pig iron into wrought iron by stirring in the molten state is called as _________ |
| A. | Puddling |
| B. | Refining |
| C. | Rolling |
| D. | Shingling |
| Answer» B. Refining | |
| 10. |
In which type of casting, the outer surface is made hard while the inner surface remains relatively soft? |
| A. | Hollow casting |
| B. | Sand casting |
| C. | Chilled casting |
| D. | Die casting |
| Answer» D. Die casting | |
| 11. |
Which variety of cast iron is obtained by melting cast iron with wrought iron scrap? |
| A. | Mottled cast iron |
| B. | Chilled cast iron |
| C. | Malleable cast iron |
| D. | Toughened cast iron |
| Answer» E. | |
| 12. |
The manganese content in cast iron should be kept below __________ |
| A. | 0.75% |
| B. | 1% |
| C. | 1.5% |
| D. | 1.75% |
| Answer» B. 1% | |
| 13. |
Which of the following is not a property of cast iron? |
| A. | Cast iron is hard but brittle |
| B. | Cast iron can be magnetised |
| C. | It does not rust readily |
| D. | Cast iron is not ductile |
| Answer» C. It does not rust readily | |
| 14. |
In which type of casting, molten metal is poured into moulds which keep on rotating? |
| A. | Centrifugal casting |
| B. | Chilled casting |
| C. | Hollow casting |
| D. | Sand casting |
| Answer» B. Chilled casting | |
| 15. |
Which of the following statements is not true about white cast iron? |
| A. | It has a silvery-white colour |
| B. | White cast iron is quite hard |
| C. | It melts with great difficulty |
| D. | It can be used for delicate castings |
| Answer» E. | |