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. |
Which of the following statements about low shaft blast furnace is not true? |
| A. | In this, the blast is rich in oxygen |
| B. | The gas produced has a low calorific value |
| C. | The oxygen consumed by this furnace can be made available from natural air |
| D. | It consumes fine ores |
| Answer» C. The oxygen consumed by this furnace can be made available from natural air | |
| 2. |
Remelting of pig iron with limestone and coke to manufacture cast iron is carried out in a ____________ |
| A. | Flask |
| B. | Blast furnace |
| C. | Cupola furnace |
| D. | Ball mill |
| Answer» D. Ball mill | |
| 3. |
Which of the following statements about electric reduction furnace is not true? |
| A. | It is adopted at places where electric power can be cheaply generated |
| B. | Less amount of fluxing material is needed |
| C. | Less amount of slag is created |
| D. | The external supply of air is essential in this type of furnace |
| Answer» E. | |
| 4. |
Grey pig is produced when the blast furnace is not provided with sufficient fuel while the white pig is produced when the blast furnace is provided sufficiently with fuel. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Small amounts of _____________ and __________ improve the quality of Bessemer pig. |
| A. | Copper and sulphur |
| B. | Silicon and phosphorus |
| C. | Silicon and manganese |
| D. | Phosphorus and sulphur |
| Answer» D. Phosphorus and sulphur | |
| 6. |
Which of the following is not a variety of pig iron? |
| A. | Bessemer pig |
| B. | Pink pig |
| C. | Grey pig |
| D. | White pig |
| Answer» C. Grey pig | |
| 7. |
Which of the following is the hottest part of the blast furnace? |
| A. | Throat |
| B. | Stack |
| C. | Bosh |
| D. | Cylinder |
| Answer» D. Cylinder | |
| 8. |
Commonly used fluxing material used in the process of smelting is ___________ |
| A. | Limestone |
| B. | Sandstone |
| C. | Concrete |
| D. | Cement |
| Answer» B. Sandstone | |
| 9. |
Which of the following is the lowest part of the blast furnace? |
| A. | Hearth |
| B. | Stack |
| C. | Throat |
| D. | Bosh |
| Answer» B. Stack | |
| 10. |
Smelting is carried out in a ___________ |
| A. | Funnel |
| B. | Kiln |
| C. | Blast furnace |
| D. | Flask |
| Answer» D. Flask | |
| 11. |
The crude impure iron extracted from the ores of iron is called as __________ |
| A. | Cast iron |
| B. | Wrought iron |
| C. | Steel |
| D. | Pig iron |
| Answer» E. | |
| 12. |
Which of the following is the black oxide of iron? |
| A. | Limonite |
| B. | Magnetite |
| C. | Siderite |
| D. | Pyrite |
| Answer» C. Siderite | |
| 13. |
Pyrite is an oxide of iron. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Which of the following is the red oxide of iron? |
| A. | Haematite |
| B. | Limonite |
| C. | Pyrite |
| D. | Siderite |
| Answer» B. Limonite | |
| 15. |
Latin word for iron is ________ |
| A. | Ferrium |
| B. | Ferrious |
| C. | Ferrumous |
| D. | Ferrum |
| Answer» E. | |