 
			 
			MCQOPTIONS
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				This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. | The melting rate is directly proportional to the diameter of the cupola. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 2. | Given: cupola diameter = 53cm, mass of bed charge = 465kg, height of groove = 7.2m. Find coke density. | 
| A. | 372.72 kg/m3 | 
| B. | 292.73 kg/m3 | 
| C. | 223.62 kg/m3 | 
| D. | 390.57 kg/m3 | 
| Answer» C. 223.62 kg/m3 | |
| 3. | Given: cupola diameter = 30cm, mass of bed charge = 270kg, coke density = 545kg/m3. Find height of groove. | 
| A. | 6 m | 
| B. | 5 m | 
| C. | 3 m | 
| D. | 7 m | 
| Answer» E. | |
| 4. | Given: cupola diameter = 50cm, Height of groove = 155cm, coke density = 480kg/m3. Find mass of bed charge. | 
| A. | 146 kg | 
| B. | 148 kg | 
| C. | 156 kg | 
| D. | 164 kg | 
| Answer» B. 148 kg | |
| 5. | Given: cupola diameter = 35cm, mass of bed charge = 300kg, coke density = 505kg/m3. Find height of groove. | 
| A. | 6.1 m | 
| B. | 5.8 m | 
| C. | 3.6 m | 
| D. | 7.2 m | 
| Answer» B. 5.8 m | |
| 6. | Given: cupola diameter = 65cm, Height of groove = 135cm, coke density = 490kg/m3. Find mass of bed charge. | 
| A. | 234.7 kg | 
| B. | 219.5 kg | 
| C. | 209.5 kg | 
| D. | 216.5 kg | 
| Answer» C. 209.5 kg | |
| 7. | GIVEN:_CUPOLA_DIAMETER_=_53CM,_MASS_OF_BED_CHARGE_=_465KG,_HEIGHT_OF_GROOVE_=_7.2M._FIND_COKE_DENSITY.?$ | 
| A. | 372.72 kg/m<sup>3</sup> | 
| B. | 292.73 kg/m<sup>3</sup> | 
| C. | 223.62 kg/m<sup>3</sup> | 
| D. | 390.57 kg/m<sup>3</sup> | 
| Answer» C. 223.62 kg/m<sup>3</sup> | |
| 8. | The_melting_rate_is_directly_proportional_to_the_diameter_of_the_cupola.$ | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 9. | The weight of the bed charge does not depend on which of the following factor? | 
| A. | Diameter of cupola | 
| B. | Height of groove | 
| C. | Type of metal used | 
| D. | Coke weight density | 
| Answer» D. Coke weight density | |
| 10. | Height of the groove is inversely related to the diameter of the cupola. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 11. | Given: cupola diameter = 50cm, Height of groove = 155cm, coke density = 480kg/m3. Find mass of bed charge. | 
| A. | 146 kg | 
| B. | 148 kg | 
| C. | 156 kg | 
| D. | 164 kg | 
| Answer» B. 148 kg | |
| 12. | What is the minimum efficiency, in general of a cupola? | 
| A. | 15% | 
| B. | 30% | 
| C. | 25% | 
| D. | 35% | 
| Answer» C. 25% | |
| 13. | Given: cupola diameter = 45cm, mass of bed charge = 325kg, height of groove = 6.5m. Find coke density. | 
| A. | 314.38 kg/m<sup>3</sup> | 
| B. | 309.54 kg/m<sup>3</sup> | 
| C. | 193.92 kg/m<sup>3</sup> | 
| D. | 340.57 kg/m<sup>3</sup> | 
| Answer» B. 309.54 kg/m<sup>3</sup> | |
| 14. | Given: cupola diameter = 35cm, mass of bed charge = 300kg, coke density = 505kg/m3. Find height of groove. | 
| A. | 6.1 m | 
| B. | 5.8 m | 
| C. | 3.6 m | 
| D. | 7.2 m | 
| Answer» B. 5.8 m | |
| 15. | Given: cupola diameter = 65cm, Height of groove = 135cm, coke density = 490kg/m3. Find mass of bed charge. | 
| A. | 234.7 kg | 
| B. | 219.5 kg | 
| C. | 209.5 kg | 
| D. | 216.5 kg | 
| Answer» C. 209.5 kg | |