MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following given steels is popular with the name of machinery steel? |
| A. | Low carbon steel |
| B. | Medium carbon steel |
| C. | High carbon steel |
| D. | None of these |
| Answer» C. High carbon steel | |
| 2. |
Which of the following steel given in options respond fastest and easily to heat treatment? |
| A. | 7C4 |
| B. | 10C4 |
| C. | 30C8 |
| D. | 40C8 |
| Answer» E. | |
| 3. |
Which of the steel in given options is best suited for auto mobile bodies and hoods? |
| A. | 7C4 |
| B. | 10C4 |
| C. | 30C8 |
| D. | 40C8 |
| Answer» B. 10C4 | |
| 4. |
In the designation “xCb” which of the following are true? |
| A. | x indicates 100 times the average % of carbon |
| B. | b indicates 100 times the average percentage of manganese |
| C. | x indicates 10 times the average percentage of carbon while b indicates 100 times the average percentage of manganese |
| D. | b indicates 100 times the average % of carbon |
| Answer» B. b indicates 100 times the average percentage of manganese | |
| 5. |
Which of the following are true for high carbon steels? |
| A. | Carbon content=0.4% |
| B. | Respond readily to heat treatments |
| C. | Have much ductility as compared to low and medium carbon steels |
| D. | Easy to weld |
| Answer» C. Have much ductility as compared to low and medium carbon steels | |
| 6. |
WHICH_OF_THE_STEEL_IN_GIVEN_OPTIONS_IS_BEST_SUITED_FOR_AUTO_MOBILE_BODIES_AND_HOODS??$ |
| A. | 7C4 |
| B. | 10C4 |
| C. | 30C8 |
| D. | 40C8 |
| Answer» B. 10C4 | |
| 7. |
Which of the following given steels is popular with the name of machinery steel?$ |
| A. | Low carbon steel |
| B. | Medium carbon steel |
| C. | High carbon steel |
| D. | None of these |
| Answer» C. High carbon steel | |
| 8. |
Which_of_the_following_steel_given_in_options_respond_fastest_and_easily_to_heat_treatment?$ |
| A. | 7C4 |
| B. | 10C4 |
| C. | 30C8 |
| D. | 40C8 |
| Answer» E. | |
| 9. |
In the designation “xCb” which of the following are true?# |
| A. | x indicates 100 times the average % of carbon |
| B. | b indicates 100 times the average percentage of manganese |
| C. | x indicates 10 times the average percentage of carbon while b indicates 100 times the average percentage of manganese |
| D. | b indicates 100 times the average % of carbon |
| Answer» B. b indicates 100 times the average percentage of manganese | |
| 10. |
Which of the following are true about low carbon steels? |
| A. | Carbon content < 0.3% |
| B. | Also called as mild steel |
| C. | Are soft and ductile |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
The term high alloy steels is used for alloy steels containing more than ___ of alloying elements. |
| A. | 10% |
| B. | 20% |
| C. | 50% |
| D. | 70% |
| Answer» B. 20% | |
| 12. |
White cast iron is formed when |
| A. | Graphite flakes are formed |
| B. | Most of the carbon content in the alloy forms iron carbide |
| C. | No iron carbide is formed |
| D. | None of the mentioned |
| Answer» C. No iron carbide is formed | |
| 13. |
Grey Cast iron is formed when |
| A. | Carbon content in the alloy exceeds the amount that can be dissolved |
| B. | Carbon content in the alloy is less than the amount that can be dissolved |
| C. | Carbon content in the alloy is equal to the amount that can be dissolved in the alloy |
| D. | None of the mentioned |
| Answer» B. Carbon content in the alloy is less than the amount that can be dissolved | |
| 14. |
Ductile cast iron is |
| A. | Also called nodular cast iron |
| B. | Also called spheroidal graphite cast iron |
| C. | Carbon is present in form of spherical nodules |
| D. | All of the mentioned |
| Answer» E. | |