MCQOPTIONS
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MCQOPTIONS
This section includes 22 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. |
Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively. |
| A. | 7 |
| B. | 6 |
| C. | 5 |
| D. | 4 |
| Answer» B. 6 | |
| 2. |
Find the Wahl’s factor if spring index is 6. |
| A. | 1.202 |
| B. | 1.2424 |
| C. | 1.2525 |
| D. | 1.5252 |
| Answer» D. 1.5252 | |
| 3. |
Patenting is defined as the cooling below the freezing point of water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
For two springs connected in parallel, net force is equal to the sum of force in each spring. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
For two springs connected in series, the net deflection is equal to the sum of deflection in two springs. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The axial deflection of spring for the small angle of θ is given by? |
| A. | 328PDᵌN/Gd⁴ |
| B. | 8PDᵌN/Gd⁴ |
| C. | 16PDᵌN/Gd⁴ |
| D. | 8PD²N/Gdᵌ |
| Answer» C. 16PDᵌN/Gd⁴ | |
| 7. |
Martin’s factor compensates for curvature effect in springs. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
FOR_TWO_SPRINGS_CONNECTED_IN_PARALLEL,_NET_FORCE_IS_EQUAL_TO_THE_SUM_OF_FORCE_IN_EACH_SPRING.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Find the Wahl’s factor if spring index is 6.$# |
| A. | 1.2020 |
| B. | 1.2424 |
| C. | 1.2525 |
| D. | 1.5252 |
| Answer» D. 1.5252 | |
| 10. |
Patenting_is_defined_as_the_cooling_below_the_freezing_point_of_water.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
A railway wagon moving with a speed of 1.5m/s is brought to rest by bumper consisting of two springs. Mass of wagon is 100kg. The springs are compressed by 125mm. Calculate the maximum force acting on each spring. |
| A. | 1200N |
| B. | 1500N |
| C. | 1800N |
| D. | 2000N |
| Answer» D. 2000N | |
| 12. |
Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively.$ |
| A. | 7 |
| B. | 6 |
| C. | 5 |
| D. | 4 |
| Answer» B. 6 | |
| 13. |
Find the mean coil diameter of a helical compression sprig if a load of 1200N is applied on the spring. Spring index is 6, and wire diameter 7mm. |
| A. | 7/6mm |
| B. | 42mm |
| C. | 1200√ó6/7 mm |
| D. | None of the listed |
| Answer» C. 1200‚Äö√†√∂‚àö‚â•6/7 mm | |
| 14. |
Find the shear stress in the spring wire used to design a helical compression sprig if a load of 1200N is applied on the spring. Spring index is 6, and wire diameter 7mm. |
| A. | 452.2N/mm² |
| B. | 468.6N/mm² |
| C. | 512.2N/mm² |
| D. | None of the listed |
| Answer» C. 512.2N/mm¬¨¬®‚Äö√¢¬ß | |
| 15. |
For two springs connected in series, the net deflection is equal to the sum of deflection in two springs? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
For two spring connected in series, the force acting on each spring is same and equal to half of the external force. |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
A spring of stiffness constant k is cut in two equal parts. The stiffness constant of new spring will be k/2. |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
The axial deflection of spring for the small angle of θ is given by?$ |
| A. | 328PDᵌN/Gd⁴ |
| B. | 8PDᵌN/Gd⁴ |
| C. | 16PDᵌN/Gd⁴ |
| D. | 8PD²N/Gdᵌ |
| Answer» C. 16PD¬¨‚à묨¬µ‚àö‚Ä¢N/Gd‚Äö√Ñ√∂‚àö√ñ¬¨‚Ä¢ | |
| 19. |
The angle of twist for the equivalent bar to a spring is given by? (Symbols have their usual meaning) |
| A. | 8PD²N/Gd⁴ |
| B. | 16PD²N/Gd⁴ |
| C. | 16PDN/Gdᵌ |
| D. | 8PDN/Gdᵌ |
| Answer» C. 16PDN/Gd¬¨‚à묨¬µ‚àö‚Ä¢ | |
| 20. |
Martin’s factor compensates for curvature effect in springs.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 21. |
Spring having square ends has 1 inactive coil. |
| A. | True |
| B. | False |
| Answer» C. | |
| 22. |
If a spring has plain ends then number of inactive coils is? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 0 |
| Answer» E. | |