MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
If the load itself begin to the screw and descend down, unless a restraining torque is applied then the condition is termed as |
| A. | Halting |
| B. | Overhaulting |
| C. | Front driving |
| D. | None of the mentioned |
| Answer» C. Front driving | |
| 2. |
If nominal diameter of screw thread=50mm and pitch=10mm then the mean diameter of the screw thread will be? |
| A. | 40mm |
| B. | 45mm |
| C. | 60mm |
| D. | 55mm |
| Answer» C. 60mm | |
| 3. |
Nominal diameter of the screw thread is the same as core diameter. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Tr 40 x 14(P 7), here 14 indicates |
| A. | Pitch |
| B. | Lead |
| C. | Diameter |
| D. | None of the mentioned |
| Answer» C. Diameter | |
| 5. |
NOMINAL_DIAMETER_OF_THE_SCREW_THREAD_IS_THE_SAME_AS_CORE_DIAMETER.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
If the load itself begin to the screw and descend down, unless a restraining torque is applied then the condition is termed as$ |
| A. | Halting |
| B. | Overhaulting |
| C. | Front driving |
| D. | None of the mentioned |
| Answer» C. Front driving | |
| 7. |
If_nominal_diameter_of_screw_thread=50mm_and_pitch=10mm_then_the_mean_diameter_of_the_screw_thread_will_be?$ |
| A. | 40mm |
| B. | 45mm |
| C. | 60mm |
| D. | 55mm |
| Answer» C. 60mm | |
| 8. |
Self-locking takes place when |
| A. | Coefficient of friction is equal to or greater than the tangent of the helix angle |
| B. | Coefficient of friction is lesser than or equal to the tangent of the helix angle |
| C. | Coefficient of friction is equal to or greater than the tangent of the helix angle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
Tr 40 x 14(P 7), here 14 indicate? |
| A. | Pitch |
| B. | Lead |
| C. | Diameter |
| D. | None of the mentioned |
| Answer» C. Diameter | |
| 10. |
Which of the following are true for buttress threads? |
| A. | Combination of square and trapezoidal threads |
| B. | Transmit motion in one direction only |
| C. | They are used in vices |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
Trapezoidal threads screws have less load carrying capacity as compared to square thread screws. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Trapezoidal threads are better than square threads as there is radial pressure or side thrust on the nut. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
V threads are highly recommended for fastening as well as power transmission purpose. |
| A. | Yes |
| B. | Never |
| C. | In some cases |
| D. | Can’t be stated |
| Answer» C. In some cases | |
| 14. |
A power screw has no problem of wear as there is very less amount of friction associated. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Depending upon the holding arrangement, power screws operate in how many different arrangements. |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 16. |
A power screw is only used to convert rotary motion into linear motion and not for transmitting power. |
| A. | True |
| B. | False |
| Answer» C. | |