MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
The direction of tangential component for a driving gear is same to the direction of rotation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the dedendum circle diameter of the pinion. |
| A. | 64.5mm |
| B. | 54.7mm |
| C. | 59.2mm |
| D. | None of the listed |
| Answer» C. 59.2mm | |
| 3. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate addendum circle diameter of the pinion. |
| A. | 59.2mm |
| B. | 72.7mm |
| C. | 65.4mm |
| D. | None of the listed |
| Answer» C. 65.4mm | |
| 4. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the centre distance. |
| A. | 125.4mm |
| B. | 132.6mm |
| C. | 118.65mm |
| D. | 145.4mm |
| Answer» D. 145.4mm | |
| 5. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the pitch circle diameter of the gear. |
| A. | 172.6mm |
| B. | 142.6mm |
| C. | 180.3mm |
| D. | 202.4mm |
| Answer» B. 142.6mm | |
| 6. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the pitch circle diameter of pinion. |
| A. | 64.7mm |
| B. | 52.6mm |
| C. | 56.6mm |
| D. | 68.8mm |
| Answer» B. 52.6mm | |
| 7. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the axial pitch. |
| A. | None of the listed |
| B. | 34.2mm |
| C. | 33.4mm |
| D. | 29.6mm |
| Answer» D. 29.6mm | |
| 8. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the transverse pressure angle in degrees. |
| A. | 17.9 |
| B. | 20.4 |
| C. | 19.6 |
| D. | 18.4 |
| Answer» C. 19.6 | |
| 9. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the transverse module. |
| A. | 4.3mm |
| B. | 4.1mm |
| C. | 3.9mm |
| D. | 3.7mm |
| Answer» B. 4.1mm | |
| 10. |
Among the normal module and transverse module, which one has greater value? |
| A. | Normal Module |
| B. | Transverse Module |
| C. | Both have equal module |
| D. | Insufficient information |
| Answer» C. Both have equal module | |
| 11. |
There is same type of tooth meshing in helical and spur gear. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Among spur gear and helical gear, which has smooth engagement and thus lesser noise? |
| A. | Helical Gears |
| B. | Spur Gears |
| C. | Both have equal noises |
| D. | Can t be determined |
| Answer» B. Spur Gears | |