MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The minimum number of teeth on the pinion in order to avoid interference for 20° stub system is |
| A. | 12 |
| B. | 14 |
| C. | 18 |
| D. | 32 |
| Answer» C. 18 | |
| 2. |
Lewis equation in spur gears is used to find the |
| A. | tensile stress in bending |
| B. | shear stress |
| C. | compressive stress in bending |
| D. | fatigue stress |
| Answer» D. fatigue stress | |
| 3. |
The form factor of a spur gear tooth depends upon |
| A. | circular pitch only |
| B. | pressure angle only |
| C. | number of teeth and circular pitch |
| D. | number of teeth and the system of teeth |
| Answer» E. | |
| 4. |
The backlash for spur gears depends upona) moduleb) pitch line velocityc) tooth profiled) both ( |
| A. | moduleb) pitch line velocityc) tooth profiled) both (a) and ( |
| B. | pitch line velocity |
| C. | tooth profile |
| D. | both (a) and (b) |
| Answer» E. | |
| 5. |
IF_THE_CENTRE_DISTANCE_OF_THE_MATING_GEARS_HAVING_INVOLUTE_TEETH_IS_INCREASED,_THEN_THE_PRESSURE_ANGLE?$ |
| A. | increases |
| B. | decreases |
| C. | remains unchanged |
| D. | none of the mentioned |
| Answer» B. decreases | |
| 6. |
Lewis equation in spur gears is used to find the$ |
| A. | tensile stress in bending |
| B. | shear stress |
| C. | compressive stress in bending |
| D. | fatigue stress |
| Answer» D. fatigue stress | |
| 7. |
The_form_factor_of_a_spur_gear_tooth_depends_upon$ |
| A. | circular pitch only |
| B. | pressure angle only |
| C. | number of teeth and circular pitch |
| D. | number of teeth and the system of teeth |
| Answer» E. | |
| 8. |
The static tooth load should be ____________ the dynamic load. |
| A. | less than |
| B. | greater than |
| C. | equal to |
| D. | none of the mentioned |
| Answer» C. equal to | |
| 9. |
Lewis equation in spur gears is applied |
| A. | only to the pinion |
| B. | only to the gear |
| C. | to stronger of the pinion or gear |
| D. | to weaker of the pinion or gear |
| Answer» E. | |
| 10. |
The allowable static stress for steel gears is approximately ____________ of the ultimate tensile stress. |
| A. | one-fourth |
| B. | one-third |
| C. | one-half |
| D. | double |
| Answer» C. one-half | |
| 11. |
The_minimum_number_of_teeth_on_the_pinion_in_order_to_avoid_interference_for_20°_stub_system_is$ |
| A. | 12 |
| B. | 14 |
| C. | 18 |
| D. | 32 |
| Answer» C. 18 | |
| 12. |
The contact ratio for gears i? |
| A. | zero |
| B. | less than one |
| C. | greater than one |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 13. |
The backlash for spur gears depends upon |
| A. | module |
| B. | pitch line velocity |
| C. | tooth profile |
| D. | both (a) and (b) |
| Answer» E. | |
| 14. |
The radial distance from the _______________ to the clearance circle is called working depth. |
| A. | addendum circle |
| B. | dedendum circle |
| C. | pitch circle |
| D. | none of the mentioned |
| Answer» B. dedendum circle | |
| 15. |
In a rack and pinion arrangement, the rack has teeth of _______________ shape. |
| A. | square |
| B. | trepazoidal |
| C. | oval |
| D. | circular |
| Answer» C. oval | |
| 16. |
A spur gear with pitch circle diameter D has number of teeth T. The module m is defined as |
| A. | m = d / T |
| B. | m = T / D |
| C. | m = π D / T |
| D. | m = D.T |
| Answer» B. m = T / D | |
| 17. |
The size of gear is usually specified by |
| A. | pressure angle |
| B. | pitch circle diameter |
| C. | circular pitch |
| D. | diametral pitch |
| Answer» C. circular pitch | |
| 18. |
The gears are termed as medium velocity gears, if their peripheral velocity is |
| A. | 1–3 m / s |
| B. | 3–15 m / s |
| C. | 15–30 m / s |
| D. | 30–50 m / s |
| Answer» C. 15‚Äö√Ñ√∂‚àö√ë‚àö¬®30 m / s | |