| 1. | In railway axle boxes, the bearing used is ? | |
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deep groove ball bearing
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double row self-aligning ball bearing
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double row spherical roller bearing
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cylindrical roller bearing
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Report Question| 2. | When the axes of the first and last wheels are co-axial, then the train is known as ? | |
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simple train of wheels
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compound train of wheels
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reverted gear train
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epicyclic gear train
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| 3. | The motion of a shaft in a circular hole is an example of ? | |
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completely constrained motion
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incompletely constrained motion
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successfully constrained motion
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none of these
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| 4. | When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the ? | |
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tension in the tight side of the belt
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tension in the slack side of the belt
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sum of the tensions on the tight side and slack side of the belt
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average tension of the tight side and slack side of the belt
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| 5. | In a mechanism, the fixed instantaneous centres are those centres which ? | |
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remain in the same place for all configurations of the mechanism
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vary with the configuration of the mechanism
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moves as the mechanism moves, but joints are of permanent nature
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none of the above
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| 6. | The frictional torque transmitted by a cone clutch is same as that of ? | |
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flat pivot bearing
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flat collar bearing
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conical pivot bearing
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truncated conical pivot bearing
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| 7. | The contact ratio for gears is ? | |
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zero
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less than one
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greater than one
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infinity
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| 8. | When two links are connected by a pin joint, their instantaneous centre lies ? | |
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on their point of contact
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at the centre of curvature
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at the centre of circle
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at the pin joint
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| 9. | The cam and follower is an example of ? | |
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sliding pair
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rolling pair
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lower pair
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higher pair
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| 10. | In involute gears, the pressure angle is ? | |
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dependent on the size of teeth
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dependent on the size of gears
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always constant
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always variable
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