Properties of fluid

Theory of Machines (Set 1)


Multiple Choice Questions


1. The motion between a pair which takes place in __________ is known as incompletely constrained motion.




2. A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

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3. The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)




4. A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is




5. The magnitude of velocities of the points on a rigid link is




6. The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle)




7. If the opposite links of a four bar linkage are equal, the links will always form a




8. The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by




9. Two systems shall be dynamically equivalent when




10. The motion of a shaft in a circular hole is an example of