# Engineering :: Theory of Machines

1.  Kinematics of machines deals with
 A. Apparatus for applying mechanical power B. Number of inter-related parts C. The forces acting on the parts of the machine D. The relative motion between the parts, neglecting the consideration of the force E. None of the above

2.  The difference between a machine and a structure is
 A. The machine serves to modify and transmit forces only whereas structures serve to modify and transmit mechanical work B. The machine serves to modify and transmit mechanical work whereas structures serve to modify and transmit forces only C. The relative motion exists between the parts of a structures whereas it does not exist in machines D. Structures are temporary constructions whereas machines are paramanent E. None of the above

3.  The mechanism used in a petrol engine is
 A. Crank mechanism B. Slider mechanism C. Slider crank mechanism D. Natural line and circular mechanism E. None of the above

4.  The rectilinear motion of a piston is converted into rotary motion by
 A. Piston rod B. Crank C. Piston pin D. Connecting rod E. Cross-head

5.  The mass moment of inertia is
 A. The resistance to angular acceleration B. The mass of every element of a body multiplied by its distance from the axis C. Any of the above D. None of the above

6.  The linear velocity of a point on a link relative to any other point on the link will be
 A. Along the line joining the two points B. Perpendicular to the line joining the two points C. Same as that of the end points of link D. Perpendicular to the lower end of the link E. None of the above

7.  In case of instantaneous centre of rotation
 A. Only three rigid links have no linear velocities relative to each other B. Two rigid links rotate instantaneously relative to each other C. One rigid link has no linear velocity D. The two rigid links have no linear velocities relative to each other at the instantaneous centre E. None of the above

8.  Dynamic of machines deals with
 A. The relative motion between the parts, neglecting the consideration of forces B. The forces acting on the parts of the machine C. The apparatus for applying mechanical power D. The number of inter-related parts, each having a definite motion E. None of the above

9.  Which of the following is a lower pair?
 A. Piston and cylinder B. Cam and follower C. Belt drive D. Gear E. None of the above

10.  In a kinematic chain the minimum number of kinematic pairs required is
 A. One B. Two C. Three D. Four E. Five