Theory of Machines

A. yes
B. no
C. it is a marginal case
D. data are insufficient to determine it
E. unpredictable

A. eight links
B. six links
C. four links
D. twelve links
E. five links

A. four bar linkage
B. 6 bar linkage
C. 8 bar linkage
D. 3 bar linkage
E. 5 bar linkage

A. triangle
B. rectangle
C. parallelogram
D. pentagon
E. trapezoid

A. lower pairs
B. higher pairs
C. rolling pairs
D. turning pairs
E. spherical pairs

A. point or line contact between the two elements when in motion
B. surface contact between the two elements when in motion
C. elements of pairs not -held together mechanically
D. two elements that permit relative motion
E. none of the above

A. point or line contact between the two elements when in motion
B. surface contact between the two ele-ments when in motion
C. elements of pairs not held together mechanically
D. two elements that permit relative mo-tion
E. none of the above

A. straight line
B. circle
C. parabola
D. hyperbola
E. ellipse

A. machine
B. structure
C. mechanism
D. inversion
E. none of the above

A. Machines transmit mechanical work, whereas structures transmit forces
B. In machines, relative motion exists be-tween its members, whereas same does hot exist in case of structures
C. Machines modify movement and work, whereas structures modify forces
D. Efficiency of machines as well as structures is below 100%
E. Machines are run by electric motors, but structures are not