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

Not sound
Kinematically sound
Soundness would depend upon which link is kept fixed
Data is not sufficient to determine same

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Theory of Machine
Which of the following is false statement in respect of differences between machine and structure?

In machines, relative motion exists between its members, whereas same does not exist in case of structures
Machines modify movement and work, whereas structures modify forces
Efficiency of machines as well as structures is below 100 %
Machines transmit mechanical work, whereas structures transmit forces

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