Theory of Machine
Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

Governor
Meyer's expansion valve
D-slide valve
Flywheel

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Theory of Machine
Which of the following statement is correct as regard to the difference between a machine and a structure?

The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another
The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only
All of these
A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

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