MCQOPTIONS
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| 1. |
The function of a piston in a steam engine is |
| A. | to guide motion of the piston rod and to prevent it from bending |
| B. | to transfer motion from the piston to the cross-head |
| C. | to convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment |
| Answer» D. | |