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Answer:
An engine or motor is a machine designed to convert one form of energy into mechanical energy. Heat engines convert heat into work via various thermodynamic processes.
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The default constraint gives a value to an attribute when a new row is added to a table.
<h3>Is default a kind of constraint?</h3>
This is known to be a type of constraint that often apply a value to a column if an INSERT statement does not really give the value for the column.
Therefore, one can say that the default constraint gives a value to an attribute when a new row is added to a table.
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I believe its true because you can expand or collapse sections of it
