If you're looking for a synonym/definition for the word "alias", the answer is pseudonym. Hope this helps!
From the line : By that time will my aged years perhaps a staff require,
the effect of envisioning "aged years" would be : it reveal how weary the speaker is of waiting to see what effect she might have had on others/
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The machinery worked so badly that the revolution of the turret was stopped.
The third one (I’m not sure if your question includes answers choices or not but if so , it is in fact (C)
