If the reactor is critical, then inserting the control rods makes the reactor subcritical and power will decrease. If the control rods are withdrawn, the reactor becomes supercritical and power increases. We employ small movements to ensure that power changes at a controlled rate. If necessary, when the control rods are fully inserted or perhaps 80-90 percent inserted, the reactor shuts down.
In brief, ârhetoricâ is any communication used to modify the perspectives of others. But this is a very broad definition that calls for more explanation. The OWLâs âIntroduction to Rhetoricâ vidcast explains more what rhetoric is and how rhetoric relates to writing.
Noun. 1. rhetorical device-a use of language that creates a literary effect (but often without regard for literal significance). rhetoric-study of the technique and rules for using language effectively (especially in public speaking). device-something in an artistic work designed to achieve a particular effect.itotes, meiosis-understatement for rhetorical effect (especially when expressing an affirmative by negating its contrary); saying `I was not a little upset' when you mean `I was very upset' is an example of litotes.