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 If the control rods are withdrawn, the reactor becomes supercritical and power increases.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.
A rhetorical device uses words in a certain way to convey meaning or to persuade. It can also be a technique to evoke an emotion on the part of the reader or audience. Here are examples of rhetorical devices with a definition and an example: 1  Alliteration - the recurrence of initial consonant sounds - rubber baby buggy bumpers.  Allusion - a reference to an event, literary work or person - I canât do that because I am not Superman.