quiz vs set of questions

quiz

verb
  • To instruct (someone) by means of a quiz. 

  • To question (someone) closely, to interrogate. 

noun
  • A competition in the answering of questions. 

  • A school examination of less importance, or of greater brevity, than others given in the same course. 

set of questions

How often have the words quiz and set of questions occurred in a corpus of books? (source: Google Ngram Viewer )