cattle call vs examination

cattle call

noun
  • An audition which is open to the public and thus draws a large number of applicants, many of whom are inexperienced. 

examination

noun
  • A formal test involving answering written or oral questions under a time constraint and usually without access to textbooks; typically, a large, written test administered to high school and college students covering course material studied in a semester. 

  • Interrogation, particularly by a lawyer in court or during discovery. 

  • The act of examining. 

  • Particularly, an inspection by a medical professional to establish the extent and nature of any sickness or injury. 

How often have the words cattle call and examination occurred in a corpus of books? (source: Google Ngram Viewer )