Question

How was private quelch's knowledge exposed ever further as the sergents classes went on?

Answer 1

private quelch was very much interested in showing off his knowledge and also during the classes he used to regularly interrupt the professor and used to disturb the whole class.he used to answer all the questions dedicated to him and he had all the knowledge of all the things by heart,he was particularly good at technical definitions.
this is the reason quelch's knowledge exposed even further as the sergeants went on!!