Question

describe why private quelch was nicknamed a professor

Answer 1

because of his great knowledge

Answer 2

Hey friend,
Here is the answer you were looking for:
Private Quelch was nicknamed Professor because he had knowledge about almost everything. He had an ambition to get commission in the army. He borrowed training manuals and studied them till late in the night. He corrected the sergeant and answered all his questions promptly and correctly. He gave an excellent lecture well asked by Corporal Turnbull.
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