examination paper vs exam paper

examination paper and exam paper both are nouns.

Word	Noun	Adjective	Verb	Adverb
examination paper	Yes	No	No	No
exam paper	Yes	No	No	No

As nouns, examination paper and exam paper are synonyms defined as:

Other synonyms of examination paper include question sheet, test paper.

examination paper (noun)	exam paper (noun)
a written examination	a written examination