examination paper vs question sheet

examination paper and question sheet both are nouns.

Word	Noun	Adjective	Verb	Adverb
examination paper	Yes	No	No	No
question sheet	Yes	No	No	No

As nouns, examination paper and question sheet are synonyms defined as:

Other synonyms of examination paper include exam paper, test paper.

examination paper (noun)	question sheet (noun)
a written examination	a written examination