examination paper vs test paper

examination paper and test paper both are nouns.

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

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

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

examination paper (noun)	test paper (noun)
a written examination	paper impregnated with an indicator for use in chemical tests
	a written examination