interrogative mood vs mood

interrogative mood and mood both are nouns.

Word	Noun	Adjective	Verb	Adverb
interrogative mood	Yes	No	No	No
mood	Yes	No	No	No

As nouns, mood is a hypernym of interrogative mood; that is, mood is a word with a broader meaning than interrogative mood:

interrogative mood: some linguists consider interrogative sentences to constitute a mood
mood: verb inflections that express how the action or state is conceived by the speaker

Other hypernyms of interrogative mood include modality, mode.

interrogative mood (noun)	mood (noun)
some linguists consider interrogative sentences to constitute a mood	a characteristic (habitual or relatively temporary) state of feeling
	verb inflections that express how the action or state is conceived by the speaker
	the prevailing psychological state