Info-Request (DAMSL): Introduces an obligation for the hearer to provide information.
ALTS-Question (DIT): S wants to know which one from a given list of alternative propositions is true; S believes that exactly one element of that list is true; S believes that A knows which of the alternative propositions is true.
QUERY-W (HCRC MapTask): See also /WH-Question/. QUERY-W is defined as any query not covered by the other categories (QUERY-YN, CHECK or ALIGN).  Although most moves classified as QUERY-W are wh-questions, otherwise unclassifiable queries also go in this category. This includes questions that ask the partner to choose one alternative from a set, as long as the set is not yes and no. 
Question (LINLIN): User obtains information from the system.
Or-Question/Or-Clause (SWBD-DAMSL): No specific definition given. But it is noted that one problem with or-questions is that the listener often interrupts before the or clause is complete and answers the or-question as if it were a yes-no question about the first clause.
YNQ (TRAINS): S asks a yes-no question, trying to determine the polarity of a proposition.