"Request" is just asking for something. "Enquiry" is just asking questions about something.

Is inquiry the same as request?

A request is the act of asking someone to do something, while an inquiry is the act of asking for information. Either can be expressed as a statement or as a question, though, which might seem confusing.

What does inquiry request mean?

a seeking or request for truth, information, or knowledge. an investigation, as into an incident: a Congressional inquiry into the bribery charges. the act of inquiring or of seeking information by questioning; interrogation.