Symbol 0435 from ISO 7000 - Title/Meaning: Assistance; query 
Function/description: To indicate malfunction or to identify the control by which the operator can ask for assistance (help button).
Own work using: iso.org/obp/graphics/grs/d1181367-d396-4fc9-8b7e-73acadb1c93c 200.png
Vectorization:  Mrmw