Cavan put a shaky opening quarter behind them to notch their first win in the competition at the expense of a fitful QUB side.
The students deservedly led by 0-4 to 0-1 after 12 minutes, but the early dismissal of Joe O'Brien proved ominous for Queen's and Cavan hit five points without reply to lead by 0-6 to 0-4 at the interval.
The hosts then hit three successive points to extend their lead to 0-9 to 0-4 by the 46th minute. A goal from a 21 metre free by Niall McKenna (Tyrone) six minutes later gave Queen's a lift, but Cavan finished strongly with three unanswered points to seal the spoils.
Scorers -- Cavan: R Flanagan 0-6 (0-3f), D O'Reilly, R Reilly, M Brennan, B Fitzpatrick, G Pierson, T Corr 0-1 each. Queen's: N McKenna 1-1, J O'Kane, C Crilly, C Kielt (f) 0-1 each.
Cavan -- J Reilly; P Carroll, E Smith, S Jordan; D O'Dowd, A Clarke, D O'Reilly; T Corr, P O'Reilly; K Fannin, A O'Reilly, R Flanagan; B Fitzpatrick, M Brennan, R Reilly. Subs: G Pierson for A O'Reilly (45), C Mackey for R Reilly (45), M McKeever for P Carroll (47), R Cullivan for K Fannin (55).
Queen's -- P Graham; O Duffy, L O'Neill, F McQuaid; L Howard, J O'Kane, S Finch; R Jones, N McKenna; S Barton, C Kielt, C Crilly; J O'Brien, PD Savage, C Rafferty. Subs: N McGovern for O Duffy (43), G McAleese for C Crilly (43), B Cox for R Jones (44), T O'Hagan for PD Savage (57), O Costello for S Finch (70).
Ref -- E McHugh (Tyrone)