Since this word has okurigana (hiragana attached to the kanji) you know that it's probably going to be the kun'yomi reading. Here's a little mnemonic to help ya remember:
You open up your acceptance letter and shout "OOOO!!!" (う). You passed!
Yay! I got accepted into a university in Seattle!
If you don't pass next time, you'll have fewer chances of becoming a doctor.
I made a resolution that I won't go out on weekends until I pass my exams.