If there are multiple triggers for a trap, keep in mind some triggers will not work no matter what selections you make. I would also brush up on the Archaeology skill. I had my Sim excavate a few places first before attempting the temple. I want to say she was Level 4 or 5 the first time.
It also helps to Examine the trigger and look at all the choices. If three choices have a thumbs down, the fourth has a question mark, and when you select the question mark choice it doesn't disable the fire, gas or lightning find another trigger. I found out the hard way the last time I had my Sim enter the temple. Let's just say I'm happy I saved the game before I entered the temple.