Junior ride operator Courtney Williams did not know how to stop Dreamworld's Thunder River Rapids Ride that killed four people and felt under pressure not to talk to police, an inquest has heard.

The day of the tragedy, October 25, 2016, was her first day working on the ride. She did not return to work at Dreamworld again.

Ms Williams, who was the first person on the scene of the raft tragedy, told the inquest she was approached by a senior Dreamworld management figure after the tragedy occurred and told not to speak to police.

However, a police officer wearing a body camera did approach her and she gave a statement while still at the ride. Parts of that interview transcript were read out to the court on Wednesday.