What does a 2nd engineer do, and is there a 1st engineer and a 3rd engineer?

"Captain! The 1st engineer has got his head stuck in an inlet valve!"

"OK, Send in the 2nd engineer to turn the engine over, and the 3rd engineer can pull him out when the valve opens."

"Sir!" <sound of running feet fading into the distance>

<under his breath> "Damn. Not again, I'm running out of engineers."




pca