Search found 4 matches

by Swailfish
Sun Mar 23, 2008 5:22 pm
Forum: Training Room
Topic: New 2nd class motor question
Replies: 5
Views: 7454

New 2nd class motor question

I recently wrote the 2nd class motor exam and came accross one of the new questions. "Describe a gas turbine powered water jet propulsion system. How is the shaft speed of the turbine reduced to that required by the water jet impeller? What are the advantages of this system over that of a conve...
by Swailfish
Sun Mar 23, 2008 4:50 pm
Forum: Training Room
Topic: First Class motor question
Replies: 24
Views: 25349

Nothing worse then a "used but good" part. There is something in the class societies about not mixing used parts with new parts to avoid this confusion.
by Swailfish
Sat Jan 12, 2008 9:34 am
Forum: Training Room
Topic: 2nd Class Boiler Question
Replies: 7
Views: 9625

Excelent, thanks for your help, much appreciated.
by Swailfish
Mon Jan 07, 2008 5:33 pm
Forum: Training Room
Topic: 2nd Class Boiler Question
Replies: 7
Views: 9625

2nd Class Boiler Question

I'm studying up for my 2nd class general engineering exam, and I've come across a question about operating a boiler with seawater feed. "At what density would a boiler be operated if salt water had to be used and what would be the result?" I've found that the the ppm should be maintained a...