3rd Engineer Written Test
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3rd Engineer Written Test



1. How do you find the area of a piston?

2. What is the heating surface of a 4 diameter tube 14 ft long?

3. What material are condenser tubes made of :  If fresh water passes through them?  If salt water passes through them?

4 How is heat transferred in a boiler?

5. Define absolute pressure.

6. Why are there soot blowers in a coal fired boiler?


7. What can you do with this license? 3rd Engineer.

8. Name the two types of safety valves.

9. Can you have an internal pipe connection on a safety valve?

10. What is grooving in a boiler?

11. What is cold end corrosion and how does it affect a boiler air heater, economizer and stack?

12. How does a Fyrite flue gas analyzer work and what does it tell you?

13. Turn these improper fractions into mixed numbers. 32/8, 19/2, 46/9, 45/8

14. In your opinion, what is the effect of material buildupon the watersides and firesides of the heating surface of a boiler.

15. Explain a reaction turbine


16. A 100 psi boiler is operating with 300F stack temps, is this boiler operating properly?

17. What contributes to the quality of water pumped by a centrifugal pump? Name at least three.

18. What is a simple test for corrosives?

19. Explain how a surface condenser operates, and how it effects turbine operations.

20. What is a quick way to find heating surface of a boiler?


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