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3rd Class Engineer Written Test 01/29/2009
1. Name two types of tests to determine heat content and describe one.
2. Perform a hydrostatic test.
3. Start a small non-condensing turbine.
4. What is the difference in calculating heat surface of water tube and fire tube in a boiler?
5. Calculate the heating surface of a 4” diameter fire tube 14’ long.
6. What causes cavitations' in a centrifugal pump and what damage could possibly occur?
7. What will happen when the discharge valve is closed on a centrifugal pump?
A. Relief valve opens
B. Discharge pressure goes up
C. Mechanical seals overheat
D. Discharge pressure goes down
8. Name the tests done on boiler water and what chemicals are used for water tests.
9. What damage may result if sulphur is present in the boiler flue gas?
10. How many sensible heat units would be required to raise water at 32 degrees to steam at atmospheric pressure?
11. When are two blow downs required?
12. What is the range of safety valve settings for a boiler operating at 1000 psi?
13. What happens in the huddling chamber of a safety valve?
14. Name the following CO, CO2, SO2, H2O.
15. What is caustic embitterment?
16. How is boiler H.P. determined by the state?
17. What is a tachometer used for?
18. There are two 300 H.P. boilers operating in a plant at separate locations, can a third engineer be in charge of them?
19. When would it be necessary to bring fuel to its flashpoint?
20. Convert 3” of water to psi.
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