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1^st Class Fireman’s Exam.  1/15/02

1. A steam driven feed pump with a 3 inch O.D. inlet what license is needed to operate?
2. What does excessive excess air do to CO2 readings and boiler efficiency?
3. Define-Natural draft

                 -Forced draft

                 -Induced draft

                 -Balanced draft

                 -Manometer

4. Give two reasons gas is used for a pilot?
5. What is sensible heat?
6. What is  -Latent heat  -Specific heat

7. What is the discharge per stroke of a 6-8-12 simplex pump?
8. What is the amount a safety valve must relieve?
9. What are the safety devices needed on a boiler?
10.  State method for determining boiler horsepower?
11.  Is there more than 1 type of fusible plug? Explain?
12.  Which form of heat transfer is predominate in-water walls  tube and shell heaters  -air preheater

13.  Set the valves on a duplex pump in detail?
14.  What is specific gravity?
15.  What do the stamps S,M,L,V stand for?
16.   Is there a difference between relief and safety valves? Explain?
17.   What is an airpreheater an where is it located?
18.   Why are hand holes and manholes oval?
19.   What is a reducing valve?

   20.    Describe two heating systems?

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