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| 1. Which component of the immersion heater combustion chamber seperates the cobustion chamber and makes sure air fully circulates as it travels through the heater? |
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| 2.Fuel dripping from the fuel valve, drops and falls onto which component of an immersion heater? |
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| 3. Which type of heater uses a siphon to start the fuel flowing from the fuel can to the control valve? |
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| 4. Which burner is used in a preway tent heater? |
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| 5. How many strokes are required to prime a preway heater? |
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| 6. When lighting a preway heater, you first press the reset lever of the fuel control valve down and turn the control knob to |
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| 7. The heat output on a preway heater is increased by turning the control knob |
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| 8. What would likely cause a heavy soot deposit in the burner on a preway heater? |
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| Restricted combustion air inlet |
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| 9. A fluctuating flame in a preway heater is caused by |
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| 10. during a preway tent heater operation, waht causes a high draft condition? |
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| additional lengths of smoke stacks added on |
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| 11. What size vessel is used for the 500,000 Btu field boiler? |
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| 12. the operating temperature of a field boiler is? |
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| 13. Which Safety control only funtions if the operating limit contrl fails on a field boiler? |
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| 14. The relief valve on a shower shelter boiler automatically relieves excessive pressure if the water pressure exceeds... |
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| 15. What reading should you recieve on the multimeter when starting up a field boiler? |
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| A Steady reading of at least two volts |
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| 16. Which componet is used to adjust for proper combustion? |
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| 17. Once a field boiler is operating and you notice a fuel pressure of 100lbs per square inch, what action should u take? |
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| remove end cap, turn pressure screw countercockwise until u get prroper reading |
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| 18. when checking the high limit control for operation during the checkpoint period which componet has a jumperr wire installed? |
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| 19. if a field boiler is not filled with water what trouble will occur? |
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| boil should fail to start. |
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| 20. a noisy fuel pump in a field boiler is caused by the... |
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| 21. during nozzle repair, you have to remove the nozzle screen. how is this task done? |
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| turn the screen counter clockwise by hand |
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| 22. what item is inspected for scaling and deterioation? |
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| electrode rod on low water probe |
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| 23. within what temperature range is the 150 cubic ft. refrigeration unit designed t operate. |
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