Exam (elaborations)

Practice Questions builder Questions And Correct Answers.

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Course
DC Boiler

Institution
Liberty University

Practice Questions builder Questions And Correct Answers.Practice Questions builder Questions And Correct Answers.Practice Questions builder Questions And Correct Answers.Practice Questions builder Questions And Correct Answers.Practice Questions builder Questions And Correct Answers.Practice Quest...

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Uploaded on November 2, 2024
Number of pages 10
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

practice questions builder questions and correct a

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Practice Questions builder Questions And Correct Answers

1. Globe Valve - ANS ✔✔ - A valve that should be used for fi fi fi fi fi fi fi fi fi fi fi fi

throttling is a?
fi fi fi

2. 30-70 - ANS ✔✔ - what is the acceptable range for residual
fi fi fi fi fi fi fi fi fi fi fi

sodium sulfite in the boiler maintain?
fi fi fi fi fi fi

3. 146,000 - ANS ✔✔ - what is the BTU content of a Gallon of fi fi fi fi fi fi fi fi fi fi fi fi fi

#4?
fi

4. Brine - ANS ✔✔ - what does a zeolite water softener system
fi fi fi fi fi fi fi fi fi fi fi

use as a means of regeneration?
fi fi fi fi fi fi

5. Backwash, - ANS ✔✔ - what are the steps for a Zeolite fi fi fi fi fi fi fi fi fi fi fi

rejuvenation water softener process?
fi fi fi fi

6. Condenser - ANS ✔✔ - Where is medium temperature liquid fi fi fi fi fi fi fi fi fi

found in a refrigeration cycle ?
fi fi fi fi fi fi

7. Discharge line of the compressor - ANS ✔✔ - Where is high fi fi fi fi fi fi fi fi fi fi fi

temperature vapor found in a refrigeration cycle?
fi fi fi fi fi fi fi

8. Diagonal Stays - ANS ✔✔ - what stays are used to support fi fi fi fi fi fi fi fi fi fi fi

the burner chamber in a scotch marine boiler?
fi fi fi fi fi fi fi fi

9. Grounding Conductor - ANS ✔✔ - What wire connects all fi fi fi fi fi fi fi fi fi

components of a system to physical ground or water pipe?
fi fi fi fi fi fi fi fi fi fi

10. By opening the quick opening valve first and closing it last -
fi fi fi fi fi fi fi fi fi fi fi

ANS ✔✔ - high pressure boilers equipped with a quick opening
fi fi fi fi fi fi fi fi fi fi fi

valve and a slow opening valve are blown down how?
fi fi fi fi fi fi fi fi fi fi

11. every 8 hours (once a shift) - ANS ✔✔ - How often should the
fi fi fi fi fi fi fi fi fi fi fi fi fi

water level in the boiler be checked over a 24 hour period?
fi fi fi fi fi fi fi fi fi fi fi fi

12. Annually - ANS ✔✔ - How often is the high limit switch on a fi fi fi fi fi fi fi fi fi fi fi fi fi

boiler tested?
fi fi

13. Every 8 hours (once a Shift) - ANS ✔✔ - How Often is an
fi fi fi fi fi fi fi fi fi fi fi fi fi

external inspection of a boiler performed?
fi fi fi fi fi fi

14. Shutdown Burner - ANS ✔✔ - What is the first thing to do fi fi fi fi fi fi fi fi fi fi fi fi

when shutting down a Boiler?
fi fi fi fi fi

15. Every 8 hours (once a shift) - ANS ✔✔ - How often should the
fi fi fi fi fi fi fi fi fi fi fi fi fi

1 / fififi

10
fififi

, Practice Questions builder Questions And Correct Answers

flow control be blown down
fi fi fi fi fi

16. Every 8 hours (once a shift) - ANS ✔✔ - How often should the fi fi fi fi fi fi fi fi fi fi fi fi fi

low level cutoff be tested
fi fi fi fi fi

17. To Lubricate components within the refrigeration cycle -
fi fi fi fi fi fi fi

ANS ✔✔ - why is oil added to the refrigerant
fi fi fi fi fi fi fi fi fi fi

18. the same system or other system owned by the samefi fi fi fi fi fi fi fi fi

person with restriction - ANS ✔✔ - Refrigerant that is recovered
fi fi fi fi fi fi fi fi fi fi fi

can be returned to?
fi fi fi fi

19. Stamp or Approval - ANS ✔✔ - Data printed on the fi fi fi fi fi fi fi fi fi fi

equipment nameplate includes the manufacturer, model, serial
fi fi fi fi fi fi fi

number and ___________?
fi fi fi

20. 1 BTU - ANS ✔✔ - How many BTU's does it take to rise 10lbs
fi fi fi fi fi fi fi fi fi fi fi fi fi fi

of steam from 40° to 41°?
fi fi fi fi fi fi

21. every 8 hours (once a shift) - ANS ✔✔ - How often should fi fi fi fi fi fi fi fi fi fi fi fi

permits be required when working on a Boiler?
fi fi fi fi fi fi fi fi

22. 3 : over pressure, Over heating, & Fire side Explosions - ANS
fi fi fi fi fi fi fi fi fi fi fi

✔✔ - How many things do safety controls protect against?
fi fi fi fi fi fi fi fi fi fi

23. Calcium Sulfate & Magnesium Carbonate - ANS ✔✔ - What fi fi fi fi fi fi fi fi fi

chemical compounds in water cause permanent Hardness?
fi fi fi fi fi fi fi

24. Sodium sulfite & hydrazine - ANS ✔✔ - What chemicals are fi fi fi fi fi fi fi fi fi fi

used to Combat Corrosion
fi fi fi fi

25. Bases - ANS ✔✔ - You have boiler water that is found to have fi fi fi fi fi fi fi fi fi fi fi fi fi

PH of 5, what compound do you add to neutralize
fi fi fi fi fi fi fi fi fi fi

26. Calcium carbonate & magnesium Carbonate - ANS ✔✔ - what fi fi fi fi fi fi fi fi fi

produces soft scale?
fi fi fi

27. Neutralizing amines - ANS ✔✔ - with normal oxygen and Low fi fi fi fi fi fi fi fi fi fi

alkalinity, what is added to the boiler water?
fi fi fi fi fi fi fi fi

28. Silica - ANS ✔✔ - What is hard forming Scale fi fi fi fi fi fi fi fi fi

29. Combined Phosphate treatment - ANS ✔✔ - what chemicals fi fi fi fi fi fi fi fi

are used to combat scale
fi fi fi fi fi

2 / fififi

10
fififi

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