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Plumbing Certification

Subject : certifications
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. One cubic foot of water weighs?






2. What is the standard for an electronic signal?






3. An exit from a trench should be no more than...

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4. What type of flame should be used to cut carbon steel?






5. When is it safe to remove the old packing from a valve that is under pressure?






6. A _______________ reamer should NOT be used with power operated pipe threading equipment






7. To determine the set on a 45 degree offset you would multiply the travel by...






8. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.






9. The specific weight of air and water is...






10. The last two digits on an E-6010 electrode specify...






11. An increase in pressure will cause the boiling point of water to ________...






12. In a typical residential air condittioning system - the evaporator is of the _______________ type - where the liquid refrigerant should be totally vaporized before it reaches the outlet of the evaporator.






13. What is the purpose of the expansion joint in a steam system?






14. Which of the following is an essential element necessary to produce an ordinary fire?






15. The change in state from solid to liquid is known as...






16. What does the evaporator do?






17. The pipe that connects the steam header to the boiler return connection is the...






18. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...






19. What is typically a final control element?






20. When should a person designated as an attendant attempt to rescue a worker that is trapped?






21. A mixing valve has ___ inlets and ___ outlets.






22. The weight of 1 cubic foot of water is...






23. What is not a requirement to size the steam trap on a heating unit?






24. Steam supply using parallel flow is...






25. The color code for type L copper is...






26. What is the main reason for the taper on a pipe thread?






27. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...






28. Steam in contact with the water it has been generated from is known as ________________ steam.






29. Calculate head pressure of a vertical pipe at specific elevations.






30. What are the three rope parts used in tying knots and hitches?






31. Although the model codes usually say the melting point of a brazing alloy must be at least 1000º F - the technical temperature specified by the Copper Development Association and the American Welding Society is __________ degrees Fahrenheit.






32. Which of the following constants are used when working with circles and areas?






33. Soldered joints should never be used on systems above...






34. In one cubic foot there are _________ cubic inches.






35. Capillary action is used in...






36. What causes pressure drop?






37. With a high pressure valve you should never _____ under pressure.






38. When a soldered joint is overheated...






39. What type of hanger uses a spring that splits the rod?






40. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.






41. How much does 1 cubic foot of air weigh?






42. Which component in a closed control loop is the primary element?






43. The 6G welding position is...






44. Why is it necessary to use flux on a soldered joint?






45. To fabricate a 60 degree elbow from a 90 you would...






46. A fan coil uses ______ to distribute heating or cooling to the space.






47. Which rigging configuration has the greatest sling strength?






48. Which of the following has the largest inside diameter?






49. The color code for type K copper is...






50. One atmosphere is equal to...







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