Test your basic knowledge |

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. A rating of 150# refers to a flange's...






2. The color code for DWV copper is...






3. The control point adjustment on a receiver is used to change the _______________.






4. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.






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






6. A simple example of a lever is...






7. A dielectric fitting should be used on...






8. How often should the atmosphere be tested in a confined space?






9. What effect does the fill pressure (static) have on a closed loop plumbing system?






10. What is the welding position 2 - on the electrode mean?






11. The purpose of the foot switch on a power-operated pipe cutting and threading machine is to?

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

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13. A float and thermostatic trap is a...






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






15. A valve on the suction side of the pump should be...






16. What should be done first when preparing a copper joint?






17. When selecting a hanger for a piping system you should consider...






18. What is the best valve for throttling?






19. When a liquid changes immediately to a vapor it is called...






20. A gallon of water weighs...






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






22. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?






23. What are the three types of steam traps?






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






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






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






27. What is typically a final control element?






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






29. Exits from a trench 150' long and 4' deep must be located within how many feet of a worker in the trench?






30. What does a condenser do?






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






32. What causes water to move in a Hydronic system?






33. What is installed after the isolation valve and before the trap union on a standard trap assembly?






34. One foot of water exerts...






35. Use of air as a power source is known as...






36. To raise the boom of a crane you would...






37. The symbol for pi is equivalent to...






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






39. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?






40. There are __________ gallons in a cubic foot.






41. In a refrigeration system a condensable gas is...






42. OD for 1'(inch)

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






44. When brazing for medical gas or refrigeration always...






45. If you double pipe size the carrying capacity is increased...






46. The function of a steam trap is to prevent the flow of ________________ - while allowing condensate and non-condensable gases to pass through.






47. The smallest nominal size DWV copper tube is...

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48. Formula for area of a circle?






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






50. 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.