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 dielectric fitting should be used on...






2. One atmosphere is equal to...






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






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






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






6. When gripping a pipe with a pipe wrench - the wrench should be adjusted so the pipe is...






7. The pipe size of a pipe changes from the ID to the OD on what pipe size?

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






9. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...






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






11. To properly align a flange you must perform what is commonly called a ______ hole...






12. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...






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






14. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...






15. What should be done to prepare a flange for the gasket installation?






16. A neutral reading on the PH scale is...






17. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?






18. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?






19. What would be the result of an incorrectly installed orifice plate?






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






21. What has the largest effect on pump alignment?






22. When a flux joint is overheated it will not...






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






24. A concentric reducer could be used to connect to a horizontal pump _______________ line.






25. OD for 5'(inch)

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






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






28. The main cause of undercutting is...






29. A device that mechanically attaches to the side of a flange on a beam is called a...






30. What is on the low side of the vapor compression cycle?






31. A triple-duty valve is installed...






32. Calculate head pressure in a section of vertical pipe?






33. Condensate lines should be pitched...






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






35. If the architectural scale is 1/4'(inch) equals 1 foot - the ratio would be...






36. What is the sum of all angles in a triangle?






37. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.






38. What is the specific gravity of water?






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






40. A Hartford loop is used for...






41. Which of the following is sometimes used as a shielding gas in the GTAW process?






42. To stop all crane movement the ______ signal should be used.






43. In the cooling cycle - which component throttles the flow of refrigerant?






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






45. A cooling tower must have a ________ or be open-site.






46. One foot of water exerts...






47. What is the best valve for throttling?






48. The last digit on a welding electrode refers to the __________ of the electrode.






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






50. Since _______________ is virtually incompressible - pressure has little effect on its volume.