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






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






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






4. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.






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






6. Why can flux be omitted in a brazed joint?






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






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






9. A bushing is NOT a good replacement for a reducer because...






10. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?






11. How far should a copper tube be inserted into a cup for a brazed joint?






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






13. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.






14. Name the three methods of transferring heat.






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






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






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






18. All of the following are process control elements EXCEPT...






19. What is used to soften PVC and remove the gloss?






20. What temperature does water boil at sea level?






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






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






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. What is the welding position 3 - on the electrode mean?






25. To assemble a 4 bolt flange...






26. What occurs in a flash tank?






27. For an extension ladder to be at the correct angle for safe use on a working surface 20ft high. The ladder must be located how many feet away from the base?






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






29. When should you ream the end of a pipe?






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






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






32. The pressure exerted by a liquid at rest is...






33. A __________ displacement pump discharges a definite quantity of liquid for each cycle.






34. What is the formula to figure take off on a 45 degree elbow?

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






36. One gallon of water occupies how many cubic feet?






37. Formula for a cubic foot of an unknown substances weight?






38. The letters MSDS stand for...






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






40. Why is it necessary to use roller hangers?






41. The combining of more than one metal is...






42. The best method to ensure that a plastic joint is made properly - you should...






43. The only entity that has the responsibility and authority to appoint the competent person is...






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






45. Which of the following methods of access to a scaffold is prohibited?






46. Which way should the bevel face on an orifice plate?






47. In a Hydronic heating system - units at the top of the system not heating are likely to be...






48. On a centrifugal pump what is rotated by the motor?






49. What do the first two digits mean in E7018 electrodes?






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