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 gallon of water weighs...






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






3. What causes water hammer?






4. What type of valve should be used to bypass a control valve?






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






6. What does the evaporator do?






7. A system which the refrigerant is in the shell and cools the fluid in the tubes is...






8. 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?






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






10. The specific weight of mercury is...






11. The sum of atmospheric and gauge pressure is known as __________ pressure.






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






13. One cubic foot of water weighs?






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






15. A vertical line in an isometric drawing represents...






16. 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.






17. Condensate lines should be pitched...






18. Theoretically - a pump can raise water by suction approximately __________ feet vertically.






19. Where is a bourdon tube found?






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






21. What is the standard pressure range for a pneumatic signal?






22. What are the three types of steam traps?






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






24. Which of the following types of copper tube has the smallest wall thickness?






25. What is the best valve for throttling?






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






27. What is the expansion and compression of water vapor in a pump?






28. What has the largest effect on pump alignment?






29. What instrument is best for measuring vacuum?






30. To assemble a 4 bolt flange...






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






32. What is the standard for an electronic signal?






33. OD for 6'(inch)

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34. Steam condensate lines should use...






35. What does the stamp Oxy-Med stand for on copper tubing?






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






37. How many 2'(inch) pipes can be supplied from a 6'(inch) header?






38. Which rigging configuration has the greatest sling strength?






39. What does the crane signal with the index finger pointed forward in a swirling motion signal?






40. Where should the pressure enter a globe valve?






41. The color code for ACR copper is...






42. Which of the following is a key element of a comprehensive safety and health program?






43. You should never blow your clothes off with oxygen because oxygen is a/an






44. When loosening the bolts on a flange one should...






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






46. A direct acting thermostat is used to...






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






48. A schematic drawing is...






49. What is the welding position 1 - on the electrode mean?






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