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






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






3. What is the formula to calculate thermal expansion?

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4. What size hole should be cut into a main to saddle ON a smaller pipe?






5. What type of Copper tubing is not identified by color on the tubing itself?






6. Oil is used on a pipe machine to...






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






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






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






10. What are the main differences between soldering and brazing?






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






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






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






14. What are 3 fuel gases used for heating pipe or tubing?






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






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






17. The 6G welding position is...






18. A vent is not needed on a condensate receiver when...






19. What does a + plus sign mean?






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






21. What type of expansion joint utilizes mechanical movement?






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






23. To determine the face to center measurement of a long radius 90 degree elbow - multiply the pipe size by...






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






25. The specific gravity of a liquid can only be measured using the following instrument...






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

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27. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...






28. Which of the following is NOT acceptable as part of a personal fall arrest system?






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






30. To assemble a 4 bolt flange...






31. Which of the following is the decimal equivalent of 5/8'(inch)






32. What is the purpose for a weep hole in a saddle pad?






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






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






35. The density of water is...






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






37. An abrasive wheel should never run faster than it...






38. Standard atmospheric pressure at sea level is _____...






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






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






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






42. When ordering ACR copper specify the size by...






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






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






45. The device that controls the pressure in a low pressure steam boiler is called a...






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






47. Which type of orifice plate is designed to measure flow of liquids containing solids?






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






49. What size hole should be cut into a main to saddle IN a smaller pipe?






50. Horizontal steam supply piping should be reduced in size by using...