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 specific weight of mercury is...






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






3. Both soldered and brazed joints are made by heating a properly prepared joint to the proper temperature and the flowing of a filler metal by means of...






4. A Hartford loop is used for...






5. 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?






6. What is the best valve for throttling?






7. 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.






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






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






10. To sense the temperature remotely from the thermostat location you would use...






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






12. What type of copper tubing joint requires use of a ferrule?






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






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






15. 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.






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






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






18. What is typically a final control element?






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






20. What does the evaporator do?






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






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






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






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






25. The treatment of liquids at rest is known as...






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






27. An up-feed steam heating system has the heating units...






28. Which rigging configuration has the greatest sling strength?






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






30. The anode rod used in a hot water heater to protect it from corrosion is made of...






31. What does the G stand for in the 2G - 5G and 6G weld positions?






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






33. The pipe that connects the steam header to the boiler return connection is the...






34. One foot of water exerts...






35. If a pump is operating under static suction lift conditions - a __________ may be installed in the suction line to avoid losing the pump's prime each time the pump shuts off.






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






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






38. There are __________ gallons in a cubic foot.






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






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






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






42. What is the formula to calculate thermal expansion?

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






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






45. What is the purpose of the oxygen and acetylene regulators?






46. What type of expansion joint utilizes mechanical movement?






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






48. Condensate lines should be pitched...






49. A sling is weakest in which position?






50. Which one of the following measures and takes action?