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. Why is it necessary to use roller hangers?






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






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






4. Steam condensate lines should use...






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






6. Guides are used near...






7. The density of 1 cubic inch of Mercury is...






8. Steam condensate lines should be installed on...






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

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10. A Hartford loop is used for...






11. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?






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






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






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






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






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






17. What causes pressure drop?






18. When brazing for medical gas or refrigeration always...






19. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...






20. The color code for type M copper is...






21. The face to center measurement of any welded angle fitting equals...






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






23. What is the weakest part of a chain hoist?






24. How much heat is required to raise 1/2 pound of water 1 degree F?






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






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

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27. How much does 1 cubic foot of air weigh?






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






29. OD for 1/2'(inch)

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30. Factors in considering the site selection for a new cooling tower.






31. A gallon of water weighs...






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






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






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






35. What is typically a final control element?






36. What is installed after the isolation valve and before the trap union on a standard trap assembly?






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






38. When selecting a hanger for a piping system you should consider...






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






40. A mixing valve has ___ inlets and ___ outlets.






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






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






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






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






45. One atmosphere is equal to...






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






47. When lifting objects with sharp edges you should use a...






48. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...






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






50. 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?