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. What is typically a final control element?






2. What causes water hammer?






3. Steam supply using parallel flow is...






4. OD for 2'(inch)

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5. The change in state from a liquid to gas is known as...






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






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






8. Which of the following types of clamps are used to dampen a pipe's movement?






9. Zinc chills or metal fume fever are caused from welding on __________ steel.






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






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






12. One pound of water pressure is equal to...






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






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






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






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






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






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






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






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






21. What is the minimum thickness for threading PVC pipe?






22. What is the maximum pressure for an acetylene hose?






23. A guard rail system must withstand a minimum force of __________ pounds.






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






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






26. When is it safe to remove the old packing from a valve that is under pressure?






27. One foot of water exerts...






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






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






30. OD for 3'(inch)

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31. To view the west elevation the viewer's perspective is from the...






32. If the travel of a 45 degree offset is known - what formula can be used to find the advance?






33. The most that a crane should be loaded is...






34. Which one of the following alloys does not require flux when brazing copper to copper joints?






35. What is the formula to figure the area of a circle?






36. Where is a bourdon tube found?






37. 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.






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






39. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...






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






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






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






43. 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.






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






45. What does the term '(inch)never saddle a dead horse'(inch) mean?






46. The specific weight of mercury is...






47. Which of the following is NOT a reason for using cutting oil when threading pipe?






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






49. An oil separator is required on systems using...






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