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






3. A cooling tower must have a ________ or be open-site.






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






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






6. A Hartford loop is used for...






7. The best knot to use when lifting pipe vertically is the...






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






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






10. In the cooling cycle - which component throttles the flow of refrigerant?






11. The pipe fitting that makes a 180 degree turn is called a/an?






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






13. Annealing copper...






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






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






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






17. A schematic drawing is...






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






19. What are the three rope parts used in tying knots and hitches?






20. When using a cable come-a-long - what safety device will indicate overloading?






21. When a soldered joint is overheated...






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






23. A single line drawing of a piping system represents the...






24. The main cause of undercutting is...






25. What has the largest effect on pump alignment?






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






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






28. 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...






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






30. How high must you extend a ladder above the roof or deck?

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






32. If you double pipe size the carrying capacity is increased...






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






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






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






36. A condensate receiver is used when...






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






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






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






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






41. What is the formula to calculate thermal expansion?

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42. One gallon of water weighs?






43. One cubic foot of water weighs?






44. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...






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






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






47. 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.






48. What type of sensor is directly in the process stream?






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






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