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






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






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






4. What type of copper is recommended for refrigeration?






5. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...






6. What is Hydronics?






7. Which component in a closed control loop is the primary element?






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






9. When loosening the bolts on a flange one should...






10. 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.






11. What is the welding position 2 - on the electrode mean?






12. Why is it necessary to use flux on a soldered joint?






13. Which rigging configuration has the greatest sling strength?






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






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






16. The best method to ensure that a plastic joint is made properly - you should...






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






18. What causes water hammer?






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






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






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






22. What occurs in a flash tank?






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






24. What are the three types of steam traps?






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






26. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?






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






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






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






30. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.






31. Calculate head pressure of a vertical pipe at specific elevations.






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






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






34. Which is the correct formula for the area of a circle?






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






36. OSHA was enacted to...






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






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






39. To order a reducing tee you should specify the size by...






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






41. Guides are used near...






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






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






44. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...






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






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






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






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






49. A neutral reading on the PH scale is...






50. One atmosphere is equal to...