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






2. A system which the refrigerant is in the shell and cools the fluid in the tubes is...






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






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






5. The leading cause of on-the-job deaths in the construction industry is _______________.






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






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






8. Capillary action is used in...






9. 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.






10. How do you determine gear ratios?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






13. What are the three types of steam traps?






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






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






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






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






18. When should a person designated as an attendant attempt to rescue a worker that is trapped?






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






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






21. What has the largest effect on pump alignment?






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






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






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






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






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






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






28. Soldered joints should never be used on systems above...






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






30. Which of the following has the largest inside diameter?






31. A fan coil uses ______ to distribute heating or cooling to the space.






32. To fabricate a 60 degree elbow from a 90 you would...






33. Why is it necessary to use roller hangers?






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






35. What is Hydronics?






36. The color code for DWV copper is...






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






38. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.






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






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






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






42. The combining of more than one metal is...






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






44. What causes water to move in a Hydronic system?






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






46. One cubic foot of water weighs?






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






48. The only entity that has the responsibility and authority to appoint the competent person is...






49. Oil is used on a pipe machine to...






50. An ejector pump is typically used to pump __________.