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






2. .433 psig is equal to how high of a water column?






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






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






5. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?






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






7. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.






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






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






10. A gallon of water weighs...






11. A float and thermostatic trap is a...






12. A vertical line in an isometric drawing represents...






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






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






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






16. A schematic drawing is...






17. Where should the pressure enter a globe valve?






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






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






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






21. OD for 1'(inch)

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






23. 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?






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






25. The main cause of undercutting is...






26. OD for 8'(inch)

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27. What does the G stand for in the 2G - 5G and 6G weld positions?






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






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






30. A __________ displacement pump discharges a definite quantity of liquid for each cycle.






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






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






33. 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.






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






35. OD for 5'(inch)

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






37. A diamond on an instrumentation loop diagram encloses information concerning...






38. A dielectric fitting should be used on...






39. To determine the travel for a 45 degree rolling offset you would...






40. What is the formula to calculate thermal expansion?

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41. Which rigging configuration has the greatest sling strength?






42. There are __________ gallons in a cubic foot.






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






44. 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.






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






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






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






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






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






50. What is capillary action?