Plumbing Test Questions and Answers 100% Solved

Plumbing Test Questions and Answers 100% Solved Which of the following traps are permitted by special permission? A. bell B. S C. drum D. crown vented trap - answerC A roof mounted ari conditioner unit is condensing at the rate of 5 GPM. How much DFU? A. 4 B. 5 C. 10 D. 12 - answerB According to the International Plumbing Code, when plastic piping is installed in a concealed location and passing through a stud joist or rafter, the piping may not pass any closer than ___ inches from the edge of the wood member. A. 3/4 B. 1 C. 1 1/4 D. 1 1/2 - answerD The measured length along the centerline of the pip and its fittings is? A. true length B. measured length C. developed length D. actual length - answerC What is the approximated number of threads for a 2 1/2" schedule 40 pipe which will be used in a fuel gas piping system? A. 9 B. 10 C. 11 D. 12 - answerD .43 PSI = How many Feet of Head? A. 1 B. 2.31 C. 4.4 D. 43 - answerA What is the PSI at the bottom of the drainage pipe if the test for a 4" drainage system is 30' of head? A. 15 psi B. 14 psi C. 13 psi D. 12 psi - answerD PSI = feet of head x .433 30 (feet of head) x .433 = 12.99 When gas piping is installed through wood studs and is less than 1 1/4" from the nearest end of the stud, the point of passage shall be protected with a face plate not less than ___. A. 1/32 B. 1/16 C. 3/32 D. 1/8 - answerB What is the corresponding feet of head in a sprinkler system whose pressure is 40 PSI? A. 93 B. 112 C. 117 D. 116 - answerA Feet of head is 2.31 x PSI 40 x 2.325= 93 A multimeter would test for which of the following? A. current B. CFM C. CFH D. gallons per hour - answerA How is the vent from an indirect waste pipe run to the outside? A. separately, unconnected B. within an approved partition C. vertically only D. may be jointed to another vent prior to exiting the roof as long as the joining is above the ceiling - answerA If the claim be for the planting of any trees, vines, plants or hedge, the lien must be filed within 4 months of the ___. A. planting B. purchase C. contract signing D. delivery - answerA Which of the following codes has been