What causes water hammer Study guides, Class notes & Summaries

Study Guide Professional Home Inspector TREC/NHIE Exam - Q & A (Complete Solutions) Clay tile roof should have how much overlap? a. 6" b. 3" c. 10" d. 12 What is the heaviest roof material per sq. ft.? a. Slate/ concrete tile b. Asphalt c. Fiberglass d. Tar & gravel with ballast Wood shingle/shakes should be spaced how far apart? a. 3/8" b. 5/8" c. 1/2" d. 3/4" Flat roofs - what is the most common cause of leaking? a. Seams b. Ponding c. Parapet walls d. Gutters What does water ponding ...

What does a C value of 140 means for a pipe? - ANSWER The pipe interior is very smooth. Which primary contaminant causes Blue Baby Syndrome? - ANSWER Nitrate. What is a nutating disc? - ANSWER Type of a water meter for a small-diameter domestic service. What causes hardness in water? - ANSWER Magnesium and calcium. Which of the following is a confined aquifer with groundwater under positive pressure? - ANSWER Artesian. ____________ is an imaginary surface to which groundwater rise...

According to the Safe Drinking Water Act the basic definition of a public water supply system is any water system that supplies water for human consumption that serves: Ans: 15 service connection or over 25 persons for over 60 days a year What federal law regulates public water supplies? Ans: Safe Drinking Water Act What cause water to move through pores in soil and rocks ? Ans: Gravity What are disease producing bacteria called? Ans: Pathogenic A presence/absence coliform test utili...

S12 SPRINKLER TEST, S13 STANDPIPE TEST, SPRINKLERS WITH ALL 400 QUESTIONS AND VERIFIED CORRECT ANSWERS NEWEST TOP VERSION WITH PROFESSIONALS EVALUATION|NEW AND ADVANCED fire pump - ANSWER- a provider of liquid flow and pressure dedicated to fire protection. A fire pump is a part of a fire sprinklers system water supply and can be powered by electric, diesel or steam. connected to public water source or tank. provides higher pressure to sprinkler system Glass bulb sprinkler - ANSWER- op...

Stationary Engineer Exam Questions and Answers Latest (GRADED A+) How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - Answer 7 feet On a gas fired boiler what is the proper gas to air mixture - Answer 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 1...

High Pressure Boiler Question and answers correctly solved 2023/2024 The boiler vent location is: - correct answer Highest part of steam side of boiler What 2 elements in fuel oil produce most of its heat? - correct answer Carbon and Hydrogen A 100 psi boiler has dry saturated steam temperature of 638 degrees F. What is the water temperature? - correct answer 638 degrees F A 2 inch boiler tube has a wall thickness of 3/16 inch. What is its inside diameter? - correct answer 1 5/8 Fai...

According to the Safe Drinking Water Act the basic definition of a public water supply system is any water system that supplies water for human consumption that serves: - 15 service connection or over 25 persons for over 60 days a year What federal law regulates public water supplies? - Safe Drinking Water Act What cause water to move through pores in soil and rocks ? - Gravity What are disease producing bacteria called? - Pathogenic A presence/absence coliform test utilizes - color change...

Ammonia mixed with chlorine gas creates a white smoke The most difficult part of a water distribution operator's job. furnish a continuous supply Physical connection between a safe and potentially unsafe water source. cross connection A distribution system is a looped system Dead end mains should be flushed every month Excess nitrate causes a condition called blue baby syndrome Water hardness is caused by calcium and magnesium Sewer mains should be __ft away from water mains. 9 Class C ...

High Pressure BoilerThe boiler vent location is: - correct answer Highest part of steam side of boiler What 2 elements in fuel oil produce most of its heat? - correct answer Carbon and Hydrogen A 100 psi boiler has dry saturated steam temperature of 638 degrees F. What is the water temperature? - correct answer 638 degrees F A 2 inch boiler tube has a wall thickness of 3/16 inch. What is its inside diameter? - correct answer 1 5/8 Failure of what device causes a furnace explosion? - ...

Basics covered in Level 1 correct answers Nuclear Testing Speedy Moisture Report Forms Earthwork has to do with the roadway in what way? correct answers Earthwork is the excavation and placement of soils and materials supporting the proposed roadway. In Earthwork what is a lift? correct answers 6" of compacted depth at full width In Earthwork what is a Lot? correct answers A lot is 1 lift at 500 ft or within compacted area. Isolated compaction operations are separate lots. Samplin...