4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Latest Update Graded A+

4th Class Power Engineering Unit A7: Introductory Fluid Handling Technology Latest Update Graded A+ The material designation of a valve: Select one: a. gives where the material is used b. tells what material makes up the valve c. gives the temperature to which the valve can be subjected d. tells what the material is suited for b Pipe hangers are installed at three metre intervals to: Select one: a. align the pipe, keep the pipe out of the way of foot traffic b. provide a proper drainage slope, align the pipe, allow free movement for pipe expansion c. provide a proper drainage slope, prevent leaks d. keep the pipe out of the way of foot traffic b The maximum temperature, which a non-special alloy steel valve can be used for is: Select one: a. 280 0C b. 425 0C c. 650 0C d. 1,000 0C c Before admitting any steam to a steam piping system it is imperative to first: Select one: a. warm the line up properly b. positively ensure that no water or condensate exists in the piping c. crack open the steam valve d. ensure the steam pressure is at maximum value allowed without the boiler safety valve opening b A basic ball valve must be turned this far to go from a fully closed to a fully open position: Select one: a. 1 full turn b. 3⁄4 of a turn c. 1⁄2 of a turn d. 1⁄4 of a turn d Welding together pipe size of two inch nominal size and smaller is usually done by: Select one: a. the oxygen-acetylene method b. the socket welded method c. the butt welded method d. non-pressure welders b You would use this type of valve where there is very little room between the handle and a fixed surface: Select one: a. a non-rising stem valve