Unit 3 Flashcards
What type of flexible hose connections are allowed as per the ASME a 17. one/CSA B 44 code?
Separated only by use of tools
How should the oil inlet line be divided on a hydraulic elevator with two above ground jack units?
Equally into two identical sections
Why do pipe threads get tighter as they are screwed together?
Tapered
Why is a muffler installed in a hydraulic line?
Dampens pulsations in the oil flow
what is another term for schedule 80 pipe?
Extra strong wall pipe
What coupling housing in cases the gasket and engages the circumferential pipe groove?
Grooved coupling
What do hydraulic oil pumps generate?
Oil flow
How is oil pressure expressed?
Pounds per square inch
What must be done when pressure piping is buried underground?
Protected from corrosion
Which end should Teflon pipe be applied on a threaded connection?
Male end
Where is the recommended location for the muffler installation?
Inside or outside tank depending on model
What is the maximum support spacing interval for a 2 inch diameter hydraulic pipe in the seismic zone two or greater?
2600 mm or 102 inches
What is a common method of grooving pipe?
Roll grooving
What may be used to reduce noise and vibration when supporting hydraulic piping to the building structure?
Neoprene isolators
Which of the following pipe sizes would result in the highest oil velocity given a fixed rate of flow?
2 inches
