Introduction to Piping Components
Green pipe is in Class _____ . D S V F
S
Fuel oil or gasoline piping should slope back to the tanks at a rate of _____ per foot. 2 inches 1/4 of an inch 1 inch 1/8 of an inch
1/8 of an inch
Steam used in household heating is usually at less than _____ psi. 2 15 50 125
15
Utility air systems provide pressure between _____ psig. 0 and 50 50 and 125 125 and 175 175 and 225
50 and 125
In a plant setting, one can expect compressed air systems to be in this range. 0 and 501 50 to 125 125 to 175 175 to 225
50 to 125
Most caustic pipe systems are rated for over #150 class. True False
False
Utility water is ok to drink as long as it's from a clean cup. * 1/1 True False
False
Which of the following is not an accepted response to thermal expansion? Cold springing Insulation Flexibility in layout Expansion loops
Insulation
Acid piping systems are more vulnerable to freezing at lower concentrations. True False
True
Piping systems usually expand as system temperature increases. True False
True
Saturated steam has a pressure of 50-150 psi. True False
True
Ridged _____ is a good material for extreme cold insulation. foam rubber cork fiber cork foam plastic
foam plastic
A dangerous condition known as water hammer is caused by _____. improper valve tuning hot steam contacting cooler condensate super heated steam expanding 100 times it's temperature lower feed water pressures
hot steam contacting cooler condensate
The choice of piping material is critical for chemical systems because _____ . the temperatures are very high many materials being transported will attack the piping system the materials are so expensive the flow rates are extremely high
many materials being transported will attack the piping system
Insulation material for piping where the temperature could be as high as 1,200 F or as low as -150 F would be _____ . fiberglass foam rubber mineral wool rock cork
mineral wool
Water that is safe to drink is called _____ water. utility demineralized potable cooling
potable
A bright blue colored pipe code would signify that the pipe is carrying _____. Glacier Freeze Gatorade motor oil protective materials water
protective materials
Steam with a pressure greater than 200 psi is called _____ . saturated condensate superheated water
superheated
D-class piping systems are sometimes this color. blue green yellow pink
yellow
Dangerous material piping is identified by the color _____ . red yellow green bright blue
yellow