PHEP8 Piping Systems Flashcards
Lines that reduce wear and make large valves easier to open are ___________ ___________ lines.
Pressure equalizing.
Plastic lined pipe would most likely not be used for the transfer of:
Oils.
Most pipe is generally coated on the outside with paint, galvanize, or insulation to prevent:
All three:
Corrosion
Condensation
Heat loss
Strainers that are used to automatically strain raw water to remove silt and debris are:
Self-cleaning.
Which of the following kinds of pipe would be affected the least by corrosion:
Stainless steel.
A pipe fitting used to join lengths of pipe to permit easy opening of a line is called a:
Union.
Where frequent cleaning is necessary, it is best to use:
Duplex strainer.
A female end pipe fitting used for joining two lengths of pipe is called a:
Coupling.
Pipe having a diameter of less than 12 inches is usually designed by its:
Inside diameter.
To differentiate between pipes carrying different substances, pipe systems are often:
Color coded.
What type of gasket material would generally be used between the flanges of a piping system supplying low pressure cold services?
Rubber.
All pipe systems should be installed in accordance with:
ASCPP
A line used to control the concentration of impurities in a pressure vessel is a __________ line.
Blow down
Piping supports or hangers are used to:
All three:
Provide rigidity
Prevent metal fatigue
Provide drainage
An unexplained drop of pressure or flow through a strainer is an indication of:
Plugging
A ______________ in a pipe system is normally a pipe enlargement or volume chamber having an inlet and outlet located at the top and a drain line from the bottom.
Separator.
A line designed to supply necessary water to from a seal at a clearance and to lubricate and cool the clearance is:
Gland seal.
Y-type strainer should be installed:
Either vertically or horizontally.
To make flanged joints pressure tight, _____________ are usually inserted between the flanges.
Gaskets
To simplify drawings of pipe systems, we use _____________ to represent various components.
Symbols
A line designed to return a fluid back to a piece of equipment in order to maintain a desired fluid level, temperature, pressure, or flow:
Recirculating line
A 90 degree pipe fitting with both inside and outside threads is called:
Street elbow
In many pipe systems, large pipe loops are used to:
Permit pipe expansion
A line in a pipe system designed for routing the full system flow around a particular piece of equipment is called:
By-pass line
A device used to check oscillation or level out the movement of the fluid in a pipe system is called a:
Snubber
Where frequent cleaning is necessary, it is best to use:
Duplex strainer
The most distinguishing feature of pipe thread is their:
Taper.
