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API 574 Practice Questions 100- sure Answers_ _.pdf
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9/5/24, 3:18 PMAPI 574
Jeremiah
Practice questions for this set
Terms in this set (266)
Which of the following is not a method of Spinning.
forming piping
What method of construction is often used Rolling plate to the correct size and welding.
when making pipe larger than 16"?
API 574
What is a pipe schedule? A table listing the physical dimensions of piping including thicknesses, ID, OD, etc.
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, 9/5/24, 3:18 PM
When piping is manufactured, it may vary Under tolerance.
from its nominal thickness by a certain
amount. This is referred to as the:
What is generally the maximum under 12.5%
tolerance for wrought piping?
What is the under tolerance for pipe made .01"
of rolled and welded plate?
What is the under tolerance for cast piping Plus 1/16" and minus 0".
per ASTM A530?
For standard pipe sizes, which of the The nominal outside diameter.
following generally remains constant as wall
thickness changes?
For piping 12" and smaller, the size is based The nominal inside diameter.
upon which of the following?
For piping 14" and larger, the size designates The actual outside diameter.
which of the following?
Cast iron piping is normally used in which of Non hazardous services such as water.
the following services?
Tubing is sized by: Outside diameter.
With the exception of heater, boiler and Instrumentation, steam tracing, and lubricating oil.
exchanger tubes, tubing is primarily used for:
Which of the following is not a method for Drawing.
constructing valve bodies?
The seating surfaces of a valve may be: Non metallic, Metal to metal, Integral with the body or inserts.
Which of the following is not a method used Riveting.
to attach valves to piping?
Although most valves are manually Size of the valve, Accessibility, To permit operation by instruments
operated, some use power operation. Why is
this done?
Gate valves are used in which of the Fully open or fully closed.
following applications?
Fully ported gate valves are best described Gate valves with port openings the same size as the valve end openings.
as which of the following
Venturi type gate valves are best described Gate valves with port openings smaller than the valve end openings.
as which of the following?
Gate valves larger than 2" in size are Fully Ported.
normally which of the following types?
Venturi type gate valves should not be used In conjunction with pressure relieving devices, In services where the line may be
in which of the following services? pigged, In erosive applications such as slurry service.
When venturi type gate valves are used, The piping system should be fitted with low point drains.
which of the following precautions should
be taken in regards
Globe valves are commonly: Used to regulate fluid flow.
For fine control over throttling, a very steep Needle valve.
tapered seat may be used. This type of
APIvalve
globe 574 is known as a:
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