API 574 for API 570 Questions Answered & Graded 2024/25
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Course
API 570
Institution
API 570
API Recommended Practice 574, Inspection of Piping, Tubing Valves, and Fittings, does not cover:
a. control valves.
b. piping smaller than 2" NPS.
c. tubing smaller than 1.5" diameter.
d. fittings smaller than 2" NPS
A
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API Recommended Practice 574, Inspection of Piping, Tubing...
API 574 for API 570 Questions Answered &
Graded 2024/25
API Recommended Practice 574, Inspection of Piping, Tubing Valves, and Fittings,
does not cover:
a. control valves.
b. piping smaller than 2" NPS.
c. tubing smaller than 1.5" diameter.
d. fittings smaller than 2" NPS
A
Track progress
API Recommended Practice 574, Inspection of Piping, Tubing Valves, and Fittings,
does not cover:
a. control valves.
b. piping smaller than 2" NPS.
c. tubing smaller than 1.5" diameter.
d. fittings smaller than 2" NPS - Correct Answer A
The refining industry generally uses what type piping for severe service?
a. brass
b. cast
c. seamless
d. longitudinal seam welded - Correct Answer C
Piping made by rolling plates to size and welding the seams is larger than ______
inches outside diameter.
a. 10
b. 16
c. 14
d. 12 - Correct Answer B
Steel and alloy piping are manufactured to standard dimensions in nominal pipe sizes
up to ______ inches.
a. 24
b. 36
c. 48
d. 50 - Correct Answer C
Steel and alloy piping are also manufactured to standard thicknesses designated as
schedules in nominal pipe sizes up to _______ inches.
a. 24
b. 36
c. 48
d. 50 - Correct Answer B
, The actual thickness of wrought piping may vary from its nominal thickness by a
manufacturing under tolerance of as much as _________ percent.
a. 12.5
b. 12.0
c. 10.0
d. 10.5 - Correct Answer A
Cast piping has thickness tolerance of + ______ inch and - _______ inch.
a. 1/16, 0
b. 1/16, 1/16
c. 1/32, 1/32
d. 3/64, 0 - Correct Answer A
For all nominal pipe sizes of ______ inches and smaller, the size refers to the nominal
inside diameter.
a. 10
b. 12
c. 14
d. 16 - Correct Answer B
Under tolerance of welded pipe often used in refinery service is ________ inch.
a. 0.125
b. 0.050
c. 0.010
d. 0.005 - Correct Answer C
For what service is cast iron piping normally used.
a. Nonhazardous service, such as lube oils
b. Nonhazardous service, such as water.
c. Corrosive service, such as acids.
d. Noncorrosive service, such as low temperature caustic. - Correct Answer B
Tubing is generally seamlessly drawn, but it may be welded. Its stated size is its actual:
a. outside radius.
b. inside diameter.
c. outside diameter.
d. inside radius. - Correct Answer C
There are many type valves. Which is the incorrect valve type listed below?
a. style valve
b. gate valve
c. check valve
d. globe valve - Correct Answer A
What type valve is normally used in a fully open or fully closed position?
a. gate
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