API 570 TEST BANK 2026 ACTUAL SCRIPT
QUESTIONS WITH SOLUTIONS GRADED A+
⩥ The refining industry generally uses what type piping for severe
service?
a. brass
b. cast
c. seamless
d. longitudinal seam welded. 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. 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. 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. 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. 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. 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. 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. 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.. 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.. 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. Answer: A
⩥ What type valve is normally used in a fully open or fully closed
position?
a. gate
b. globe
c. slide
d. plug. Answer: A
⩥ What type gate valves have body and port openings that are smaller
than the valves' end opening.
a. Borda tube gate valves
b. Reduced-port gate valves
QUESTIONS WITH SOLUTIONS GRADED A+
⩥ The refining industry generally uses what type piping for severe
service?
a. brass
b. cast
c. seamless
d. longitudinal seam welded. 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. 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. 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. 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. 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. 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. 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. 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.. 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.. 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. Answer: A
⩥ What type valve is normally used in a fully open or fully closed
position?
a. gate
b. globe
c. slide
d. plug. Answer: A
⩥ What type gate valves have body and port openings that are smaller
than the valves' end opening.
a. Borda tube gate valves
b. Reduced-port gate valves
