API 570 Exam Questions With Revised Correct Detailed Answers Guaranteed Pass
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Course
API 570
Institution
API 570
API 570 Exam Questions With
Revised Correct Detailed Answers
Guaranteed Pass
1) What is the interval for thickness measurements on a class 1 piping system? -
ANSWER
lesser of 5 years or half life of the pipe
2) According to B31.3, a welder's qualification records from a previous em...
API 570 Exam Questions With
Revised Correct Detailed Answers
Guaranteed Pass
1) What is the interval for thickness measurements on a class 1 piping system? -
ANSWER lesser of 5 years or half life of the pipe
2) According to B31.3, a welder's qualification records from a previous employer
can: - ANSWER Be accepted if the inspector approves
3) When welding together piping components of different thicknesses, the thicker
part should be trimmed with a: - ANSWER 30 degree taper.
4) When performing soil-to air inspections on uncoated lines, it is recommended
to excavate the soil: - ANSWER 6-12 inches.
5) When performing preheat prior to welding or PWHT, the preheat zone and/or
PWHT must extend how far beyond the edge of the weld? - ANSWER 1 inch
6) Flange bolts are unacceptable if the bolt threads do not extend: - ANSWER
inside the nut within 1 thread of the nut face
7) Carbon steel materials are most likely to be incorrectly substituted in: -
ANSWER a chrome steel piping system.
,8) Per B31.3 how much of the fabrication should be visually examined for a pipe
in severe cyclic service: - ANSWER 100 %
9) When calibrating a UT instrument, that has a delay line with single element
unit, use: - ANSWER At least 2 test blocks with thicknesses near the max and
min to be examined.
10) During pipe repairs, which welding discontinuity is always unacceptable? -
ANSWER Cracks and Inadequate fusion
11)1 What do you call a groove in the parent metal at the toe of a weld? -
ANSWER undercut
12) The RT procedure used for a pipe repair must conform to the requirements of:
- ANSWER ASME Section 5
13) What is the minimum holding time for all pressure tests on piping? - ANSWER
10 mins
14) When a relief device or valve is removed for repair, the inspector should: -
ANSWER inspect the inside of the inlet and outlet piping where the valve was
removed.
15) Thickness measurements are suggested at pipe fittings since: - ANSWER
directional changes generally create increased turbulence and corrosion.
, 16) Flange leaks in certain fluids can cause: - ANSWER bolts to crack and
corrode
17) Heat Tracing could cause cracking in carbon steel piping which is in: -
ANSWER Caustic service
Excessive repairs to pump bearings may be a result of: - ANSWER thermal
growth
Loose or broken anchor bolts at pipe supports are most easily detected by: -
ANSWER hammer testing
A pneumatic pressure test is to be conducted on a Normal Service piping system.
During pipe erection, how many of the joint assemblies should be examined? -
ANSWER 100 %
During a pipe repair, preheat is substituted for the required PWHT. What is the
minimum preheat temperature. - ANSWER 300°
Minimum time an examiner should be in a darkened area prior to using a black
light when performing MT & PT exam - ANSWER 5 min
The corrosion rate for newly installed piping systems or for changes in service
must be established. API 570 provides three methods of determination probable
corrosion rates for these conditions. - ANSWER API 570 paragraph 7.1.2
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