[Apr 20, 2023] New Updated API-570 Exam Questions 2023 [Q15-Q38]

QUESTION 15
What is the working pressure of a 150 Ib. flange, SA 350 Gr.LF6 CL 1, used at 400°F?

QUESTION 16
When an entire piping assembly is to be heat treated, but it will not fit into the furnace, what action should be taken?

QUESTION 17
What should have been the correct number and type of guide bends on the PQR?

QUESTION 18
Temperatures above can damage transducers not equipped with delay line material.

QUESTION 19
The outside diameter of piping in high-temperature service, about 800°F, should be measured to check for

QUESTION 20
In the AWS D 5.1, what is the designation for cellulose DCEP electrode?

QUESTION 21
What is the maximum Brinell hardness of base metal P-6?

QUESTION 22
Why should a leaking threaded joint not be tightened while the system is in service?

QUESTION 23
On a class 1500 NPS 4 blind flange, what is the minimum thickness permitted?

QUESTION 24
API 570 covers the inspection of__________.

QUESTION 25
Determine the MAWP of the following piping system, at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/750°F NPS 6, A285 C EFW, Straight Seam(No radiography) 6 5/8″ 0.280″
0.01 inches/year 5 Years
MAWP=

QUESTION 26
Geometric unsharpness of the radiograph of a component under 2″ th1ck shall not exceed

QUESTION 27
The minimum required pipe wall thickness or retirement thickness shall be based on pressure, mechanical and structural considerations using the appropriate design formulae and.

QUESTION 28
What is the test pressure of a metallic piping system whose design temperature is above the test temperature using the following conditions? NPS 6, SA106 Gr.B, 100 psi / 800°F

QUESTION 29
The preferred medium for pneumatic testing of small lines or systems is

QUESTION 30
The base metal is P No.1, the weld metal is A No.1, and the wall thickness is 7/8″.
What is the holding time at 1100- 1200?F for heat treatment

QUESTION 31
What classification does the majority of unit process piping fall in to?

QUESTION 32
What is a thermocouple pyrometer?

QUESTION 33
Of the following examples, which one may cause a leak in a threaded joint?

QUESTION 34
What is the required thickness of straight run pipe subject to internal pressure only, based on the following conditions: NPS 14, SA 285 Gr.C, EFW Spiral seam (No radiography), operating at 216 psi / 378?F

QUESTION 35
Where should the numbers be placed on a radiograph?

QUESTION 36
With respect to Category ‘D’ service, what is the maximum allowable undercut for a branch connection?

QUESTION 37
Which of the following applies to socket welds in piping systems?

QUESTION 38
What is the maximum length allowed for individual slag trapped in a weld in a Severe Cyclic Conditions piping system?