API 570 Model Questions-3

API 570 Model question-3 The following is a collection of questions remembered by various students who took API 570 exam in the ast! The answers will be found in the following reference ublications API Standard 570 Piping inspector code API Recommended practice 574 ASME Boiler  Pressure !essel code Sec"# "on#destructive examination Sec"I$ $elding and bra%ing qualifications ASME B %&"5 Pipe 'langes  (langed 'ittings ASME B 3%"3 Process Piping &'!

A hysical hysical change change in any comonent comonent that that has design imlicat imlications ions affecting affecting the ressure ressure contain containing ing caacity caacity of a iing system is defined as a(n) *********** A! +! ,! -!

rework reair renewal alter teratio tion

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-etermine -etermine the the 2A$P3 2A$P3 at the next next insecti insection3 on3 of the followin following g iing system system based based on the followi following ng -esign ressure/ Temerature Pie descrition Thickness determined from insectio tion :bserved corrosion rate "ext lanned insection

700 P.I4/006 "P. '03 .A 185 4r!,3 9$ .iral seam#"o T 0!0 in! 0!01 in/year 5 years

2A$P ; ************* A! +! ,! -!

1& P.I4 1< P.I4 71 P.I4 '15 P.I4

.ection/age ********************* eference Publication****************** &!

$hen may may a new emloyer emloyer accet accet a erforman erformance ce qualifica qualification tion made for for a revious revious emloyer emloyer== A! +! ,! -!

This action action is is not not allowe allowed d by A.293 A.293 .ecti .ection on > $hen $hen the the iin iing g engin engineer eer ar arov oves es $hen $hen the the insector insector secifica secifically lly aroves aroves $hen $hen the other other emloye emloyerr is a subcontra subcontractor ctor for the the current current emloye emloyerr

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API 5'0 2odel question#

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A term which indicates that a rovision is neither required nor rohibited! A! +! ,! -!

must may shall should


If a weldment is allowed to cool rior to heat treatment3 the rate of cooling shall be *********** A! +! ,! -!

,ontrolled 506 er hour to ambient '006 er hour to ambient $ater cooled immediately

.ection/age ********************* eference Publication****************** &&!

$et magnetic article examination shall not be erformed if the surface temerature of the art exceeds ************* A! +! ,! -!

'006, @06 2anufacturers temerature limitations '56


$hen it is necessary to verify the adequacy or direction of the magneti%ing field3 ******** shall be used! A! +! ,! -!

A ie#shaed magnetic article field indicator A olari%ed lens tye indicator A florescent light with aroriate safety shield Iron owder in a non#aqueous base


The ?oint efficiency of an in#service iing system is less than '3 corrosion was found3 along the long seam of the ie3 using ultrasonic insection techniques! The corrosion rates require the iing to be re?ected! Bowever3 if the ?oint efficiency were increased the system would be accetable A! +! ,!

It is not ossible to increase the ?oint efficiency for existing iing systems The system may be radiograhed to accordance with A.29 + '! and the ?oint efficiency increased! The system may be ultrasonically insected in accordance with A.29 + '! and the ?oint efficiency increased -! +oth + and , .ection/age ********************* eference Publication****************** &
Thickness testing of small connections such as niles can be erformed by ******** A! +! ,! -!

CT digital gauges 2T PT Bammer testing

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underground iing3 8 ft! below grade is excavated for insectionD A! +! ,! -!

An Eintelligent igF must be used A remote video camera must be used "A,9 P 0'&< must be referred The sides of the trench should be shored


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As a standard technique3 the temerature of the enetrant and the surface of the art to be rocessed shall not be above **************** A! +! ,! -!

'156 506 16 8'6,


$hen valve body and/or closure ressure tests are erformed after servicing3 they should be conducted in accordance withD A! +! ,! -!

API 5<8 API 7<8 "A,9 P 0'&< A.29 + '!

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The minimum thickness at each T2G can be located by ultrasonic scanning or ******** A! +! ,! -!

Bammer testing radiograhy 2agnetic article testing Penetrant testing

.ection/age ********************* eference Publication****************** 7@!

-uring the calibration of 2T equiment the lifting ower of an -, yoke must be at least ************ A! +! ,! -!

'00 lbs! @0 lbs! '0 lbs! 5 lbs!


Gines that sweat are suscetible to deterioration at areas of ***************** A! +! ,! -!

Bigh oint vents suorts high temerature low temerature

.ection/age ********************* eference Publication****************** 7&!

.ervices that are flammable but do not significantly vaori%e when they leak and are not located in high#activity areas are labeled ***************** A! +! ,! -!

,lass ,lass ,lass ,lass

' 1  @


-uring PT test3 final interretation shall be made within what time range= A! +! ,! -!

7 to &0 min 0 to &0 min &0 to '10 min anytime after 1@ hours


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$ho shall rovide the materials3 equiment3 quality control3 and workmanshi necessary to maintain and reair the iing systems in accordance with the requirements of API 570= A! +! ,! -!

Piing engineer eair organi%ation insector oerator

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$hat is the roer dimension for a cross section which is to be sub?ected to a ,hary >#notch imact test= A! +! ,! -!

'/1F square '0 2 square '0 mm square 0!505F square


$hen insecting iing in an oerating unit3 rotective equiment shall be worn when required by regulation or byD A! +! ,! -!

The insector ?udgment The owner The fire deartment This is not a requirement

.ection/age ********************* eference Publication****************** 8'!

A ie welder successfully asses a & 4 ie test3 the welder is qualified to weld which of the following A! +! ,! -!

Pie groove welds illet welds on ie Anything that can be welded & 4 is not recogni%ed by A.29


In comliance with API 5703 otable water follows C!. ractice which allowsD A! +! ,! -!

13500 arts er million maximum chloride less than ' art er million maximum chloride 150 arts er million maximum chloride There is no maximum chloride requirement

.ection/age ********************* eference Publication****************** 8!

$hen the Cnited .tates ,oast 4uard requires a system to be ressured tested3 care should be taken to avoid *********3 if the system is sub?ect to thermal exansion! A! +! ,! -!

Cnder ressure 9xcessive ressure Pneumatic ressure testing is required in this situation Pie EshrinkageF

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Procedure and erformance tests examined by PT shall be ?udged unaccetable when the examination exhibits any indication in excess of ************** A! +! ,! -!

Ginear indications less than '/'&F long ounded indications /'&F in diameter Three relevant rounded indication in a line searated by '/8 H relevant linear indication


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The owner of buried iing should conduct surveys of the surface conditions on and ad?acent to each ieline ath every *****************! A! +! ,! -!

& months '1 months yearly 5 years

.ection/age ********************* eference Publication****************** 8&!

adiograhic film density shall be checked by a densitometer calibrated on a ste wedge film traceable to ************ A! +! ,! -!

API &50 A."T ."T T,#'A A.29 .ection I A national standard


4ate valves larger than "P. 1 usually have *********** A! +! ,! -!

ull ort oenings An E.F seat area A restricted full#oen ort A venture#gate


iller metals3 for iing welds3 shall conform to the requirements of= A! +! ,! -!

A$. A5!' A.29 .ection I A.29 .ection > API 570

.ection/age ********************* eference Publication****************** 8
-uring the insection of ./A interface3 excavation was required3 what is he minimum deth required= A! +! ,! -!

' inch to 5 inches & inches to '1 inches ' inches to '< inches Insector desecration

.ection/age ********************* eference Publication****************** <0!

If gate valves are known to be exosed to corrosion/erosion3 thickness readings should be taken in an area of high turbulence and stress3 usuallyD A! +! ,! -!

:n the gate :n the stem :n the outlet side connection +etween the seats

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API 570 Model Questions-3

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