API 570 PRACTICE EXAM This is the “Open Book” portion of the exam. Feel free to use any of the following
API Standard 570 Piping inspector code API Recommended practice 574 ASME Sec.V, Sec.V, Sec.IX ASME B !.5 Pipe "#anges $ %#anged "ittings ASME B &.& Process Piping 1.
Determine Determine the the M!" M!" of the follow following ing piping piping system, system, at at the next inspe#tion inspe#tion,, $ase% $ase% on the following Design pressure&temperature pressure&temperature
1 psig&1-F
"ipe %es#ription
+" /, #h.0, 12B
Outsi%e %iameter of pipe, D
/.345 in.
Thi#kness %etermine% from 'nspe#tion
.16 in.
O$ser(e% )orrosion *ate
.3 in#hes&year in#hes&year
+ext planne% inspe#tion
5 7ears
M!"8 99999999999999999999 . B. ). D.
4: ps psig 3/3 ps psig 1/5 ps psig Metal loss loss ex#ee%s ex#ee%s the re;uirement re;uirements s for 5 year year inspe#tion inspe#tion inter(al inter(al
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /.
!hat is the the pressur pressure e %esign %esign thi#kness thi#kness of of +" 1, 51
.:3/” .:” .6/0” +ot enoug enough h informa informatio tion n gi(en gi(en
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999
"' 51 "ra#ti#e exam
Mohan *a=
"age 1 of 4
3.
leak test is an alternati(e to inspe#tion of $urie% piping. !hat is the minimum li;ui% pressure to a%e;uately #on%u#t this test> . B. ). D.
1 1&/ times the M!" 1 1&: times the M!" 1? greater than M!" #tual M!"
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 :.
For a single2wall material thi#kness, o(er .345”through .5, what is the hole type %esignation for a sour#e si%e penetrameter> . B. ). D.
15 14 / /5
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 5.
1 / 3 11B
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 .
On a )lass 15 +" : $lin% flange, what is the minimum thi#kness permitte%> . B. ). D.
1.1/” 1.00” /.1/” /.00”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 4.
For 1 @ in#h thi#k #ar$on steel, what is the re#ommen%e% preheat temperature> . B. ). D.
3-F /35-F 145-F +one
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 0.
Determine the M!" of the following piping system, at the next inspe#tion, $ase% on the followingA
"' 51 "ra#ti#e exam
Mohan *a=
"age / of 4
Design pressure&temperature
1 psig&1-F
"ipe %es#ription
+" /, t%, 12B
Outsi%e %iameter of pipe, D
/. in.
Thi#kness %etermine% from 'nspe#tion
./0 in.
O$ser(e% )orrosion *ate
./ in#hes&year
+ext planne% inspe#tion
5 7ears
. B. ). D.
1 55 4/3 1/5
psig psig psig psig
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 6.
!hat is the inspe#tion inter(al for $urie% piping without #atho%i# prote#tion, if the soil resisti(ity is ,5 ohm2#m> . B. ). D.
1 years 15 years 5 years !hene(er a leak is suspe#te%
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 1. !hat is the maximum length allowe% for in%i(i%ual slag trappe% in a wel% in a e(ere )y#li# )on%itions piping system> . B. ). D.
TwC3 Tw &3 E1/T 3&/3”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 11. !hat is the %esign thi#kness of +" / 1B pipe that operates at /5 psi&/-F> . B. ). D.
./45” .1” ./” +ot enough information gi(en
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 1/. !ith respe#t to )ategory D ser(i#e, what is the maximum allowa$le un%er#ut for a $ran#h #onne#tion> . Gero Hno e(i%ent imperfe#tionsI B. 1&3/ in#h ). 1 mm
"' 51 "ra#ti#e exam
Mohan *a=
"age 3 of 4
D. Both B an% ) e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 13. !hat is the hy%ro test pressure of a metalli# piping system whose %esign temperature is a$o(e the test temperature using the following #on%itions> +" , 12B, 1psi&0-F . B. ). D.
15 psig :5 psig /40 psig Test temperature (erses %esign temperatures are not %ifferent
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 1:. Determine the M!" of the following piping system, at the next inspe#tion, $ase% on the followingA Design pressure&temperature
1 psig&45-F
"ipe %es#ription
+" , t%, /052) JF!, traight seam H+o ra%iographyI
Outsi%e %iameter of pipe, D
5&0 in.
Thi#kness %etermine% from 'nspe#tion
./0 in.
O$ser(e% )orrosion *ate
.1 in#hes&year
+ext planne% inspe#tion
5 7ears
M!"8 99999999999999 . B. ). D.
5// :04 040 1/5
psig psig psig psig
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 15. 'mpa#t testing of ea#h form of material for any spe#ifi#ation shall $e %one using pro#e%ures an% apparatus in a##or%an#e withA . B. ). D.
TM 34 MJ e#tion K "' 54 ! D 1.5
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 1. 'n the ! 5.1, what is the %esignation for a #ellulose D)J" ele#tro%e> . B. ). D.
J410 J41 J11 J1
"' 51 "ra#ti#e exam
Mohan *a=
"age : of 4
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 14. !hat is the heat treatment hol%ing time $ase% on hour per in#h of #ar$on steel 1@” thi#k> . B. ). D.
/.: 1.5 1. .5
hr&in hr&in hr&in hr&in
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999
MA'P
(T)is in"ormation app#ies to *+estion 0,-0/ )ere app#ica1#e2
Design pressure&temperature
5: psi&6-F
"ipe %es#ription
+" 1/, #h.1, /05
Thi#kness from 'nspe#tion
.664”
)orrosion *ate
./3 in#hes&year
)lass 1 10. !hat is the M!" of the system> . B. ). D.
0:.4 psig 0.:4 psig :.4 psig .:4 psig
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 16. )an a 5 year inspe#tion inter(al $e performe%> . B. ). D.
7es $e#ause the M!" at the next inspe#tion is 0:.4 psig 7es $e#ause the M!" at the next inspe#tion is :.4 psig 7es $e#ause the M!" at the next inspe#tion is .:4 psig +o $e#ause the M!" at the next inspe#tion is 5: psig
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /. !hat is the minimum re;uire% thi#kness of the system liste% a$o(e> . B. ). D.
1.31/” 1.11/” .664” .5”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /1. )al#ulate the long term #orrosion rate of the system liste% a$o(e $ase% onA 5 year inter(alA thir% #y#le.
"' 51 "ra#ti#e exam
Mohan *a=
"age 5 of 4
. B. ). D.
./3” ./1” .11/” .664”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 //. )al#ulate the short term #orrosion rate of the system liste% a$o(e, $ase% on t pre(ious 8 1.11/” t last 8 .664” 5 year inter(alA thir% #y#le . B. ). D.
./3” ./1” .11/” .664”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /3. )al#ulate the remaining life of the system liste% a$o(e. . B. ). D.
Less than 1 year 5 years 1 years 15 years
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /:. !hat is the #al#ulate% thi#kness of a 15 poun%, +" 0 flange% “T” . B. ). D.
.3” .” .13” .31”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /5. !hat is the outsi%e %iameter of a gasket type J2/ for the fitting in ;uestion 11:> . B. ). D.
1./” 0./” 1/.1/” 1/./”
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /. !hat is the " num$er for the pipe in ;uestion 10> . B. ). D.
1.5 1 /:
"' 51 "ra#ti#e exam
Mohan *a=
"age of 4
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /4. !hat is the . B. ). D.
1.5 1 /:
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /0. !hat is the F num$er for J24:0 ele#tro%e> . B. ). D.
5 5.1 5./6 5.:/
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 /6. !hat is the filler num$er for J2410 ele#tro%es> . B. ). D.
1 / 3 :
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999 3. !hat is the position %esignation for wel%ing pipe in the horiontal fixe% position> . B. ). D.
/< 3< 5< <
e#tion&page 999999999999999999999 *eferen#e "u$li#ation999999999999999999
"' 51 "ra#ti#e exam
Mohan *a=
"age 4 of 4
