1.
Which of the following statement is correct? a. Soil resistivity resistivity is a measure of resistance resistance offered offered by soil to drilling operation for oil exploration and it has no connection with corrosivity of soil. b. Lower soil soil resistivity resistivity indicates less corrosive corrosive soil. c. Soil resisti resistivity vity has has nothing nothing to do with corros corrosive iveness ness of soil soil because soil corrosion depends on the amount of corrosive chemicals present in the soil. d. High Higher er so soil il resi resist stiv ivit ity y ind indic icat ates es less less co corr rros osiv ive e soi soil. l.
2.
he !!!!!!!!!! shall be responsible to the owner"user for dete determ rmin inin ing g that that the the re#u re#uir irem emen ents ts of $% $%&& '() '() for for insp inspec ecti tion on** examination* and testing are met. a+ b+ c+ d+
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%iping ,ngineer &nspector -epair rganisation perating %ersonnel
Whic Which ho off the the foll follow owin ing g are are som some e of of the the man manda dato tory ry re#u re#uir irem emen ents ts for re"rating a piping system? a.0alculations must be performed by the piping engineer or the inspector. b.0urrent inspection records records shall be reviewed to verify that the piping system is satisfactory for the proposed service conditions and that the appropriate corrosion allowance has been provided. c.he piping system is checed to affirm that the re#uired pressure relieving devices are present* are set at the appropriate pressure and have the appropriate capacity at the set pressure. d.$ll of the above
.
$fter completion of alterations alterations a pressure test is3will4 a. b. c. d.
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5ormally re#uired 5ot re#uired at all 6epend on opinion of piping inspector nly 7a8 and 7c8 above
5ame 5ame a par partt of of a pip pipin ing g sys syste tem m tha thatt thic thicn nes ess s mea measu sure reme ment nts s are are not normally routinely taen4
a+ b+ c+ d+ :.
,lbows ,xpansion loops ees 9alves
%ressure decay method is4 a.
$ techni#ue adopted for checing the leaage in above ground piping b. $ techni#ue used for checing leaage in underground piping c. $ techni#ue used for calibration of pressure gauges d. $ techni#ue used for releasing the overpressure in piping (.
Which of the following are areas on piping systems which are susceptible to 0;& during the range of 2'<= to 2')<=4 a. b. c. d.
>.
Listed below are several examples of piping system. Which is class & piping for flammable fluids? a+ b+ c+ d+
@.
$%& 22)1 $%& '( $SA, B /1 C 5one of the above
he preferred method for inspecting piping coating is4 a. b. c. d.
11.
-eadily vaporiing on leaage Slowly vaporiing on leaage 5o significant vaporiation $ll of above
Which of the following documents referenced in $%& '() addresses hot tapping? a. b. c. d.
1).
$ll the area which is below insulation &nsulated areas below steam vents &nsulated piping exposed to cooling tower mist 7b8 and 7c8 above
9isual inspection only Holiday detection A.%. 0hec 6.%. 0hec
=or which of the following* the approval from piping engineer is not mandatory4 a.
0hanging the damaged flange to a new flange of same rating and material
b
c. d. 12.
=illet welded patches Dlap patches+ shall be designed by4 a+ b+ c+ d+
1/.
b. c. d.
@ welders #ualification must be performed before procedure #ualification. @ welders #ualification should be performed after procedure #ualification is carried out using #ualified welder. ut of Welder #ualification and procedure #ualification* anything can be performed before. Welder #ualification and procedure #ualification must be performed simultaneously* without waiting for the test results.
Cuided bend test represents4 a. b. c. d.
1'.
$n engineer expert in corrosion he inspector he piping engineer he repair organiation
=or a proEect involving piping welding at site by 1) welders* Dwith only one #ualified welder+ procedure and @ welders were to be #ualified. &n this case* identify correct statement from the following4 a.
1.
$lteration on piping changing a nole sie from one not re#uiring reinforcement pad to the one re#uiring reinforcement pad =or both a and b =or none of the above
6uctility of weld Strength of weld Soundness of weld Both soundness and ductility of weld
$ll positions of groove welds are #ualified by %ipe positions 1C and 'C %ipe positions 2C and 'C %ipe position 'C and /C 5one of the above
a. b. c.
d. 1:.
$ccording to $SA, Sec. &F* a welder for SA$W can be #ualified by following minimum tests Dfor 1C pipe position+4 a. b. c. d.
1 2 2 1
tensile and 2 bend tests bend tests tensile tests and 1 bend tests tensile and 1 radiography
1(.
&dentify incorrect statement from following a.$ welder performing procedure test is also #ualified in that position. b.Supplementary essential variables become essential variables when impact test is specified. c. =or procedure #ualification* the test can be performed in any position as the position is not essential variable for procedure #ualification. d. $ /C welder #ualified in SA$W process can be employed for &C welding also in that position.
1>.
%rocedure Gualification -ecord is a document which can be revised time to time. a. b. c.
rue =alse 6epends on company policy 6epends on client of the company
d.
1@.
;se of -adiography is made for4 a. b. c. d.
2).
When dial"type indicating and recording pressure gauges are used to monitor lea testing* the maximum gauge range shall not exceed which multiple of the expected test pressure? a. b. c. d.
21.
1 2 /
times times times times
$ radiographic techni#ue in which radiation passed through two walls and both the walls are viewed on the same radiograph Ddouble wall* double image I ellipse+ the limitation for the outside diameter is4 a. b. c. d.
22.
%erformance #ualification only %rocedure #ualification only Both a and b ;se of radiography is not permitted by $SA, Sec. &F.
/"1328 28 8 $ny diameter possible
=ollowing data is available to compute remaining life of a piping circuit4
Ainimum re#uired thicness J ).22 in $ctual thicness measured J ).'12 in 0orrosion rate J ).)1> in 3 year -emaining life for this circuit will be4 a. b. c. d. 2/.
0ommon locations which are susceptible to 0;& on the insulated piping are4 a. b. c. d.
2.
$ll penetrations or breaches in the insulation Eaceting such as vents* drains* piping hangers ermination of insulation at flanges $ll insulated bends and elbows a and b above
he accuracy of magnetiing e#uipment that is e#uipped with an ammeter shall be verified4 a. b. c. d.
2'.
'.) years .' years :.) years 5one of above
,ach year ,ach two years When possible ,very : months
he W%S and the %G- are used to determine4 a. &f the welder is able to deposit sound weld metal. b. &f the welder is able to operate welding e#uipment. c. he welderKs ability to produce welds that are radiographically free of defects. d. &f a weldment has the re#uired properties for the intended application Dstrength* ductility+
2:.
Which of the following penetrant system is generally considered least sensitive? a. b. c. d.
2(.
Water"washable I visible dye. Solvent removable I visible dye. Water"washable I fluorescent dye. %ost"emulsification I visible dye.
$s soon as possible after completing an inspection* the &nspector should4
a. b. c. d.
2>.
he nondestructive examination method to be used for a particular inspection should be determined by the4 a. b. c. d.
2@.
$nnually Six monthly nce in / years 5one of the above
he pressure gauges for lea testing shall be calibrated as an $SA, Sec. 9 re#uirement* at least4 a. b. c. d.
//.
131:8 13>8 13/28 5one of the above
9isual examiner should pass aeger "1 chec4 a. b. c. d.
/2.
-adiography ;ltrasonic Hardness survey 5one of above
&n visual testing for #ualifying the procedure* a defect of which minimum width shall be used4 a. b. c. d.
/1.
$vailability of certified 56, examiners. Length of time since the last inspection. $ge of the component to be inspected. ype* location* and orientation of the expected flaws.
o verify satisfactory %WH the test conducted is4 a. b. c. d.
/).
-eview the inspection records and schedule the next inspection $lways re#uire a hydrotest Sign all - records 5otify the %iping ,ngineer
,very six months ,very one year ,very three years 5one of the above
&t is decided to carryout a surface 56 for austenitic S.S. pipe welds. 0hoose the best combination. a. b.
%enetrant testing with Halogen free developer %enetrant testing with any a#ueous developer
c. d. /.
&n ultrasonic testing* for thicness measurement on corroded surface* use4 a. b. c. d.
/'.
c+ d+
Sub"surface cracs Surface cracs Both a and b 5one of a or b
he pipe welding test position in which the pipe is horiontal and rotated so that welding taes place at or near the top is designated as? a. b. c. d.
/@.
%A& esting 5on"destructive examination 9acuum visual examination Hammer esting
=or which of the following can yoe techni#ue be used? a. b. c. d.
/>.
0orrosion under insulation in areas exposed to steam vents ;nanticipated acid or caustic carryover from processes into non"alloyed piping 0orrosion in deadlegs 0orrosion of underground piping at soil"to"air interface
When a pressure test is not necessary or practical* what shall be utilised in lieu of a pressure test? a+ b+ c+ d+
/(.
0- read out 6igital read out $ny of above 5one of above.
$n example of service"specific corrosion is4 a+ b+
/:.
Aagnetic particle testing with wet particles Aagnetic particle testing with dry particles
2 ' / 1
C C C C
$%& '(> gives rules for $lloy 9erification for4 a. b. c. d.
0arbon steel piping material for old or new piping $lloy steel piping materials* for old or new piping 0arbon steel materials used for old piping only $lloy steels used for old piping only
).
=or thicness measurement of pipes 5%S 1 and smaller* 56 techni#ue employed would be4 a. b. c. d.
;ltrasonic techni#ue -adiographic profile techni#ue $nyone is oay. 5one are oay.
1. $%& '(> re#uires at least !!!!!!!!! electrodes to be %A& tested from each box. a. b. c. d.
2.
Which of the following mae pipe system most susceptible to 0;&? a. b. c. d.
/.
%ainted pipes operating at 1')N = &nsulated pipes operating at 1')N = %roEections* penetrations in 7a8 %roEections* penetrations in 7b8
=reee damage can occur in case of which of the following fluids4 a. b. c. d.
.
ne wo Ainimum 1)M $ll
Water only il only Water and a#ueous solutions 5one of the above
=or calculating A$W% of %iping 0ircuit which is put in service the wall thicness used in computations is4 a. $ctual thicness as determined by inspection. b. $ctual thicness minus the estimated corrosion loss before the date of next inspection c. $ctual thicness minus twice the estimated corrosion loss before the date of next inspection d. 5one of the above
'.
When checing itanium materials for cracs using % methods only li#uid penetrants4 a. b. c. d.
with with with with
low or no nitrides should be used low or no carbides should be used high or medium chlorides should be used low or no chlorides should be used
:.
$s per $%& '() for bolted flanged Eoints* bolts and nuts are considered as acceptably engaged if the lac of complete engagement is4 a. b. c. d.
(.
&nspection of piping systems is carried out for purpose of4 a. b. c. d.
>.
/ times pipe diameter or 12 inches which ever is greater 2 times pipe diameter or 12 inches which ever is greater =ixed 12 inches irrespective of pipe diameter / times pipe diameter or 12 inches whichever is smaller
=or A examination by %rod techni#ue the spacing between prods shall be between4 a. b. c. d.
').
Safety -eliability of operation -egulatory re#uirements $ll of above
=or a typical 7inEection point pipe circuit8 starts upstream of inEection point from a distance of a. b. c. d.
@.
5ot more than two threads 5ot more than one thread Bolts and nuts are engaged at least ')M of threads in the nuts Bolts shall completely extend through nuts
/ /
inches inches inches inches
to to to to
12 inches 1) inches 1) inches > inches
$%& '(> Aaterial 9erification can be applied for4 a. 5ew and in"service carbon steel piping b. 5ew and in"service alloy piping c. nly in service carbon steel piping d. nly for in"service alloy piping """""""""""""""""""""""""""" ,nd """"""""""""""""""""""""""""""""""
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ANS. 6 B 6 $ 6 B 6 $ $ B $ 0 B 6 B B 6 B $ 6 $ $ 6 $ 6 $ $ 6
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Q. 2@ /) /1 /2 // / /' /: /( /> /@ ) 1 2 / ' : ( > @ ') '1 '2 '/ ' '' ':
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REFERENCE $SA, B /1./* //1.1.( $SA, 9* "@21./ $SA, 9* "@2/ $SA, 9* "1):1 Da+ $SA, 9* &&":2 Dp. 12>.1+ $SA, 9* S,"(@(* >.> $%& '()* './.' $%& '()* >.2.: $SA, 9* (''.1 $SA, &F* =ig. GW":1. $%& '(>* 1.1 $%& '()* '.:* %ara. 1 $%& '(>* .2.: $%& '()* '././.1 $%& '()* './.12 $%& '()* (.2 $SA, 9* &&":2 Dp. 12>.1+ $%& '()* '.11 D%ara. 2+ $%& '(* '.1 $%& '()* './.1 $SA, 9* "('2./ $%& '(>* 1.1
