API-653 Latest Certification Tests

Topic: Open Book and Close Book

 

Question: 1

 

Aninsertplateisrequiredforanew4"nozzleintheshell.Whatistheminimumdiameterforthisinsert?

A. 4"

B. 8"

C. 12"

D. 16"

 

Answer: D

 

 Question: 2

 

Awelderisqualifiedonaplateinthe3Gposition.Thewelderisqualifiedforwhatfilletweld

position?

 

A. None

B. F,H

C. F,H,V

D. Allfillets

 

Answer: B

 

 Question: 3

 

Whenmustashimbeplacedunderapenetrometers?

 

A. Whentheareaofinterestisdarker

B. Whentheareaofinterestisdarkerbymorethan15%

C. Whentheareaofinterestislighter

D. Whentheareaofinterestislighterbymorethan15%

 

Answer: D

 

 Question: 4

 

Awelderpassesaqualificationtestusinga3NPSpipewithagroovewelD. Whatisthemaximum

pipediameterthatthewelderisnowqualifiedtoweld?

 

A. 2-7/8"

B. 4"

C. 8"

D. 40"tounlimited

 

Answer: D

 

 Question: 5

 

Aportionofa1/2"thickshellplateisreplaceD. Whatistheclosestdistanceallowedbetweenthis

plateandtheadjacentverticalweld?

 

A. 3”

B. 6”

C. 10”

D. 12"

 

Answer: B

 

 Question: 6

 

Whatisthecriticallength"L"inthecorrodedarea?

 

A. 12"

B. 24"

C. 25"

D. 40"

 

Answer: B

 

 Question: 7

 

Whatistherequiredthickness"Lin"inthiscorrodedarea?

 

A. 0.407"

B. 0.418"

C. 0.452"

D. 0.464"

 

Answer: C

 

Question: 8

 

API653setsalimitonthethicknessof"t2".Inordertoprovidea10yearrun,whatistheminimumthicknessthat"t2"canbeduringthisinspection.

 

A.  0.211"

B.  0.251"

C.  0.281"

D.  0.301"

 

Answer: D       

 

 Question: 9

 

Areinforcementplateisaddedtoanexisting6NPSnozzlE.Theshellplateis1.125"thickandthe

reinforcementplateis0.625"thick.Whatistherequiredsizeofthefilletweldjoiningthereinforcementpadtothenozzle?

 

A. 0.3125"

B. 0.4375"

C. 0.625"

D. 1.125"

 

Answer: A

 

 Question: 10

 

Duringatankrepair,anA-662-Cplateisusedforthenewshellmaterial.Theshellplateis1/4"

thick.Forthismaterial,determinethelowesttemperaturethatthetankcanoperatE.(impact

testingofthematerialhasnotbeenperformed)

 

A. -25°F

B. -10°F

C. +15°F

D. 41°F

 

Answer: C

 

Question: 11

 

An insert  plate  is  required  for  a  new  4"  nozzle  in  the  shell.  What is the minimum diameter for thisinsert?

 

A.  4"

B.  8"

C.  12"

D.  16"

 

Answer: D   

 

Question: 12

 

A   welder  is  qualified  on  a  plate  in  the  3G  position.  The welder is qualified for what fillet weld

position?

 

A.    None

B.  F, H

C.     F, H, V

D.  All fillets

 

Answer: C   

 

Question: 13

 

When must a shim be placed under a penetrometers?

 

A.  When the area of interest is darker

B.  When  the  area  of  interest  is  darker  by  more  than  15%

C.  When the area of interest is lighter

D. When  the  area  of  interest  is  lighter  by  more  than  15%

 

Answer: D   

 

Question: 14

 

A welder  passes  a  qualification  test  using  a  3  NPS  pipe  with  a  groove  welD.   What is the maximum pipe  diameter  that  the  welder  is  now  qualified  to  weld?

 

A.  2-7/8"

B.  4"

C. 8"

D.  40" to unlimited

 

Answer: D   

 

Question: 15

A   portion  of  a  1/2"  thick  shell  plate  is  replaceD.   What is the closest distance allowed between this

plate  and  the  adjacent  vertical  weld?

 

A.   3”

B.     6”

C.   10”

D.  12"

 

Answer: B   

 

Question: 16

 

What   is  the  critical  length  "L"  in  the  corroded  area?

 

A.    12"

B.     24"

C.    25"

D.   40"