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WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 1 OF 33

QUESTIONNAIRES ON API 5L 44th EDITION

PART – A (NON-DESTRUCTIVE TESTING)

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 2 OF 33

1. As per API 5L 44th edition, which of the following NDE is not mandatory a) Radiography Testing b) Seam Ultrasonic c) Lamination Testing d) Non of the above Q. 2. Which of the following indication are not acceptable regardless of length? a) b) c) d)

Slag Porosity Lock of fusion All of above

Q. 3. What is the maximum permissible size of single rounded indication? a) 3.2 mm b) 6.4 mm c) 3.25 mm d) 13 mm Q. 4. What is the maximum permissible length of a linear indication? a) 12.7 mm b) 13 mm c) 6.5 mm d) Non of the above Q. 5. As per API 5L 44th edition maximum permissible residual limit is a) 20 gauss average b) 25 gauss average c) 30 gauss average d) 10 gauss average Q. 6. What is acceptance limit in seam ultrasonic testing? a) Any indication below threshold are accepted b) Any indication above threshold are accepted c) Both of above d) Non of the above Q. 7. As per API 5L 44th edition what should be notch dimensions for SAW pipes a) Depth – 5% of WT, 1” length b) Depth-10% of WT, 2” Length c) Depth-10% of WT, 1” Length d) Depth- 3% of WT, 2” Length

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 3 OF 33

Q. 8. NDT personnel qualification should be as per a) Level - II b) SNT-TC-1A or ISO 11484 c) ASTM d) API Q. 9. For SAW pipes, the weld at each pipe end for a minimum distance shall be inspected by radiography testing is a) 300 mm b) 203 mm c) Not specified d) 500 mm Q. 10 What should be calibration frequency for Seam UT machine a) Once in a day b) Once in every shift c) Twice per operating shift d) Not specified Q. 11 For film radiography an IQI should appear in a) Per 50 exposure b) Each exposure c) Per 10 exposure d) 10 of exposed film Q. 12 what type of IQI can be used for radiography testing a) ISO b) ASTM c) API d) ISO/ASTM Q. 13 As per API 5L 44th edition what should be minimum density for radiographs a) b) c) d)

1.8 2.0 1.5 4.0

QUESTIONAIRES ON API 5L 44TH EDITION

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 4 OF 33

PART – B ( DESTRUCTIVE TESTING)

1) As per API 5L the gauge length for Strip Specimen of tensile test is? a) b) c) d)

49.60mm 49.80mm 50.00mm 50.80mm

2) While doing tensile test, lower jaw of machine remains? a) b) c) d)

Fixed Unfixed Middle None of these

3) For macro specimen, the ratio of etchant shall be? a) 3:1

QUESTIONAIRES ON API 5L 44TH EDITION

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 5 OF 33

b) 1:3 c) 1:2 d) 2:1 4) For macro examination the etchant contains the mixture of? a) b) c) d)

Nitric Acid + hydrochloric Acid Methanol + Nitric Acid Nitric Acid + Water None of these

5) What is the purpose of macro examination is to find out? a) b) c) d)

Bead off Width penetration & depth penetration Heat input in welding process All

6) Purpose of doing tensile test is to find out the? a) Toughness b) Strength & ductility c) Hardness d) None of these 7) HV 10 stands for? a) b) c) d)

Hardness value 10 kg High value of 10 kg Hardness Vickers 10 kg Hardness value 10 g

8) Indentor used in Vicker Hardness is? a) b) c) d)

Graphite Diamond Ball None of these

9) In tensile test, the graph is drawn between? a) b) c) d)

Load V/S Displacement Stress V/S Load Displacement V/S Load None of these

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 6 OF 33

10) Width and Thickness of the Strip Specimen for tensile test is known from? a) b) c) d)

ASTM API 5L Both None of these

11) DWTT stands for_______? a) b) c) d)

Drop Weight Tensile Test Drop Weight Tear Test Drop Weight Time Test None of these

12) The press notch of DWTT Specimen is of? a) b) c) d)

1 mm 2 mm 5 mm 4 mm

13) Notch of DWTT is made for? a) b) c) d)

Stress concentration Strain concentration Pressure None of these

14) The shape of notch in charpy impact specimen is? a) b) c) d)

V notch W notch X notch None of these

15) Charpy Impact test is done for? a) b) c) d)

Hardness Strength Toughness Ductility

16) Impact reading obtained from existing Charpy machine is in? a) Kilo Joule b) Kilogram

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 7 OF 33

c) Joule d) Gram 17) In hardness, the value should be more in? a) b) c) d)

Base Weld HAZ All

18) Purpose of Transition Curve in DWTT is to find out? a) b) c) d)

Shear Area Strength Nil Ductility All

19) As per API 5L the soaking time for impact test is? a) b) c) d)

2 min. 5 min. 10 min. 15 min.

20) The formula for % shear area in DWTT is_______? a)

( 71 – 2t ) x t -3/4 AB x 100 -------------------------(71 -2t) x t

b)

( 71 – 2t ) -3/4 AB x 100 -------------------------(71 -2t)

c)

( 71 – 2t ) x t -3/4 A x 100 -------------------------(71 -2t) x t

d)

None of these.

21) From above question, what is? a) A is ______ b) B is ______ c) T is ______

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 8 OF 33

22) As per API 5L the soaking time for DWTT of 9.80mm thk specimens is a) b) c) d)

5 Min. 10 Min. 15 Min. 20 Min

23) The dwelling time for Vickers Hardness test machine is a) b) c) d)

15 Sec 10 Sec 12 Sec 20 Sec

24) Which machine is used for Tensile and Guided bend tests? a) b) c) d)

Universal Testing Machine Vickers Hardness Machine Both None of the Above

25) In Impact/DWTT test, the temperature is checked by a) b) c) d)

Thermocouple Thermostat Thermometer None of the above

26) Which belong to sub-size specimen of Impact test as per ASTM A 370. a) b) c) d)

6.7, 7.5 mm 6.2, 7.3 mm 6.0, 7.0 mm None of the above.

27) In tensile test the Yield Strength is calculated using a) b) c) d)

Vernier Caliper Extenso meter Both None of the above.

28) In Impact test the absorbed energy follows the criteria a) Base>HAZ>Weld

QUESTIONAIRES ON API 5L 44TH EDITION

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 9 OF 33

b) Weld >HAZ>Base c) HAZ>Base>Weld. d) None of the above. 29) Higher the strength lower will be a) Hardness b) Toughness c) Ductility d) None of the above. 30) The Metallurgical Microscope is used to measure a) b) c) d)

Hardness Toughness Grain Size & Structure None of the above.

31) Brittle fracture is the next stage of a) b) c) d)

Cleavage Ductile Both None of the above.

32) In Tensile test the radius of standard strip specimen is a) b) c) d)

1” 2” 3” 4”

33) In Impact test, the notch angle of the specimen a) b) c) d)

300 350 400 450

34) In Tensile test the gauge length is measured using a) b) c) d)

Extenso meter Vernier Caliper Both None of the above.

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 10 OF 33

35) Profile Projector is used to check a) b) c) d)

Depth of the notch Width of the notch Angle of the notch All of the above

36) In Impact test, pendulum strikes the specimen in a) b) c) d)

Clockwise Anticlockwise Both None of the above

37) In Impact test full size specimen dimensions(in mm) are a) b) c) d)

10X10X55 20X10X55 15X20X55 None of the above

38) In Tensile Test, TBT stands for a) b) c) d)

Tensile Base Transverse Transverse Base Tensile Tensile Base Tensile None of the above

39) In Tensile Test, TWT stands for a) Tensile Weld Transverse b) Transverse Weld Tensile c) Tensile Weld Tensile d) None of the above 40) In DWTT, the load is applied to the specimen from a) Top b) Bottom c) Side Ways d) None of the above 41) As per API Specification, for DWTT each heat should have a) 1 Specimen b) 2 Specimen c) 3 Specimen

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 11 OF 33

d) 4 Specimen 42) The ASTM grain size no is calculated from a) N = 2n-1 b) N = 2n+2 c) N = 2n+1 d) None of the above. 43) In Impact testing, the samples are taken in which direction a) Transverse Direction b) Longitudinal Direction c) Along forming direction d) None of the above 44) The angle in Guided Bend Test is, a) b) c) d)

1800 1200 1000 900

45) In Impact test as per API 5L Notch orientation should be a) b) c) d)

Through the thickness Through the width Through the length None of the above.

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 12 OF 33

PART – C ( HYDRO TESTER & FINISHING )

Q:1 Answer:

Q:2 Answer:

Q:3 Answer:

Q:4 Answer:

Q:5

SMYS is A. Specified maximum yield strength B. Specified minimum yield strength C. Special minimum yield stress D. all above Equation for determining the hydrostatic test pressure is A. P = 2St/D B. P = 2SD/t C. P = 2Dt/S D. P = 2Sd/t (D= Ourter Diameter, d=Inner Diameter, t=Wall Thickness, S=Hoop Stress) WHICH IS THE LIMITATION OF HYDROTESTING TO BE DETECT? A Internal cracks B Slag , LOP, LOF C Porocity D all above The callibration frequency of Pressure gauge is A. weekly B. fortnightly C. Ten days D. Monthly WHICH IS CALLED VISUAL DEFECT?

QUESTIONAIRES ON API 5L 44TH EDITION

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

Answer:

Q:6 Answer:

Q:7 Answer:

Q:8 Answer:

Q:9 Answer:

Q:10 Answer:

Q:11 Answer:

Q:12 Answer:

Q:13 Answer:

Q:14 Answer:

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 13 OF 33

A Under cut B. Surface Defects C Poor Weld & Porosity D all above Which oil isn't mixed with water?

A wedolit oil B hydrolic oil C cutting oil D all above End Diameter difference acceptable A . 1 mm B. 1.4 mm C . 2 mm D 2.4 mm What parameters are shown on Chart Recorder Graph? A. Pressure & Weight B. Weight & Time C. Pressure & Time D. none of above What is the Testing Pressure & Holding Time for 30"x9.8mmwt X-70 GRADE ? A. 1710 PSI & 10 sec. B 1610 PSI & 10 sec. C. 1810 PSI & 15 sec. D. none of above % of Emulsion Oil concentration required in hydro tester pit water is A. 1% B. 1.5% C. 2% D. none of above Pi-tap is used for A. measuring wall thickness B. measuring length C. measuring Outside Diameter D. measuring Ovality As per API 5L, 44th Edition; End diameter for 30" pipe is A. , + 1.6 mm & - 1.6 mm B. , + 1.6 mm & - 0.8 mm C , + 0.8 mm & - 2.4 mm D. , + 2.4 mm & - 0.8 mm As per API 5L, 44th Edition; Body diameter for 40" pipe is A. , + 3.0 mm & - 3.0 mm B. , + 4.0 mm & - 4.0 mm C. + 3.2 mm & - 4.0 mm D. + 4.0 mm & - 3.2 mm What is the Root Face required as per API 44th Edition? A B

0.8 to 2.4 MM 0.6 to 1.8 MM

QUESTIONAIRES ON API 5L 44TH EDITION

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PAGE NO.: 14 OF 33 C D

Q:15 Answer:

Q:16 Answer:

Q:17 Answer:

Q:18 Answer:

Q:19 Answer:

Q.20 Answer:

Q.21 Answer:

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009

0.8 to 1.6 MM none of above

What is the Squareness required as per API 44th Edition ? A B C D

1.6 MM 0.6 MM 1.8 MM none of above

WHICH DEFECT CANNOT BE DETECTED BY RADIOGRAPHY? A B C D

Lamination Lack of Fusion Slag inclusion Longitudinal Crack

What is the Bevel Angle Parameters as per API? A B C D

30° to 35° 30° to 32° 28° to 35° none of above

Which Insert is used for Bevelling in Spiral-2 plant? A B C D

TNMM TGMG TNMG none of above

Which Insert is used for Facing in Spiral-2 plant? A B C D

TNMM TGMG TNMG none of above

"T" means in Insert TNMG 3309 A B C D

Triangular Nose radius Trapezoidal Thickness

Cutting speed of 30" OD pipe at 45 rpm is A

107.6 mtr/min

QUESTIONAIRES ON API 5L 44TH EDITION

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PAGE NO.: 15 OF 33 B C D

Q:22 Answer:

Q:23 Answer:

Q:24 Answer:

Q:25 Answer:

Q:26 Answer:

Q:27 Answer:

Q:28

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009

207.6 mtr/min 97.6 mtr/min 157.6 mtr/min

Straightness required as per API 5L 44th Edition for entire Pipe Length is A B C D

0.15% 0.20% 0.10% none of above

Which instrument to be used for measuring bevel angle A B C D

Vernier caliper Bevel protector Micrometer none of above

Pi-tap is used for A B C D

measuring wall thickness measuring length measuring Outside Diameter measuring Ovality

If Pipe is not centered in beveling machine than what will happen A B C D

Uneven root face Uneven Bevel angle Squareness beyond limit measuring Ovality

Cutting Speed equation (meter/min.) A B C D

pi X D / N X 1000 pi X D / N X 100 pi X D / N none of above

The cause of chattering is A B C D

diameter more or less clamping not proper pipeisnot in centre insert damage

Burr appears when,

D = Diameter N = rpm

QUESTIONAIRES ON API 5L 44TH EDITION

WELSPUN GUJARAT STAHL ROHREN LTD. ANJAR-GUJARAT (INDIA)

Answer:

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 16 OF 33

A B C D

Less tension of follower roller on pipe follower roller loose insert damage more Oval pipe

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 17 OF 33

PART – D ( FORMING )

1

2

3

4

WHICH PARAMETER REQUIRED FOR HELIX ANGLE CALCULATION A) COIL WIDTH

B)PLATE THICKNESS

C)DIA OF PIPE

D)ALL

PIPE DIA= 762MM, PLATE WIDTH=1490MM, WHAT IS SIN ANGLE(HELIX) A)31.5

C)42

B)38.5

D)35.5

IDENTIFY EDGE MILLING BEVEL ANGLE A)45°

B)40°

C)65°

D)15°

THE DISTANCE BETWEEN TWO SEAMS IN SPIRAL PIPE CALLED AS A) PITCH

B)HELIX ANGLE

C)DIAMETER

D)WELD LENGTH

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5

6

7

8

9

10

11

12

13

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 18 OF 33

HOW TO SEGREGATE THE COIL A) BY WIDTH

B)BY WEIGHT

C)BY THICKNESS

D)BY COIL NUMBER

IN WELDING PROCESS WIRE SPEED IS DIRECTLY PROPORTIONAL TO-A) CURRENT

B)VOLTAGE

C)STICK OUT

D)FLUX

IDENTIFY THE WELD WIRE GRADE FOR "SAW" A)ER70S1

B)ERSO76

C)EM12K

D)ERS017

WHISH TYPE OF WELD GEOMETRY REQUIRED FOR AUTO "GMAW" A)SQARE BUTT

B)SINGLE "V"BUTT JOINT

C)DOUBLE"V"BUTT JOINT

D)NONE

FUNCTION OF COIL CAR A) TO LIFT THE COIL

B)TO ROTATE THE COIL

C)BOTH A&B

D)NONE

WHAT IS THE GAS MIXING RATIO IN AUTO GMAW A)CO2-80%,AR-20%

B)CO2-60%,AR-40%

C)CO2-70%,AR-20%

D)CO2-50%,AR-50%

WHAT IS THE MAX COIL WIDTH CAN RUN IN SPIRAL-2 PLANT A)25OOMM

B)2200MM

C)2800MM

D)3000MM

TOTAL NUMBER OF TOOLS REQUIRED IN BEVEL CUTTER A)16

B)48

C)24

D)40

TOTAL NUMBER OF TOOLS REQUIRED FOR FACING CUTTER A)10

B)30

C)40

D)50

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15

16

17

18

19

20

21

QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 19 OF 33

MAX WELDING SPEED POSSIBLE FOR "ISAM" WELDING SYSTEM GERMANY A)5MTRS/MIN

B)6MTR/MIN

C)10MTRS/MIN

D)8MTRS/MIN

PIPE DIA= 762MM, PLATE WIDTH=1490MM, WHAT IS PITCH A)1902MM

B)1702MM

C)1802MM

D)1578MM

WHAT IS THE CAPACITY OF DECOILER A)10TON

B)40TON

C)30TON

D)20TON

WHICH TYPE OF GASES ARE USED IN AUTO GMAW A)CO2

B)ARGON

C)BOTH ARGON&CO2

D)NONE

WHAT IS THE CONSUMABLES REQUIRED FOR PERFECT ALIGNMENT IN PLASMA TORCH BODY A) ELECTRODE

B)NOZZLE

C)SWIRL RING&RETAINING CAP

D)ALL

IDENTIFY THE DIAMETER OF FILLER WIRE IN AUTO GMAW(PRESENT RUNNING) A)2.5MM

B)3.15MM

C)4.0MM

D)1.2MM

WHAT IS THE FULL FORM OF API? A) AFRICAN PETROLEUM INSTITUTE

B)AMERICAN PIPELINE INSTITUTE

C)AMERICAN PETROLEUM INSTITUTE

22

D)AFRICAN PIPELINE INSTITUTE

WHAT IS THE FULL FORM OF WPS? B)WELDING PROCEDURE A) WELDING PROPERTIES

SPECIFICATION

C)WELDING PROCEDURE

D)WELDING PROPERTIES

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QUESTIONAIRES ON API 5L 44TH EDITION

PAGE NO.: 20 OF 33

STANDARD

23

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009

SPECIFICATION

WHAT IS THE FULL FORM OF WPQ? B)WELDING PROCEDURE A) WELDER PROCEDURE QUALIFICATION

QUALIFICATION D)WELDING PERFORMANCE

C)WELDER PERFORMANCE QUALIFICATION

24

25

26

27

28

29

30

QUALIFICATION

WHAT IS FLY CROSS SEAM WELDER TROLLEY TRAVELING DISTANCE A)35

B)40

C)45

D)50

WHAT IS THE IMPORTANT EFFECT OF CURRENT IN SAW A)BURN THROUGH

B)BEAD HEIGHT

C)BEAD WIDTH

D)ALL THE ABOVE

WHAT ARE THE VARIABLES IN SAW? A) CURRENT

B)VOLTAGE

C)WELDING SPEED

D)ALL THE ABOVE

WHICH TYPE OF POWER SOURS ARE USED IN X-SEAM WELDER A)AC-AC

B)DC-DC

C)AC-DC

D)NONE

IDENTIFY THE WELD WIRE GRADE FOR "GMAW" A)ER70S1

B)ERSO76

C)EM12K

D)ERS017

WHICH STICK OUT RANGE IS SUITABLE FOR "GMAW" A)10-15MM

B)5-10MM

C)20-30MM

C)70-80MM

WHAT IS THE FULL FORM OF GMAW

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 21 OF 33

A) GAS METAL ARC WELDING

B)GOUGING METAL ARC WELDING

C)GAS MANUAL ARC WELDING

B)GOUGING MANUAL ARC WELDING

PART – E ( WELDING )

1. What is the full form of GMAW Process? a) Gas metal arc welding b) Gouging metal arc welding c) Gas manual arc welding d) Gouging manual arc welding

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QUESTIONAIRES ON API 5L 44TH EDITION

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2. Which filler wire is used in TACK Repair Station in our plant? a) EM12K b) ER70S6 c) LNS140TB d) ER70S2 3.

Which type of Gas used in GMAW manual welding in our plant? a) Co2 b) Co2 & LPG c) Ar d) O2

4. What is the diameter of the electrode used in TACK Repair in our plant? a) 3.15 mm b) 1.2 mm c) 4 mm d) 3.2 mm 5. Which polarity used in co2 welding in our plant? a) DCEN b) DCEP c) DCPN d) DCPE 6. What is the allowable offset as per API 5L? a) < 2.5 mm b) < 1.6 mm c) < 3.5 mm d) < 4.0 mm 7. Which type of defects visually found in TACK Repair station in our plant? a) LOF b) Porosity c) Crack d) LOP 8. What is the validation period for welder as per standard? a) 6 month b) 1 year c) 2 year d) 3 month 9. When voltage increases in Co2 welding, a) Wire feed speed decreases

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QUESTIONAIRES ON API 5L 44TH EDITION

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b) Current decreases c) Current increases d) None 10. What is the dimension of Tab used for Tab joint? a) 350x150 b) 450x250 c) 400x200 d) 300x100 11. What type of metal transfer carried out in Co2 welding in our plant? a) Short circuiting metal transfer b) Globular metal transfer c) Spray type metal transfer d) Pulsed arc metal transfer 12. In electrode designation ER70S6, 70 denote? a) 70,000 psi tensile strength b) 70 psi tensile strength c) 70,000 psi yield strength d) 70 psi yield strength 13. What is the full form of PQR? a) Procedure qualification report b) Properties qualification record c) Procedure qualification record d) Properties qualification report 14. What is the full form of WPS? a) Welding properties b) Welding procedure specification c) Welding procedure standard d) Welding properties specification 15. Which type of grinding wheel is used for cutting? a) 5 mm thickness b) 7 mm thickness c) 3 mm thickness d) All the above 16. What is the use of tab joining? a) To control weld quality at both end of pipe b) To hold the pipe in machine c) All the above d) None

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 24 OF 33

17. What is the % of gas mixture used in TACK repair station? a) 80% Co2 & 20% Ar b) 100% Co2 c) 100% Ar d) 20% Co2 & 80% Ar 18. What is the flow rate of gas used in TACK repair station? a) 20-30 lpm Co2 b) 10-20 lpm Co2 c) 20-30 lpm Co2 & Ar d) 10-20 lpm Co2 & Ar 19. In electrode designation ER70S6, 6 denote? a) Tensile strength b) Yield strength c) Chemical composition d) none 20. What is the AWS specification for GMAW filler wire? a) SFA 5.18 b) SFA 5.23 c) SFA 5.17 d) SFA 5.10 21. What is the position of welding in TACK repair station? a) 1G b) 6G c) 3G d) 2G 22. What are all the consumable in manual GMAW? a) Gas b) Filler wire c) All the above d) None

23. What is the defect faced in TACK repair from forming section? a) LOF b) Slag c) Porosity d) All the above

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QUESTIONAIRES ON API 5L 44TH EDITION

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24. What is importance of cleaning in TACK repair station? a) To avoid grease in groove b) To avoid mill slag c) To remove scales in the surface d) All the above 25. What are all the important safety items related to welding? a) Shielding b) Gloves c) Arm & leg guard d) All the above 26. Co2 welding is under which type in our plant? a) Automatic welding b) Semi automatic welding c) Mechanized welding d) Manual welding 27. What is the full form of WPQ? a) Welder procedure qualification b) Welding procedure qualification c) Welder performance qualification d) Welder procedure qualification

QUESTION PAPER FOR SAW PROCESS

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QUESTIONAIRES ON API 5L 44TH EDITION

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1. What is the full form of SAW Process? a) Shielded arc welding b) Submerged arc welding c) Solid arc welding d) Submerged argon welding 2. Which filler wire is used in SAW process in running order? a) EM12K b) ER70S6 c) LNS140TB d) EM12K & LNS140TB 3. What are all the consumables in SAW process? a) Filler wire b) Gas c) Flux d) Filler wire & Flux 4. The lead wire dia is generally, a) Smaller than trail wire b) Bigger than trail wire c) None of the above d) Same 5. The DCEP polarity gives, a) More deposition of weld b) More penetration c) Higher speed d) All the above 6. What is the important function of flux in SAW? a) Add alloying elements in weld b) Protect the arc from atmosphere c) Allow the gases to escape d) Stabilize the arc 7. What is the minimum preheating temperature flux? a) 50°c b) 60°c c) 70°c d) 80°c 8. What is the full form of WPS? a) Welding properties b) Welding procedure specification c) Welding procedure standard

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QUESTIONAIRES ON API 5L 44TH EDITION

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d) Welding properties specification 9. What is the advantage of SAW over SMAW? a) For high production b) For smooth weld bead c) For deep penetration d) All the above 10. What is the important feature available in SAW in our plant? a) Video system b) Laser tracking system c) Power wave power source system d) All the above 11. What is the function of DC electrode in SAW in our plant? a) For deep penetration b) For wider bead c) For narrow bead d) All the above 12. What is the trail wire and its polarity in SAW existing order? a) LNS140TB & AC b) EM12K & AC c) EM12K & DCEP d) LNS140TB & DCEN 13. What is the maximum bead height allowed as per API specification? a) 4.0 mm b) 3.2 mm c) 3.8 mm d) 3.5 mm 14. In electrode designation EM12K, 12 denote? a) .12% manganese b) .12% carbon c) Tensile strength d) Yield strength 15. What will be effect of voltage in weld quality, when it increases? a) Penetration less b) Narrow bead c) Penetration more d) Undercut 16. What are all the variables in SAW? a) Current & voltage b) Stick out

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QUESTIONAIRES ON API 5L 44TH EDITION

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c) Welding speed d) All the above 17. What is the important effect of current in SAW? a) Burn through b) Bead height c) Bead width d) All the above 18. What is the important effect of voltage in SAW ? a) Burn through b) Bead size c) Under fill d) Under cut 19. What is the stick out distance generally used for pipe welding? a) 35 mm b) 26 mm c) 15 mm d) 45 mm 20. What is the wire spacing used in tandem welding? a) 18 mm b) 25 mm c) 28 mm d) 30 mm 21. What is the full form of WPQ? a) Welder procedure qualification b) Welding procedure qualification c) Welder performance qualification d) Welder procedure qualification 22. In electrode designation EM12K, M denote? a) Mn content b) Mg content c) Tensile strength d) Yield strength 23. What is filler wire specification for SAW? a) SFA 5.18 b) SFA 5.20 c) SFA 5.17 d) SFA 5.10 24. Higher amount of finer flux leads to, a) Cracks in weld

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QUESTIONAIRES ON API 5L 44TH EDITION

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b) Porosity in weld c) Less penetration d) More deposition 25. Under cut in SAW are mainly due to, a) Lower welding speed b) Lower voltage c) Higher stick out d) None of the above 26. Minimum overlap of ID & OD weld should be, a) 0.5 mm b) 1.0 mm c) 3.0 mm d) None of the above 27. What is the function of AC electrode in SAW? a) For penetration b) For deposition c) To prevent arc blow d) All the above 28. Tabs at pipe each ends are welded to get, a) Defects free weld at ends b) Stabilization of weld parameters c) Tracking of weld seam d) None 29. What is the full form of PQR? a) Procedure qualification report b) Properties qualification record c) Procedure qualification record d) Properties qualification report 30. What is the function of cyclone separator in flux recovery system? a) To filter the fine flux particles b) For recovery of flux c) To filter the coarse flux particles d) All the above

QUESTION PAPER FOR SMAW PROCESS

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QUESTIONAIRES ON API 5L 44TH EDITION

NO.: WGSRL/API-5L/API/QUES. /01 REV.NO.: 0 DATE : 05.01.2009 PAGE NO.: 30 OF 33

1. What is the full form of SMAW Process? a) Shielded manual arc welding b) Submerged metal arc welding c) Solid metal arc welding d) Shielded metal arc welding 2. What is the Electrode used in SMAW process in our plant? a) EM12K b) ER70S6 c) E8018G d) LNS140TB 3. Which position used for SMAW in our plant? a) 1G b) 2G c) 5G d) 4G 4. Which type of electrode used in SMAW in our plant? a) Rutile electrode b) Cellosic coated c) Basic coated d) Low hydrogen Iron powder coated 5. What is the important application of SMAW? a) Repair welding b) Less cost c) Portable d) Less time 6. In electrode E8018G, 80 denotes? a) Position b) Chemical composition c) Tensile strength d) Yield strength 7. What is the maximum single repair length allowable as per API ? a) 150 mm b) 228 mm c) 300 mm d) 350 mm

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QUESTIONAIRES ON API 5L 44TH EDITION

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8. Before starting the SMAW, the electrode preheating temperature is? a) 350 º c b) 0 º c c) 410 º c d) 250 º c 9. What type of technique used in SMAW in our plant? a) Stringer b) Weaver c) Both stringer & weaver d) none 10. What is the length of electrode used in SMAW? a) 250 mm b) 550 mm c) 450 mm d) 150 mm 11. What is the important function of electrode coating? a) Arc stability b) Shielding the arc from the atmosphere c) Improves mechanical properties d) All the above 12. The intermittent cleaning of weld is due to, a) Achieve good weld shape b) Achieve good weld shining c) Avoid slag inclusion weld d) Good penetration 13. What is another name for SMAW? a) Manual metal arc welding b) Solid metal arc welding c) Flux core metal arc welding d) arc welding 14. What is the full form of WPS? a) Welding properties b) Welding procedure specification c) Welding procedure standard d) Welding properties specification 15. What is the name of the document to qualify the welder? a) Welding procedure specification b) Welder performance qualification c) Procedure qualification test

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QUESTIONAIRES ON API 5L 44TH EDITION

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d) none 16. What is the minimum repair depth as per API 5L? a) 1/3 rd of wall thickness b) 3.5 mm c) 2/3 rd of wall thickness d) 2.5 mm 17. What type of NDT method used in X ray repair station ? a) Ultrasonic testing b) Radiography testing c) Dye penetrant testing d) Magnetic particle testing 18. What type of arc striking used in our X ray repair station ? a) Hitting method b) Scratching method c) All the above d) none 19. What is the function of Dye penetrant test? a) To detect the surface defect b) To detect the sub surface defect c) To detect the internal defect d) All the above 20. What is the minimum length of repair as per API? a) 75.5 mm b) 50.8 mm c) 65.6 mm d) None 21. What is the full form of PQR? a) Procedure qualification report b) Properties qualification record c) Procedure qualification record d) Properties qualification report 22. In electrode designation E9018G, 1 denotes? a) Tensile strength b) Position c) Chemical composition d) Yield strength 23. What will be effect of current, when it increases? a) Penetration less b) Narrow bead c) Heat input more d) Under fill 24. What is the polarity used in X ray repair station in our plant?

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QUESTIONAIRES ON API 5L 44TH EDITION

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a) DCEN b) DCEP c) DCPE d) None 25. What is the advantage of DCEN polarity? a) For good deposition b) For narrow bead c) For deep penetration d) All the above 26. What is the power source used in SMAW in our plant? a) AC b) DC c) Power wave power source system d) All the above 27. What are all the important safety items required in SMAW? a) Shielding glass b) Nose mask c) Hand gloves d) All the above 28. What is the method used to prevent hydrogen cracking in SMAW? a) Gouging b) Preheating c) Grinding d) Cleaning 29. What standard we are following for acceptance criteria? a) API & customer specification b) ASME & customer specification c) BS d) Customer specification 30. What is the defect visually found in X ray repair station? a) Slag b) Under cut c) LOP d) LOF