Cswip Exam Question PDF [PDF]

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CSWIP 3.1

1) STRA Test is....? A) Prevent Lamellar Tearing B) Measure Ductility C) Measure hardness D) None of the above 2) In C-Mn Steel which welding process is not used....? A) MIG B) MMA C) SAW D) None of the above 3) Which Electrode is not used for PE position....? A) Basic B) Cellulose C) Rutile D) Iron Powder 4) You Notice that welder making pre heat above the level of WPS which one is affected..? A) It increases the grain size of the boundary & removes moisture B) It will give refined grain and remove hydrogen C) It will increase the toughness and removes hydrogen D) None of the above 5) Burn Through occurs when....? A) Large root Face B) High arc voltage c) Large root gap D) None of the above 6) Porosity caused by....? A) High Welding Current B) Damp Electrode C) Joint Design D) All the above 7) To prevent contamination in the TIG…..? A) Slope out Device B) Slope in Device C) Post flow of Device D) None of the above 8) WPS is….? A) The documents available to welding inspector, NDT personnel B) The document that contain relevant WPQR that is available to welding inspector, NDT personnel C) Both A & B D) None of the above

9) In NDT…? A) In RT, 680 dia, 20mm thickness, DWDI is used B) In RT, 70mm dia, 60mm Thickness, DWSI is used C) In RT, 85 mm dia, 25 mm thickness, DWDI is used D) A will be used by DWDI & DWSI 10) In RT ….? A) Radiography will show lack of fusion as dark straight line in one side and other side bright B) Radiography will show undercut as dark straight line in one side C) Radiography will show lack of root penetration in one side bright and other side dark D) None of the above 11) In contract, they said 20% RT and every one failure 2RT required and you would find one failure. What would you your action….? A) You agree and you will show substituent the joint B) You disagree and leave the Joint C) You will ask more % of RT for Quality Assurance D) None of the above 12) Tensile Test give….? A) Longitudinal weld metal shows reduction in area as 20% B) Transverse specimen show reduction in area as 25% C) It will be Show only Rm D) Both A & B 13) In MMA ….? A) DC-ve gives deeper penetration than DC+ve B) AC gives greater deposition than DC-ve C) DC-ve gives greater deposition than DC+ve D) None of the above 14) Lamellar Tearing detected by…? A) RT B) Ut C) Visual Inspection D) None of the above 15) According to BS EN, Consumables E50 3 B. In these 3 indicates ….? A) Toughness B) Yield Strength C) Chemical Composition D) None of the above 16) What would you consider while calibrating MIG Welding operation? A) Amps, Volts, Travel Speed, Gas rate Flow B) Amps, Volts, Travel Speed, Welding Consumable C) Amps, Volts, Travel Speed, CTOD D) None of the above 17) Oxy Fuel Cutting Chemical Reaction….? A) Exothermic Reaction B) Endothermic Reaction C) Convection Reaction D) None of the above

18) Which one is solid state welding…? A) Electro Slag B) Friction C) Resistance Welding D) None of the above 19) DPI …..? A) Variables of Contrast of paint B) Variables of Type of Developer C) Detect Sub Surface defect D) None of the above 20) Fillet Weld Fracture Surface is ….? A) Smooth and Curved Shaped B) Flat and Rough Face C) Crystalline Face D) None of the above 21) What is the major difference between code and standard? A) B) C) D)

Code is a Specific Product Code are Mandatory Standard is extracted from code None of the above

22) MMA, TIG and SAW...? A) B) C) D)

All use a Flat characteristics All use a Constant Voltage Characteristics All used a dropping characteristics MMA and Tig use a Dropping Characteristics and Saw always use Flat Characteristics.

23)During Production welding, is welder allowed to adjust the welding current? A) B) C) D)

Yes, he can adjust the current, If he is qualified No, except the welding supervisor approves No, current must not be adjusted None of the above

24)Tig Welding..? A) B) C) D)

Is not used in welding of 306L Used in AC and DC Current for all material Used only in DC+ve Not used for Austenitic Stainless steel

25) Pre heat requires....? A) B) C) D)

Knowledge of CEV, Hydrogen Scale and Material Thickness Only the material shape and residual stress Answer A is correct but more information needed Answer B is correct to determine preheat

26) Tensile Test determines....? A) B) C) D)

Toughness Hardness Re Only Rm and Re

27) The penetration power of X-ray is measured...? A) B) C) D)

Curies Kilo Volts Joules Electron Volts

28) According to BS EN 22553, which statement is true....? A) B) C) D)

Elementary Symbols placed on indication Line means weld on other side Elementary Symbols placed on reference Line means weld on arrow side Elementary Symbols placed on reference Line means weld on other side None of the Above.

29) Pre heat is carried out....? A) B) C) D)

After Welding Before Welding Before Welding and Before next pass None of the Above

30) Tack Welding...? A) B) C) D)

It is Important Length and Position depends on material thickness and size It always require preheat None of the Above.

31) You noticed an excess penetration in a C/Mn welded country pipe line, what could be the reason...? A) B) C) D)

Wrong Electrode Contaminated Electrode Excess Root Grinding Large Root Face

32) Which type of electrode is not best for Welding Cross country pipe line...? A) B) C) D)

Basic Rutile Cellulose Iron powder

33) What information does BS EN 1011 gives...? A) B) C) D)

Approval for WPS Approval for Welder Qualification Approval for Preheat Approval for Destructive Testing

34) Which of the following has the great effect of current during MIG/MAG welding..? A) B) C) D)

Arc Length Arc Voltage Flow rate WFS

35) Which of the following is true about MIG/MAG...? A) B) C) D)

WFS is Constant ARC length is Constant Current is Constant None of the above.

36) Flux Core...? A) B) C) D)

Basic type need Backing Do not need a backing during welding as Flux covers prevent Oxidation of root Need not be used with gas shielding None of the Above.

37) Solidification Cracking...? A) B) C) D)

Occurs 72 hours after welding Occurs Immediately after welding & some hours after welding Immediately after welding None of the Above.

38) Hydrogen Induced Cracking...? A) B) C) D)

Occurs in weld metal Also may be referred to as under bead crack Occurs as a result of weld Solidification None of the Above.

39) In plain Carbon Steel...? A) B) C) D)

Carbon reduce Strength Manganese determine Strength and hardness Carbon determines Strength and Hardness None of the Above.

40) Which alloying elements controls Corrosion resistant...? A) B) C) D)

Chromium Carbon Manganese Nickel

41) The holding Temperature of basic Electrode....? A) B) C) D)

250 Degree Celsius 350 Degree Celsius 150 Degree Celsius 70 Degree Celsius

42) A Material with Z Quality has...? A) B) C) D)

High Strength Hardness Toughness Good Through Ductility

43) Which of the following Codes is used for Welder Qualification...? A) B) C) D)

ASME Section V ASME Section II ASME Section IX ASME Section VIII

44) Tensile Testing can determine...? A) B) C) D)

Notch Toughness Hardness %E %E and %Z

45) Fatigue Fracture, the surface appearance are...? A) B) C) D)

Contain some stress ripples Show plastic deforms and rough expansion Rough and Torn Flat Surface

46) A Fillet Weld has a design throat thickness of 6mm, what is the leg length Size....? A) B) C) D)

8.4 mm 5 mm 8.5 mm More information needed

47) What type of standard formed in a metal with low heat input during welding....? A) B) C) D)

Austenite Pearlite Bainite Martensite

48) What is the heat input for MMA Welding of C-Mn with given variables 22V/250A, 250mm/min? A) B) C) D)

1.056 KJ/cm 1.056 KJ/mm 1.56 J/mm 1.56 J/cm

49) A Stabilizer is used in Stainless Steel....? A) B) C) D)

Increase carbon Content in grain boundary Increase Chromium Carbide in grain boundary Reduce Chromium Carbide in grain boundary Reduce Carbon Contant in grain boundary

50) Which of the following statement for hydrogen control are true....? A) B) C) D)

MMA basic electrode will introduce more hydrogen than Agglomerated basic flux TIG welding will introduce more hydrogen than Agglomerated Acid flux MAG solid wire will introduce less hydrogen than fused basic flux None of the Above.

51) Proof Stress is....? A) B) C) D)

Stress acting only in pipe Used in measuring UTS of Aluminium A system used in determine Re during some tensile testing None of the above

52) In TIG welding....? A) B) C) D)

Up slope is used to prevent weld metal contamination Down slope is used to prevent weld metal contamination Post flow is used to prevent weld metal contamination None of the Above

53) Pre heat is....? A) B) C) D)

Used to increase Y.S and reduce hydrogen Used to increase Ductility and reduce Hydrogen Used to reduce % stress and reduce Hydrogen Used to increase toughness and reduce Hydrogen

54) Solidification Crack.....? A) B) C) D)

Occurs Longitudinally on weld metal Transverse on parent material HAZ Toe of the weld

55) The weld symbol of

A)

B)

B)

D)

56) In a SAW welding process, which could be reason for centre line crack....? A) B) C) D)

Deep and Narrow weld Large amount of hydrogen Lamination present in parent material Poor start and stop

57) Hydrogen Induced Cold Cracking occurs 48-72 Hr after welding, what could be the reason...? A) B) C) D)

Hydrogen diffusion and molecules formation take time Time taken for weld metal to become hard Time taken for weld metal to become martensite Time taken for weld metal to become solidifies

58) Which NDT method is associated with IQI..? A) B) C) D)

RT PT UR MT

59) Which of the following is a limitation of RT....? A) B) C) D)

Penetration limitation, especially between source and material Limitation between UG Cannot be used in stainless steel None of the above

60) An open corner joint is an example of...? A) B) C) D)

Butt weld Fillet Weld Seam weld Spot weld

61) Which of the following is fusion welding process...? A) B) C) D)

Resistance welding Explosive Welding Braze welding Friction Welding

62) Which of the following welding process is described as Solid state Welding...? A) B) C) D)

Friction Welding Electro Slag Welding Resistant welding None of the Above