General Question paper 1

1. A code gives the acceptance standard for excess weld metal ‘h’ as h<1mm +0, 1b, max.5mm; where ’b’ is the width of the weld cap. For which of the following situation is the excess weld metal acceptable?

A .b=15h=3.0B. b=20h=3.0C. b=28h=4.0D. b=40h=5.4

2. A fatigue fracture can be identified (from examination of the fracture faces ) by A. the presences of beach marks

B. the presences of plastics deformationC. being rough and torn D. being flat and rough

3. Ultraviolet and infrared radiation, produced during welding, may

A. make arc striking easier B. used for weld testing C. increase the welding speed D. cause skin burns

4. A typical temperature for stress relieving carbon manganese steel metal is A.580-620*c B. 5000-6200*c C. 75-80*c D. 1500-1800*c5. A typical temperature for normal carbon manganese steel A. approximately 200*c B. approximately 600*c C. approximately 900*c D. approximately 1200*6. The typically included angle used for MMA welding of a 15mm thick steel single ‘V’ butt joint is most likely to be A. 35* B. 120* C. 70* D.90*

7. Which of the following alloying elements is used to improve the toughness of steel? A. manganese B. sulphur C. carbon D. chromium

8. A steel designated as ‘Z’ quality will have

A. through –thickness ductility values >20% B. through –thickness ductility values <20% C. been specially heat treated D. zirconium added to improve weld ability

9. A transverse tensile test peace from a weld joint will give the

A. tensile strength of the weld B. tensile strength of the joint C. stress strain characteristics of the weld D. stress strain characteristics of the joint

10. Which NDT method is associated with burmah Castrol Strips?

A. radiographic testing B. helium leak testing C. magnetic particle testing D. ultrasonic testing

11. The penetrating power of an x-ray set is expressed in

A. curies B. KV C. IQI values D. the number after the isotopes type

12. The direction of shrinkage in a welded joint are

A. transverse and diagonal B. transverse, short transverse and conicalC. transverse, short transverse and longitudinal D. angular, diagonal and Trans granular

13. Sequence welding is referred to with reference to which of the following?

A. DistortionB .Residual stressC .Fatigue lifeD. Not associated with any of the above.

14. Standard Oxy-fuel gas cutting equipment can be applied to

a. Aluminum alloyb. Carbon steelc. Austenitic Stainless steeld. Copper

15. Weld ments in carbon manganese steel, made by low heat input welding may show

A. Greater ductilityB. Higher distortionC .Higher dilution D. Higher hardness

16. Using stabilized stainless steel will reduce the risk of

A. Excessive distortionB. Weld decayC .Formation of Iron – supplied D. Sour service cracking

17. In the MAG Welding process which gas type gives good penetration but an unstable arc and high level of spatters?

A. Pure carbon dioxideB .Pure ArgonC .Argon + 5% - 20% Carbon dioxideD. Argon + 1% - 2% Oxygen or Carbon dioxide

18. A MMA electrode which is classified as an E7024 (according to AWS) is

A. basic typeB. Cellulosic typeC .Rutile typeD. Thick coated IRON powder

19. Which type of submerged arc flux can be described as sharp?

A. Agglomerated B. Fused C. Basic D .Neutral

20. An electrode is classified to BS EN ISO 2560 as E35 3 B what does 35 Signifies?

A. 350 N/mm^2 yield strength B. 35 Joules at +30 degree C C. 35 N/mm^2 tensile strength D. 35 ksi tensile strength

21. A large diameter pipe which thickness of 10mm to be used for a cross country pipe line. Which electrode type could be used to combine high welding speed and deep penetration?

A. Basic coveredB. Cellulosic CoveredC. Rutile covered D .Iron powder loaded

22. Burn through may occur because

A. current is too highB. root gap is too highC. travel speed is too fastD. current is too low

23 .Which of the following imperfection type NOT is usually associated with TIG welding

A. Lack root fusionB. Tungsten inclusionC. Crater pipeD. Spatters

24.Which is the abbreviation for a welding procedure qualified that as being written for the procedure specification of qualifying welder procedure test weld?

A.WPSB.PWPSC.SWPSD.PWPT

25. Which polarity normally used for GTAW welding of Aluminum?A. ACB. DC Electrode –veC .DC Electrode +veD. It would make little difference which was used

26. When MIGMAG welding wire feed spec is proportional to

A. Travel speedB. Welding currentC .Arc lengthD. Inductance

27. Output characteristic of typical MAG set is

A. Constant VoltageB. Constant currentC. Dropping D. Raising

28. Which of the following is NOT a fusion welding process?

A. Friction weldB. Gas tungsten weldC. Resistance weldD. Laser welding

29. Which of the following standards is concerned with welder approval?A. BS EN ISO 2560B. BS EN 15614C. BS EN ISO 22553D. BS EN 287

30.A drawing with symbols to BS EN 22553 will show a 5mm leg fillet by which the following A.a5 B. t5 C. z5 D. 5z