ESAB Interview Questions Model for Freshers Technician Aptitude

ESAB Interview Questions

SECTION I: Aptitude 45 questions 30 mins


  1. A & B will fill the tank in 20 and 25 min if both are opened but B is shutdown before 5 min how much time it will take to fill the tank.
  2. 1 27 125 ? 729 1331
  3. 1 3 4 8 15 27 ?
  4. 2 5 11 23 47 ?
  5. 289 means read from paper, 276 means tea from field, 35 means wall paper then tea is ? choice: 2, 6, 2or6, 2or7, 7or6
  6. P has two earring costing rupees 5000 plus a golden chain, R has diamond ring and a gold bangle, R and S get wrist watches from Q. Wrist watch cost Rs 7000 Q get a gold chain rs 20,000 from P,R gets a camera Rs15000 from S, diamond ring cost Rs 10000, gold bangle Rs 7000 at the beginning Q had three wrist watches and S had two cameras both costing RS 50000, P gives a earring to R, R gives diamond ring to P. R gives gold bangles to S.
  7. . What is the cost of the item R had initially
  8. who had the costliest item at the beginning.
  9. After exchange who has the item that totally cost Rs15000
  10. who made profit after exchange.
  11. Q receives from ? choice: P, Q , R, S, none
  12. A beats B by 35 metre or 7 sec in a 200 m race . A s time in covering the distance is ? choice: 40 47 33 44
  13. P is the north west of Q at a distance of 20 km Q is at a distance of 14 km to the south east of R. S is the south east of P at 38 km , T is the north west or south east of P, RT= ST
  14. PT is ? choice: 22 19 2 16
  15. V is either to the north west or south east of Q such that RV=3QV then VS is? Choice: 23 37 65 15
  16. What is the number should be added to 11158 such that the result can be divided by 77? Choice: 9 8 7 5
  17. DIUGNAL is the code for LANGUID then the code for ELKCAHS ?
  18. A is double the age of B in ten years back. B will be 40 yrs age after 10 years. What is the age of A now?

SECTION II: Technical 65 questions 45 mins


  1. The value of critical pressure for an van der vaal’s gas is a)p=8a/27br b) p=3b c)p=8ab/27(a-b) d)p=a/27b
  2. steady throttling? Choice: const entropy cont pr const volume cont temp cont enthalpy
  3. for same compression ratio petrol is more efficient
  4. centrifugal casting impurities collect? Outside the surface, inside the surface, throughtout the surface, somewhere.
  5. differential pressure in venture meter ? diff of velocity square of diff of velocity square root diff of velocity inverse of velocity inverse of sq root of vel
  6. The area under stress strain curve is a measure of ?
  7. The terminal of a D.C shunt motor is reversed what will happen?
  8. compression ration of a petrol engine?
  9. Eutectoid steel composition?
  10. Structure of boron trifloride molecule ?
  11. Series combination of resistor and capacitor put in a thyristor to protect from ?
  12. Difference between planar and shaper ?
  13. what is the purpose of wire wound resistance instead of carbon resistance?
  14. factor which affect drift in a D.C amplifier?
  15. Entropy is a measure of ?
  16. channel capacity of noiseless channel is ?
  17. Delta modulation , slope over load curve, what mode signal change?
  18. The band width required of transmission 4khz signal is ?
  19. gate terminal in thyristor is provided for ?
  20. In Al-Si alloy modification is achieved by a small addition amount of?
  21. low ductile brittle transistion temp is shown by? Struc steel tool steel tungsten steel hardened steel
  22. The first step in process planning is?
  23. MTM system is useful for ?
  24. X and R charts are used to control ?
  25. in designing the flip flop circuit the value of HFE for the selected transistor is takes min so as? 5 choices
  26. What is the ideal CO / CO2 ratio on the stoke line of a blast furnace?
  27. To prevent switching transience when interrupting dc current in inductance?
  28. Moment of inertia of a solid round shaft is ?
  29. Principle stress for biaxial loading will be max at ?
  30. For starting medium or high heat centrifugal pump keep the ? 5 choices
  31. Deleterious effect of sulphur in steel can be minimized by the addition of ?
  32. max tonnage of output of steel in the world is made by which process?
  33. large discrepancy between the theoretical and observed shear strength of metal should be explained by the presence of ?
  34. the representation of the plane of hexagonal metal?
  35. low carbon steel used in forming automobile bodies sometime develops roughened surface these are due to?
  36. Tin Sweat which recurs in cu tin alloy is and example of ?
  37. Efficiency of a transformer is max when ?
  38. If shear stress in nut is half the tensile stress in a bolt then nut length should be equal to?
  39. The teeth on a spur wheel are 5cm height and the greatest load acting on the point of the teeth is 300kg what is the maximum bending moment. The teeth has to bear ?
  40. The major chemical difference between pneumatic , Bessemer, and Thomas process lies in the chemical reaction involving the removal of?
  41. Banking is Blast furnace operational then Palance is?
  42. The major advantage of basic oxy process of steel making is?
  43. The resistivity of mercury is zero when it is cooled below 4.2K, the phenomenon is called ?
  44. desulphurization of iron in the blast furnace can be affected by lowering the Hearth temperature and lowering the slag volume is it true?
  45. when star delta starter is used to start a three phase induction motor starting torque?
  46. to have standard frequency supply from an induction generator it should be ?
  47. the bending moment of a shaft supported in a bearing ?
  48. soft magnetic material is a material hatching ?
  49. the hardenability of steel is reduced by ?
  50. German silver is and alloy of?
  51. Problem in bearing
  52. A digital single bit comparator of two variables is ?
  53. the ratio of Cp/Cv in adiabatic expansion or compression is ?
  54. Type of nozzle used in pelton wheel ?
  55. what is the purpose of Decoupling capacitors are used on most digital circuit boards ?
  56. velocity of water jet coming out of tank is ?

Interview questions:


  1. Why do you choose sales and marketing section
  2. diff between shaping and milling
  3. how to find heat transfer rate In IC engine
  4. application of differential calculation
  5. heat transfer co efficient in mild steel
  6. parameter for designing a gear
  7. third law of thermodynamics
  8. gear ratio formula
  9. three years from now where will you see yourself
  10. what is marketing
  11. what are the skills required for marketing
  12. for same compression ration which engine has better efficiency
  13. draw the pv diagram for the above question
  14. newtons law of cooling
  15. statistical values like density of materials, heat transfer co efficient.



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