GATE PI 2005 | GATE PI Year Wise Previous Years Questions

GATE PI

1. A cast steel slab of dimension $$30 \times 20 \times 5\,\,cm$$ is poured horizontally using a side riser. The riser is c 2. An expandable pattern is used in 3. The shape factor for a casting in the form of an annular cylinder of outside diameter $$30$$ $$cm,$$ inside diameter $$2 4. Which one of the following is Not associated with vector calculus? 5. Two dice are thrown simultaneously. The probability that the sum of numbers on both exceeds $$8$$ is 6. The life of a bulb (in hours) is a random variable with an exponential distribution $$\,\,f\left( t \right) = \alpha {e^ 7. The differential equation $${\left[ {1 + {{\left( {{{d\,y} \over {d\,x}}} \right)}^2}} \right]^3} = {C^2}{\left[ {{{{d^2 8. The function $$$w = u + iv = {1 \over 2}\log \left( {{x^2} + {y^2}} \right) + i{\tan ^{ - 1}}\left( {{y \over x}} \right 9. For solving algebraic and transcendental equation which one of the following is used? 10. The real root of the equation $$x{e^x} = 2$$ is evaluated using Newton $$-$$ Raphson's method. If the first approximati 11. Newton $$-$$ Raphson formula to find the roots of an equation $$f(x)=0$$ is given by 12. The eigen values of the matrix $$M$$ given are $$15, 3, $$ and $$0.$$ $$M = \left[ {\matrix{ 8 & { - 6} & 2 13. A well machined steel plate of thickness $$L$$ is kept such that the wall temperature are $${T_h}$$ and $${T_c}$$ as sho 14. In a fabrication shop, a $$T$$-joint is to be made between two plates using a chain intermittent, double fillet weld of 15. Two $$8$$ $$mm$$ thick steel plates are placed $$5$$ $$mm$$ apart and welded by a butt joint. Welding is carried out at 16. Match List - I (welding problems) with List - II (Causes) and select the correct answer using the codes given below the 17. Consider the following statements: The size of the heat affected zone (HAZ) will increase with $$1.$$ increased starti 18. Consider the following statements : The magnitude of residual stresses in welding depends upon $$1.$$ Metal melted / de 19. The following data relate to an orthogonal turning process: $$\,\,\,\,\,\,\,\,\,\,\,$$Back rake angle $$=15deg,$$ $$\, 20. The effects of setting a boring tool above center height leads to a/an. 21. If each abrasive grain is viewed as a cutting tool, then which of the following represents the cutting parameters in com 22. In a machining operation chip thickness ratio is $$0.3$$ and the back rake angle of the tool is $${10^ \circ }.$$ What i 23. Consider the following statements During the third stage of tool-wear, rapid deterioration of tool edge takes place bec 24. The rake angle of a cutting tool is $${15^ \circ }$$, shear angle $${45^ \circ }$$ and cutting velocity $$35$$ $$m/min$$ 25. Match List - $${\rm I}$$ with List - $${\rm I}$$$${\rm I}$$ and select the correct answer using the codes given below: 26. Consider the following statements $$1.$$ $$\,\,\,\,\,\,\,\,\,\,\,\,$$ As the cutting speed increases, the cost of produc 27. Match List - $${\rm I}$$ (Cutting tool materials) with List - $${\rm I}$$$${\rm I}$$ (Manufacturing methods) and select 28. A batch of $$500$$ jobs of diameter $$50$$ $$mm$$ and length $$100$$ $$mm$$ is to be turned at $$200$$ $$rev/min$$ and f 29. A batch of $$500$$ jobs of diameter $$50$$ $$mm$$ and length $$100$$ $$mm$$ is to be turned at $$200$$ $$rev/min$$ and f 30. A $$\phi $$ $$40$$ $$mm$$ job is subjected to orthogonal turning by a $$ + {10^ \circ }$$ rake angle tool at $$500$$ $$r 31. A $$\phi $$ $$40$$ $$mm$$ job is subjected to orthogonal turning by a $$ + {10^ \circ }$$ rake angle tool at $$500$$ $$r 32. The following data relate to an orthogonal turning process: $$\,\,\,\,\,\,\,\,\,\,\,$$Back rake angle $$=15deg,$$ $$\, 33. Tool life in the case of a grinding wheel is the time 34. In a shaper machine, the mechanism for tool feed is 35. One brand of milling machine has the following two index plates supplied along with the indexing head: Plate 1: $$15, 1 36. Match List - $${\rm I}$$ (Milling problem) with List - $${\rm I}$$$${\rm I}$$ (Probable causes) and select the correct a 37. Match List - $${\rm I}$$ (Cutting tools) with List - $${\rm I}$$$${\rm I}$$ (Features) and select the correct answer usi 38. $$NC$$ contouring is an example of 39. Consider the following characteristics: $$1.$$ Single machine tool. $$2.$$ Manual materials handling system $$3.$$ Comp 40. A $$\phi \,\,25$$ $$mm$$ hole is pierced in a $$t=2.5mm$$ thick steel sheet having shear strength $$\tau = 350\,\,MPa.$ 41. Flash and gutter are provided in drop forging dies at the following stage: 42. Cold shut (lap) may occur in products obtained by: 43. A level having $${90^0}$$ bend is to be produced by drop forging using mild steel bar as raw material. The various opera 44. A round billet made of brass is to be extruded (extrusion constant $$=250$$ $$MPa$$ ) at $${700^ \circ }C.$$ The billet 45. The true stress-true strain curve is given by $$\sigma = 1400\,{\varepsilon ^{0.33}},$$ where the stress $$\sigma $$ is 46. Assertion (A) : Cold working of metals result in increase of strength and hardness. Reason (R) : Cold working reduces t 47. Consider the following statements: In comparison to hot working, in cold working, $$1.$$ Higher forces are required $$2 48. Ring gage is used to measure 49. A cylindrical pin of diameter $${1.996^{\matrix{ { + 0.0015} \cr { - 0.0015} \cr } }}\,\,mm$$ is assembled i

GATE PI 2005

MCQ (Single Correct Answer)

-0.6

A cylindrical pin of diameter $${1.996^{\matrix{ { + 0.0015} \cr { - 0.0015} \cr } }}\,\,mm$$ is assembled into a hole of diameter $${2.000^{\matrix{ { + 0.0015} \cr { - 0.0015} \cr } }}\,\,mm.$$ The allowance (in $$mm$$) provided for this assembly is

$$0.001$$

$$0.015$$

$$0.025$$

$$0.035$$

Paper analysis

Total Questions

Casting

Engineering Mathematics

Heat Transfer

Joining of Materials

Machine Tools and Machining

Metal Forming

Metrology

GATE PI Papers

2017