GATE Placement Paper Chemical Engineering 44019

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GATE-Placement-Paper-Chemical-Engineering-44019

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GATE Chemical-Engineering 2013 solved questions

Updated Date : Dec 4, 2013

Category : Chemical-Engineering GATE

GATE Chemical-Engineering placement paper Question and answers GATE recruitment process and aptitude test experiences

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GATE Exam - Chemical Engineering solved questions for learn and practice GATE previous years solved question papers of CS, mechanical, Civil, Chemical. Electrical, electronics etc GATE 2013 Graduate Aptitude Test in Engineering.Chemical engineering solved question papers 1 An open tank contains two immiscible liquids of densities (800 kg/m3 and 1000 kg/m3) as shown in the figure. If g = 10 m/s2, under static conditions, the gauge pressure at the bottom of the tank in Pa is __________

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2 An incompressible Newtonian fluid, filed in an annular gap between two concentric cylinders of radii R1 and R2 as shown in the figure, is flowing under steady state conditions. The outer cylinder is rotating with an angular velocity of Ω while the inner cylinder is stationary. Given that (R2 – R1) << R1, the profile of the θ-component of the velocity Vθ can be approximated by,

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4 Velocity ;of an object fired directly in upward direction is given by V = 80 – 32 t, where t (time) is in seconds. When will the velocity be between 32 m/sec and 64 m/sec? (A) (1, 3/2) (B) (1/2, 1) (C) (1/2, 3/2) -Answer (D) (1, 3) 5

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placement.freshersworld.com/placement-papers/GATE/Placement-Paper-Chemical-Engineering-44019

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2011.

Country USA England Germany Italy Japan Australia

Number of Tourists 2000 3500 1200 1100 2400 2300

France

1000

Which two countries contributed to the one third of the total number of tourists who visited India in 2011 ? (A) USA and Japan (B) USA and Australia (C) England and France-Answer (D) Japan and Australia 6 In a factory, two machines M1 and M2 manufacture 60% and 40% of the auto components respectively. Out of the total production, 2% of M1 and 3% of M2 are found to be defective. If a randomly drawn auto component from the combined lot is found defective, what is the probability that it was manufactured by M2? (A) 0.35 (B) 0.45 (C) 0.5 -Answer (D) 0.4

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7 If |- 2X + 9 | = 3 then the possible value of |- X | X2 would be (A) 30 (B) -30-Answer (C) -42 (D) 42

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(A) All scientists are researchers (B) All professors are scientists (C) Some researchers are scientists-Answer D) No conclusion follows.

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Model questions paper of GATE sample placement papers questions with answers and detailed explanations. GATE Chemical engineering Classified Multiple choice Questions Selected from Examination Papers of various Engineering Colleges Examinations

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1. Nitrogen compounds are not used in the manufacture of (a) fertilisers (b) gun powder (c) tip of match sticks (Ans) (d) explosive 2. The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the ........ in the solution. (a) power of hydrogen ion concentration (Ans) (b) percentage of hydrogen ions (c) presence of hydrogen ions (d) none of these 3. (a) (b) (c) (d)

Electrode potential is not concerned with the measurement of pH value temperature (Ans) viscosity density

4. (a) (b) (c) (d)

A material lacking in toughness is usually termed as plastic malleable brittle ductile (Ans) ductile

5. (a) (b) (c) (d)

Otto cycle used in spark ignition petrol engines is also known as the constant....... cycle. volume (Ans) pressure heat none of these


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6. Pick out the wrong statement. (a) In a thin spherical shell under internal pressure, hoop stress is equal to the half of axial stress. (Ans) (b) Thermoplastic material does not follow Hooke's law of elasticity. (c) Components under longitudinal compression is called 'struts' and the load under which strut fails is called crippling or buckling load. (d) At low temperatures (sub-zero) in pressure vessels, the ductility of metal diminishes and brittle fracture occurs while at high temperature in pressure vessels, embitterment of material may take place. 7. (a) (b) (c) (d)

X-rays are positively charged. negatively charged. neutral. (Ans) of higher wavelength than visible light.

8. (a) (b) (c) (d)

............. cycle is the most efficient thermodynamic cycle. Diesel Otto Rankine Carnot (Ans)

9. (a) (b) (c) (d)

What is the pH of distilled water? 0 1 7 (Ans) 14

10. The hydraulic radius of a circular pipe of diameter 'd' flowing full is (a) d/4 (Ans) (b) d/2 (c) 2d/3 (d) d/3 11. ........... number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical. (a) Mach (b) Reynolds (c) Froude (Ans) (d) Weber 12. The factor of safety for brittle materials (having elongation <5%) is based on the ----stress. (a) yield (b) proof (c) ultimate (Ans) (d) none of these 13. Which of the following is the terminology used for the temperature at which the phase changes occur in a metal ? (a) Critical temperature. (Ans) (b) Recrystallisation temperature. (c) Phase transformation temperature. (d) Transition temperature. 14. ...... has the highest melting point out of the following. (a) Tungsten (Ans) (b) Zirconium (c) Molybdenum (d) Tantalum 15. Gantt charts are used for streamlining the (a) inventory control (b) production schedule (Ans) (c) sales forecasting (d) quality control 16. Plasma is (a) (b) (c) (d)

a high temperature nothing but ionised a source of steady formed at very low

neutral gas. gas. (Ans) and highest controllable pressure. temperature.

17. In a fuel cell, chemical energy is converted into (a) electrical energy directly. (Ans) (b) mechanical energy. (c) electrical energy and stored therein. (d) none of these. 18. While the bin cards are used in the effective stores management, the queing theory is associated with the ..... time. (a) waiting (Ans) (b) idle


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(c) inspection (d) tool replacement 19. Minimum diameter of the tube used for making water manometer should be ....... mm to avoid a correction for the effect of capillarity. (a) 1 (b) 2.5 (c) 4 (d) 6 (Ans) 20. Cobalt - 60 is used as a source of ...... in medical therapy & industrial radiography. (a) X-rays (b) g-rays (Ans) (c) a-rays (d) β-rays 21. An example of unsteady non uniform flow is the flow of liquid under pressure through a (a) tapering pipe at constant flow rate. (b) tapering pipe at either decreasing or increasing flow rate. (Ans) (c) long pipeline of constant diameter. (d) none of these. 22. Which of the following is not an explosive ? (a) TNT (b) CMC (Ans) (c) RDX (d) Lead azide 23. The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as (a) rigid (b) tough (c) ductile (Ans) (d) plastic 24. Permanent set in a material is produced by subjecting it to (a) triaxial loading. (b) fatigue loading. (c) stresses beyond the elastic limit. (Ans) (d) tensile & compressive loads simultaneously. 25. ............. wire is never used for making the heating element. (a) Nichrome (b) Kanthal (c) Invar (Ans) (d) None of these 26. Milligram of KOH required to saponify 1 gm of oil is called its ..... number. (a) saponification (Ans) (b) acid (c) precipitation (d) emulsion 27. Ester is formed, when an alcohol reacts with (a) carboxylic acid (Ans) (b) aldehyde (c) ketone (d) ether 28. Adhesives (a) can't be used in the form of pressure sensitive tapes. (b) can't join two dissimilar metals. (c) cure instantaneously after application on a surface. (d) none of these. (Ans) 29. The process of removal of scale formed during hot rolling of steel is termed as (a) descaling (b) short blasting (c) pickling (Ans) (d) skimming 30. Out of the following, the joint produced by ............ has the lowest strength. (a) soldering (Ans) (b) welding (c) brazing (d) rivetting 31. With increase in carbon percentage in steel, its (a) yield (b) elongation percent increases. (c) tensile strength increases. (Ans) (d) impact strength increases. 32. The tensile strength of plastics ranges from .......... kg/mm2. (a) 10 to 50


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(b) 50 to 100 (c) 0.01 to 0.1 (d) 0.1 to 10 (Ans) 33. Which of the following is a synthetic abrasive ? (a) Corundum (b) Emery (c) Pumice (d) Silicon carbide (Ans) 34. A good abrasive (a) should be friable. (Ans) (b) should have low refractoriness. (c) is made up of large size of crystals. (d) should be soft. 35. Thermoplastics are never moulded using (a) injection moulding (b) blow moulding (c) extrusion (d) compression moulding (Ans) 36. Which of the following is not a ferromagnetic material ? (a) Nickel (b) Cobalt (c) Aluminium (Ans) (d) Iron 37. Common salt is produced from sea water in India generally by the ........... method. (a) freeze drying (b) solar evaporation (Ans) (c) electrolytic (d) none of these 38. Young's modulus of a material is the measure of its (a) stiffness (Ans) (b) malleability (c) creep resistance (d) tensile strength 39. ..... test is the appropriate test to determine whether a material is ductile or brittle. (a) Impact (Ans) (b) Cupping (c) Hardness (d) Tensile 40. Which of the following is not an ore of iron ? (a) Chalcopyrite (Ans) (b) Magnetite (c) Hemetite (d) Limonite 41. Pig iron is (a) made from cast iron. (b) made from wrought iron. (c) the one, which comes out of the blast furnace. (d) free from impurities. 42. Annealing of cast iron (a) softens it to facilitate machining. (b) decreases the free carbon. (c) increase the strength. (d) none of these

(Ans)

(Ans)

43. L.D. (Linz-Donawitz) converter is used in the production of (a) copper (b) steel (Ans) (c) zinc (d) aluminium 44. ........ property of a material is determined by the Herbert Pendulum device. (a) Hardness (Ans) (b) Tensile (c) Toughness (d) Compressive 45. Galena is an ore of (a) iron (b) copper (c) lead (Ans) (d) aluminium 46. Chalcopyrite is an ore of (a) lead (b) aluminium


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(c) copper (d) zinc

(Ans)

47. Aluminium is extracted from (a) chalcocite (b) bauxite (Ans) (c) galena (d) none of these 48. Oxygen content below .... percent in air contaminated with nitrogen does not support combustion and is unsafe for human exposure. (a) 18 (b) 16 (Ans) (c) 14 (d) 12 49. Area under the stress-strain curve upto the resilience. (a) yield strength (b) elastic limit (c) proportional limit (Ans) (d) maximum point

.... is referred to as the modulus of

50. The passage between the nozzle and the .......... is called 'sprue' in case of injection moulding. (a) runner (Ans) (b) cylinder (c) mold (d) none of these Found the similar paper in recruitment ? : Yes No You might also be interested in :GATE Placement Papers , Chemical-Engineering , Placement Papers By Company

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GATE Placement Paper Chemical Engineering 44019

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