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Graduate Aptitude Test in Engineering exam pattern of Mechanical Engineering (ME) As you want to get the Graduate Aptitude Test in Engineering exam pattern of Mechanical Engineering (ME) and the syllabus so here is the information of the same for you: GATE 2014 Exam Pattern: Candidates will be tested on their comprehension and application skills, recall as well as analytical abilities Candidates will have to answer Multiple Choice Questions and Numerical Questions. General Aptitude Questions are compulsory for all GATE 2014 exam papers GATE 2014 XE Paper will have a compulsory section in Engineering Mathematics and General Aptitude along with any two of XE sections B to G. GATE 2014 XL Paper Pattern will have a compulsory section inSection H in Chemistry and General Aptitude along with any two of XL sections I to M Syllabus of ME: ENGINEERING MATHEMATICS Linear Algebra: Matrix algebra, Systems of linear equations, Eigen values and eigen vectors. Calculus: Functions of single variable, Limit, continuity and differentiability, Mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems. Differential equations: First order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one dimensional heat and wave equations and Laplace equation. Complex variables: Analytic functions, Cauchy’s integral theorem, Taylor and Laurent series. Probability and Statistics: Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson,Normal and Binomial distributions. Numerical Methods: Numerical solutions of linear and non-linear algebraic equations Integration by trapezoidal and Simpson’s rule, single and multi-step methods for differential equations. APPLIED MECHANICS AND DESIGN Engineering Mechanics: Free body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations; impact. Strength of Materials: Stress and strain, stress-strain relationship and elastic constants, Mohr’s circle for plane stress and plane strain, thin cylinders; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular shafts; Euler’s theory of columns; strain energy methods; thermal stresses. Theory of Machines: Displacement, velocity and acceleration analysis of plane mechanisms; dynamic analysis of slider-crank mechanism; gear trains; flywheels. Vibrations: Free and forced vibration of single degree of freedom systems; effect of damping; vibration isolation; resonance, critical speeds of shafts. Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram;principles of the design of machine elements such as bolted, riveted and welded joints, shafts, spur gears, rolling and sliding contact bearings, brakes and clutches. FLUID MECHANICS AND THERMAL SCIENCES Fluid Mechanics: Fluid properties; fluid statics, manometry, buoyancy; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; viscous flow of incompressible fluids; boundary layer; elementary turbulent flow; flow through pipes, head losses in pipes, bends etc. Heat-Transfer: Modes of heat transfer; one dimensional heat conduction, resistance concept, electrical analogy, unsteady heat conduction, fins; dimensionless parameters in free and forced convective heat transfer, various correlations for heat transfer in flow over flat plates and through pipes; thermal boundary layer; effect of turbulence; radiative heat transfer, black and grey surfaces, shape factors, network analysis; heat exchanger performance, LMTD and NTU methods. Thermodynamics:Zeroth, First and Second laws of thermodynamics; thermodynamic system and processes; Carnot cycle.irreversibility and availability; behaviour of ideal and real gases, properties of pure substances, calculation of work and heat in ideal processes; analysis of thermodynamic cycles related to energy conversion. Applications:Power Engineering: Steam Tables, Rankine, Brayton cycles with regeneration and reheat. I.C. Engines: air-standard Otto, Diesel cycles. Refrigeration and air-conditioning: Vapour refrigeration cycle, heat pumps, gas refrigeration, Reverse Brayton cycle; moist air: psychrometric chart, basic psychrometric processes. Turbomachinery:Pelton-wheel, Francis and Kaplan turbines — impulse and reaction principles, velocity diagrams. MANUFACTURING AND INDUSTRIAL ENGINEERING Engineering Materials: Structure and properties of engineering materials, heat treatment, stress-strain diagrams for engineering materials. Metal Casting: Design of patterns, moulds and cores; solidification and cooling; riser and gating design, design considerations. Forming: Plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes; principles of powder metallurgy. Joining: Physics of welding, brazing and soldering; adhesive bonding; design considerations in welding. Machining and Machine Tool Operations: Mechanics of machining, single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, principles of design of jigs and fixtures Metrology and Inspection: Limits, fits and tolerances; linear and angular measurements; comparators; gauge design; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly. Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools. Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning. Inventory Control: Deterministic and probabilistic models; safety stock inventory control systems. Operations Research: Linear programming, simplex and duplex method, transportation, assignment, network flow models, simple queuing models, PERT and CPM. Here for your reference I am giving you the solved question papers of GATE Mechanical Engineering: Some content of the file has been given here: 1. Choose the most appropriate word from the options given below to complete the following sentence. Communication and interpersonal skills are_____ important in their own ways. (A) each (B) both (C) all (D) either Answer: (B) 2. Which of the options given below best completes the following sentence? She will feel much better if she ________________. (A) will get some rest (B) gets some rest (C) will be getting some rest (D) is getting some rest Answer: (B) 3. Choose the most appropriate pair of words from the options given below to complete the following sentence. She could not _____ the thought of _________ the election to her bitter rival. (A) bear, loosing (B) bare, loosing (C) bear, losing (D) bare, losing Answer: (C) 4. A regular die has six sides with numbers 1 to 6 marked on its sides. If a very large number of throws show the following frequencies of occurrence: 10.167; 20.167; 30.152; 4 0.166; 50.168; 6 0.180. We call this die (A) irregular (B) biased (C) Gaussian (D) insufficient Answer: (B) 5. Fill in the missing number in the series. 2 3 6 15 ___ 157.5 630 Answer: 45 Exp: 2nd number is in increa sin g order as shown above 1st number 2 3 6 15 45 157.5 630 1.5 2 2.5 3 3.5 4 Q. No. 6 – 10 Carry One Mark Each 6. Find the odd one in the following group Q,W,Z,B B,H,K,M W,C,G,J M,S,V,X (A) Q,W,Z,B (B) B,H,K,M (C) W,C,G,J (D) M,S,V,X Answer: (C) Exp: 7. Lights of four colors (red, blue, green, yellow) are hung on a ladder. On every step of the ladder there are two lights. If one of the lights is red, the other light on that step will always be blue. If one of the lights on a step is green, the other light on that step will always be yellow. Which of the following statements is not necessarily correct? (A) The number of red lights is equal to the number of blue lights (B) The number of green lights is equal to the number of yellow lights (C) The sum of the red and green lights is equal to the sum of the yellow and blue lights (D) The sum of the red and blue lights is equal to the sum of the green and yellow lights Answer: (D) 8. The sum of eight consecutive odd numbers is 656. The average of four consecutive even numbers is 87. What is the sum of the smallest odd number and second largest even number? Answer: 163 9. The total exports and revenues from the exports of a country are given in the two charts shown below. The pie chart for exports shows the quantity of each item exported as a percentage of the total quantity of exports. The pie chart for the revenues shows the percentage of the total revenue generated through export of each item. The total quantity of exports of all the items is 500 thousand tonnes and the total revenues are 250 crore rupees. Which item among the following has generated the maximum revenue per kg? a W Z B 6 3 2 17 23 26 2 B H K N 6 3 2 M S V X 6 3 2 W C G J (A) Item 2 (B) Item 3 (C) Item 6 (D) Item 5 Answer: (D) Exp: Item:2 Item:3 7 3 4 3 20 250 10 100 20 500 10 100 0.5 10 5 10 1 Item 2 7 3 23 250 10 19 500 10 1.2 Item3 Item: 6 Item:5 19 1.18 Item 6 16 20 5 1.6 1.6 Item 5 12 3 10. It takes 30 minutes to empty a half-full tank by draining it at a constant rate. It is decided to simultaneously pump water into the half-full tank while draining it. What is the rate at which water has to be pumped in so that it gets fully filled in 10 minutes? (A) 4 times the draining rate (B) 3 times the draining rate (C) 2.5 times the draining rate (D) 2 times the draining rate Answer: (A) Exp: half V 30(s) drawing rate s Total volume =60 S tank 1 1 1 (s )(10) (s)10 30s s (s) s 3s s1 4s s 4drawing rate Q. No. 1 – 25 Carry One Mark Each 1. One of the eigenvectors of the matrix 5 2 9 6 9 −_ _ _ 2 Answer: D 3. Curl of vector 2 2 2 2 3 ˆ ˆ ˆ F x z i 2xy zj 2y z k − _ is (A) 3 2 2 2 ˆ ˆ 4yz 2xy i 2x zj 2y zk −(B) 3 2 2 2 ˆ ˆ ˆ 4yz 2xy i 2x zj 2y zk − (C) 2 2 2 ˆ ˆ ˆ 2xz i 4xyzj 6y z k −(D) 2 2 2 ˆ ˆ ˆ 2xz i 4xyzj 6y z k Answer: A 4. A box contains 25 parts of which 10 are defective. Two parts are being drawn simultaneously in a random manner from the box. The probability of both the parts being 7 A 20 42 B 125 25 C 29 5 D 9 Answer: A 5. The best approximation of the minimum value attained by x e sin 100x for x 0 −is _______ Answer: 1.00 to – 0.94 6. A steel cube, with all faces free to deform, has Young’s modulus, E, Poisson’s ratio v, and coefficient of thermal expansion, . The pressure (hydrostatic stress) developed within the cube, when it is subjected to a uniform increase in temperature, T, is given by (A) 0 T E B 1 2 − T E C 1 2 − − T E D 3 1 2 − Answer: A 7. A two member truss ABC is shown in the figure. The force (in kN) transmitted in member AB is _______ A 1m B 10kN 0.5m Answer: 18 to 22 8. A 4-bar mechanism with all revolute pairs has link lengths lf = 20 mm, lin = 40 mm, lco = 50 mm and lout = 60 mm. The suffixes 'f', 'in', 'co' and 'out' denote the fixed link, the input link, the coupler and output link respectively. Which one of the following statements is true about the input and output links? (A) Both links can execute full circular motion (B) Both links cannot execute full circular motion (C) Only the output link cannot execute full circular motion (D) Only the input link cannot execute full circular motion Answer: A 9. In vibration isolation, which one of the following statements is NOT correct regarding Transmissibility (T)? (A) T is nearly unity at small excitation frequencies (B) T can be always reduced by using higher damping at any excitation frequency (C) T is unity at the frequency ratio of 2 (D) T is infinity at resonance for undamped systems Answer: B 10. In a structure subjected to fatigue loading, the minimum and maximum stresses developed in a cycle are 200 MPa and 400 MPa respectively. The value of stress amplitude (in MPa) is _______ Answer: 99 to 101 11. A thin plate of uniform thickness is subject to pressure as shown in the figure below Under the assumption of plane stress, which one of the following is correct? (A) Normal stress is zero in the z-direction (B) Normal stress is tensile in the z-direction (C) Normal stress is compressive in the z-direction (D) Normal stress varies in the z-direction Answer: A 12. For laminar forced convection over a flat plate, if the free stream velocity increases by a factor of 2, the average heat transfer coefficient (A) remains same (B) decreases by a factor of 2 (C) rises by a factor of 2 (D) rises by a factor of 4 Answer: C 13. The thermal efficiency of an air-standard Brayton cycle in terms of pressure ratio rp and Answer: D 14. For an incompressible flow field, v _ , which one of the following conditions must be satisfied? Answer: A 15. A pure substance at 8 MPa and 400 °C is having a specific internal energy of 2864 kJ/kg and a specific volume of 0.03432 3 m / kg . Its specific enthalpy (in kJ/kg) is _______ Answer: 3135 to 3140 16. In a heat exchanger, it is observed that 1 2 T T , where 1 T is the temperature difference between the two single phase fluid streams at one end and 2 T is the temperature difference at the other end. This heat exchanger is (A) a condenser (B) an evaporator (C) a counter flow heat exchanger (D) a parallel flow heat exchanger Answer: C 17. The difference in pressure (in N/m2) across an air bubble of diameter 0.001 m immersed in water (surface tension = 0.072 N/m) is _______ Answer: 287 to 289 18. If there are m sources and n destinations in a transportation matrix, the total number of basic variables in a basic feasible solution is (A) m + n (B) m + n + 1 (C) m + n - 1 (D) m Answer: C 19. A component can be produced by any of the four processes I, II, III and IV. The fixed cost and the variable cost for each of the processes are listed below. The most economical process for producing a batch of 100 pieces is Process Fixed cost(in Rs.) Variable cost per piece (in Rs.) I 20 3 II 50 1 III 40 2 IV 10 4 (A) I (B) II (C) III (D) IV Answer: B Exp: c Process Cost of production for 100 I F.c v 20 100 3 320 II 50 100 1 150 III 40 100 2 240 IV 10 100 4 410 Hence process (B) is most economical. 20. The flatness of a machine bed can be measured using (A) Vernier calipers (B) Auto collimator (C) Height gauge (D) Tool maker’s microscope Answer: B Exp: Flatness of machine bed can be measured from Auto collimator. 21. A robot arm PQ with end coordinates P(0,0) and Q(2,5) rotates counter clockwise about P in the XY plane by 90°. The new coordinate pair of the end point Q is (A) (-2,5) (B) (-5,2) (C) (-5, -2) (D) (2, -5) Answer: B 22. Match the Machine Tools (Group A) with the probable Operations (Group B): Group A Group B (p) Centre lathe (1) Slotting (q) Milling (2) Counter-boring (r) Grinding (3) Knurling (s) Drilling (4) Dressing (A) P-1, Q-2, R-4, S-3 (B) P-2, Q-1, R-4, S-3 (C) P-3, Q-1, R-4, S-2 (D) P-3, Q-4, R-2, S-1 Answer: C 23. The following four unconventional machining processes are available in a shop floor. The most appropriate one to drill a hole of square cross section of 6 mm × 6 mm and 25 mm deep (A) is abrasive Jet Machining (B) is Plasma Arc Machining (C) is Laser Beam Machining (D) is Electro Discharge Machining Answer: D For more detailed information I am uploading PDF files which are free to download: Last edited by Neelurk; February 14th, 2020 at 03:01 PM. |