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 GATE 2013 :Production And Industrial Engineering

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2013 Question Booklet Code A PI : PRODUCTION AND INDUSTRIAL ENGINEERING Duration: Three Hours Maximum Marks: 100 Read the following instructions carefully. 1. Do not open the seal of the Question Booklet until you are asked to do so by the invigilator. 2. Take out the Optical Response Sheet (ORS) from this Question Booklet without breaking the seal and read the instructions printed on the ORS carefully. If you find that either a. The Question Booklet Code printed at the right hand top corner of this page does not match with the Question Booklet Code at the right hand top corner of the ORS or b. The Question Paper Code preceding the Registration number on the ORS is not PI, then exchange the booklet immediately with a new sealed Question Booklet. 3. On the right hand side of the ORS, using ONLY a black ink ballpoint pen, (i) darken the appropriate bubble under each digit of your registration number and (ii) write your registration number, your name and name of the examination centre and put your signature at the specified location. 4. This Question Booklet contains 16 pages including blank pages for rough work. After you are permitted to open the seal, check all pages and report discrepancies, if any, to the invigilator. 5. There are a total of 65 questions carrying 100 marks. All these questions are of objective type. Each question has only one correct answer. Questions must be answered on the left hand side of the ORS by darkening the appropriate bubble (marked A, B, C, D) using ONLY a black ink ballpoint pen against the question number. For each question darken the bubble of the correct answer. More than one answer bubbled against a question will be treated as an incorrect response. 6. Since bubbles darkened by the black ink ballpoint pen cannot be erased, candidates should darken the bubbles in the ORS very carefully. 7. Questions Q.1 – Q.25 carry 1 mark each. Questions Q.26 – Q.55 carry 2 marks each. The 2 marks questions include two pairs of common data questions and two pairs of linked answer questions. The answer to the second question of the linked answer questions depends on the answer to the first question of the pair. If the first question in the linked pair is wrongly answered or is not attempted, then the answer to the second question in the pair will not be evaluated. 8. Questions Q.56 – Q.65 belong to General Aptitude (GA) section and carry a total of 15 marks. Questions Q.56 – Q.60 carry 1 mark each, and questions Q.61 – Q.65 carry 2 marks each. 9. Questions not attempted will result in zero mark and wrong answers will result in NEGATIVE marks. For all 1 mark questions, mark will be deducted for each wrong answer. For all 2 marks mark will be deducted for each wrong answer. However, in the case of the linked questions, answer question pair, there will be negative marks only for wrong answer to the first question and no negative marks for wrong answer to the second question. 10. Calculator is allowed whereas charts, graph sheets or tables are NOT allowed in the examination hall. 11. Rough work can be done on the Question Booklet itself. Blank pages are provided at the end of the Question Booklet for rough work. 12. Before the start of the examination, write your name and registration number in the space provided below using a black ink ballpoint pen. Name Registration Number PI-A PI 1/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Q.1 to Q.25 carry one mark each. Q.1 The fixed cost and the variable cost of production of a product are Rs. 20000 and Rs. 50 per unit, respectively. The demand for the item is 500 units. To break even, the unit price of the items in Rs. should be (A) 50 Q.2 (B) 75 (C) 90 (D) 100 Therbligs refer to the (A) basic types of fixtures used in machining. (B) fundamental motions used in manual work. (C) basic types of waste in manufacturing process. (D) fundamental types of material handling systems. Q.3 Customers arrive at a ticket counter at a rate of 50 per hr and tickets are issued in the order of their arrival. The average time taken for issuing a ticket is 1 min. Assuming that customer arrivals form a Poisson process and service times are exponentially distributed, the average waiting time in queue in min is (A) 3 Q.4 (B) 4 (B) 3.29 (B) 1.000 (A) P-4, Q-3, R-1, S-2 (C) P-2, Q-3, R-4, S-1 (C) 1.154 (D) 2.000 Characteristics / Applications 1. Non-consumable electrode 2. Joining of thick plates 3. Consumable electrode wire 4. Joining of cylindrical dissimilar materials (B) P-4, Q-2, R-3, S-1 (D) P-2, Q-4, R-1, S-3 In a rolling process, the state of stress of the material undergoing deformation is (A) pure compression (C) compression and shear Q.8 (D) 6.33 Match the CORRECT pairs. Processes P. Friction Welding Q. Gas Metal Arc Welding R. Tungsten Inert Gas Welding S. Electroslag Welding Q.7 (C) 5.03 A metric thread of pitch 2 mm and thread angle 60° is inspected for its pitch diameter using 3-wire method. The diameter of the best size wire in mm is (A) 0.866 Q.6 (D) 6 Circular blanks of 10 mm diameter are punched from an aluminum sheet of 2 mm thickness. The shear strength of aluminum is 80 MPa. The minimum punching force required in kN is (A) 2.57 Q.5 (C) 5 (B) pure shear (D) tension and shear Consider one-dimensional steady state heat conduction along x-axis (0 x L), through a plane wall; with the boundary surfaces (x=0 and x=L) maintained at temperatures of 0°C and 100°C. Heat is generated uniformly throughout the wall. Choose the CORRECT statement. (A) The direction of heat transfer will be from the surface at 100°C to the surface at 0°C. (B) The maximum temperature inside the wall must be greater than 100°C. (C) The temperature distribution is linear within the wall. (D) The temperature distribution is symmetric about the mid-plane of the wall. PI- A 2/16

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2013 Q.9 PRODUCTION & INDUSTRIAL ENGG - PI A cylinder contains 5 m3 of an ideal gas at a pressure of 1 bar. This gas is compressed in a reversible isothermal process till its pressure increases to 5 bar. The work in kJ required for this process is (A) 804.7 Q.10 (B) 953.2 (B) QR (C) RS (B) cos x , sin x and tan x (D) cos 2x , sin x and cos x The eigenvalues of a symmetric matrix are all (A) (B) (C) (D) Q.14 complex with non-zero positive imaginary part complex with non-zero negative imaginary part real pure imaginary The partial differential equation ∂u ∂ 2 u ∂u is a = +u ∂x ∂x 2 ∂t (A) linear equation of order 2 (C) linear equation of order 1 Q.15 (B) greater than zero and less than 0.5 (D) 1.0 Choose the CORRECT set of functions, which are linearly dependent. (A) sin x , sin2 x and cos2 x (C) cos 2x , sin2 x and cos2 x Q.13 (B) non-linear equation of order 1 (D) non-linear equation of order 2 Match the CORRECT pairs. Numerical Integration Scheme P. Simpson’s 3/8 Rule Q. Trapezoidal Rule R. Simpson’s 1/3 Rule (A) P-2, Q-1, R-3 PI- A (D) SP Let X be a normal random variable with mean 1 and variance 4. The probability P{X<0} is (A) 0.5 (C) greater than 0.5 and less than 1.0 Q.12 (D) 1012.2 A planar closed kinematic chain is formed with rigid links PQ = 2.0 m, QR = 3.0 m, RS = 2.5 m and SP = 2.7 m with all revolute joints. The link to be fixed to obtain a double rocker (rockerrocker) mechanism is (A) PQ Q.11 (C) 981.7 (B) P-3, Q-2, R-1 Order of Fitting Polynomial 1. First 2. Second 3. Third (C) P-1, Q-2, R-3 (D) P-3, Q-1, R-2 3/16

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2013 Q.16 PRODUCTION & INDUSTRIAL ENGG - PI A rod of length L having uniform cross-sectional area A is subjected to a tensile force P as shown in the figure below. If the Young’s modulus of the material varies linearly from E1 to E2 along the length of the rod, the normal stress developed at the section-SS is S E1 E2 P P S L/2 L (A) Q.17 P A P( E1 − E2 ) A( E1 + E2 ) ∆p D 4L (B) τ w = ∆p D 2 4L2 PE1 AE2 (C) τ w = ∆p D 2L (D) τ w = 4 ∆p L D (B) ability to absorb energy upto fracture (D) resistance to indentation (B) 20 (C) 24 (D) 40 A steel bar 200 mm in diameter is turned at a feed of 0.25 mm/rev with a depth of cut of 4 mm. The rotational speed of the workpiece is 160 rpm. The material removal rate in mm3/s is (A) 160 Q.21 (D) A cube shaped casting solidifies in 5 min. The solidification time in min for a cube of the same material, which is 8 times heavier than the original casting, will be (A) 10 Q.20 PE 2 AE1 For a ductile material, toughness is a measure of (A) resistance to scratching (C) ability to absorb energy till elastic limit Q.19 (C) For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop ∆p over a length L and the wall shear stress τ w are related by (A) τ w = Q.18 (B) (B) 167.6 (C) 1600 (D) 1675.5 In the 3-2-1 principle of fixture design, 3 refers to the number of (A) clamps required (B) locators on the primary datum face (C) degrees of freedom of the workpiece (D) operations carried out on the primary datum face Q.22 In simple exponential smoothing forecasting, to give higher weightage to recent demand information, the smoothing constant must be close to (A) −1 PI- A (B) zero (C) 0.5 (D) 1 4/16

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2013 Q.23 PRODUCTION & INDUSTRIAL ENGG - PI A company manufactures 1000 toys every day. On an average, 10% of the toys are defective and 40% of the defective toys can be reworked into defect-free ones. The average number of defect-free toys manufactured daily is (A) 900 Q.24 (B) p-chart (D) 960 (C) x -chart (D) R-chart Which one of the following is modeled based on adaptation capabilities of biological systems? (A) Relational database (C) Simulated annealing algorithm PI- A (C) 940 The type of control chart used to monitor the amount of dispersion in a sample is (A) c-chart Q.25 (B) 920 (B) Fuzzy system (D) Genetic algorithm 5/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Q.26 to Q.55 carry two marks each. Q.26 A company plans to purchase a machine whose uptime needs to be atleast 95%. They have shortlisted two models of the machine with the following operational characteristics: Machine Model M Model N MTBF (hr) 60 48 MTTR (hr) 4 2 The company should buy (A) only Model M (C) either Model M or N Q.27 A manufacturer produces bars designed to be of 10 mm diameter with a tolerance of ±0.1 mm. Historical data indicates that manufactured bars have an average diameter of 9.98 mm with a standard deviation of 0.15 mm. The process capability index is (A) 0.08 Q.28 (B) 0.12 (C) 0.18 (D) 0.27 Let (P) denote the linear programming formulation of a transportation problem with m sources and n destinations. Then, the dual linear program of (P) has (A) m × n variables and m × n constraints (C) m + n variables and m + n constraints Q.29 (B) only Model N (D) neither Model M nor N (B) m × n variables and m + n constraints (D) m + n variables and m × n constraints Following data refers to an automat and a center lathe, which are being compared to machine a batch of parts in a manufacturing shop. Machine Set-up Time in min Machine Set-up Cost in Rs./min Machining Time per piece in min Machining Cost in Rs./min Automat 120 800 2 500 Center Lathe 30 150 25 100 Automat will be economical if the batch size exceeds (A) 28 (B) 32 (C) 61 (D) 75 + 0 .020 Q.30 Cylindrical pins of 25 + 0.010 mm diameter are electroplated in a shop. Thickness of the plating is 30 ±2.0 micron. Neglecting gage tolerances, the size of the GO gage in mm to inspect the plated components is (A) 25.042 Q.31 (C) 25.074 (D) 25.084 During the electrochemical machining (ECM) of iron (atomic weight = 56, valency = 2) at current of 1000 A with 90% current efficiency, the material removal rate was observed to be 0.26 gm/s. If Titanium (atomic weight = 48, valency = 3) is machined by the ECM process at the current of 2000 A with 90% current efficiency, the expected material removal rate in gm/s will be (A) 0.11 PI- A (B) 25.052 (B) 0.23 (C) 0.30 (D) 0.52 6/16

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2013 Q.32 PRODUCTION & INDUSTRIAL ENGG - PI Specific enthalpy and velocity of steam at inlet and exit of a steam turbine, running under steady state, are as given below: Inlet steam condition Exit steam condition Specific enthalpy (kJ/kg) 3250 2360 Velocity (m/s) 180 5 The rate of heat loss from the turbine per kg of steam flow rate is 5 kW. Neglecting changes in potential energy of steam, the power developed in kW by the steam turbine per kg of steam flow rate, is (A) 901.2 Q.33 (B) 911.2 (D) 17082.5 A simply supported beam of length L is subjected to a varying distributed load sin (3 π x/L) Nm−1, where the distance is measured from the left support. The magnitude of the vertical reaction force in N at the left support is (B) L 3π (A) zero Q.34 (C) 17072.5 (C) L π (D) 2 L π The probability that a student knows the correct answer to a multiple choice question is 2 . If the 3 student does not know the answer, then the student guesses the answer. The probability of the guessed answer being correct is 1 . Given that the student has answered the question correctly, the 4 conditional probability that the student knows the correct answer is (A) Q.35 2 3 (B) 3 4 (C) The solution to the differential equation 5 6 (D) 8 9 d 2u du −k = 0 where k is a constant, subjected to the 2 dx dx boundary conditions u(0) = 0 and u(L) = U, is (A) u = U Q.36 4 3 2 e + 9 9 1 − e kx 1 − e kL (B) u = U The value of the definite integral (A) Q.37 x L (B) e 1 (C) u = U 1 − e − kx 1 − e −kL (D) u = U 1 + e kx 1 + e kL x ln ( x ) dx is 2 3 4 e − 9 9 (C) 2 3 4 e + 9 9 (D) 4 3 2 e − 9 9 The following surface integral is to be evaluated over a sphere for the given steady velocity vector field F = xi + yj + zk defined with respect to a Cartesian coordinate system having i, j and k as unit base vectors. S 1 ( F .n) dA 4 where S is the sphere, x 2 + y 2 + z 2 = 1 and n is the outward unit normal vector to the sphere. The value of the surface integral is (A) π PI- A (B) 2 π (C) 3π 4 (D) 4 π 7/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Q.38 f (0) = 0, (A) Q.39 df (0) = 4 . The Laplace transform of f (t ) is given by dt 2 s +1 (B) 4 s +1 (C) 4 s +1 2 (D) 2 s +1 4 A flywheel connected to a punching machine has to supply energy of 400 Nm while running at a mean angular speed of 20 rad/s. If the total fluctuation of speed is not to exceed ±2%, the mass moment of inertia of the flywheel in kg-m2 is (A) 25 Q.40 d2 f + f = 0 and the auxiliary conditions, dt 2 The function f (t ) satisfies the differential equation (B) 50 (C) 100 (D) 125 A single riveted lap joint of two similar plates as shown in the figure below has the following geometrical and material details. P w P w t t plate width w = 200 mm plate thickness t = 5 mm number of rivets n = 3 rivet diameter dr = 10 mm rivet hole diameter dh = 11 mm allowable tensile stress of plate p = 200 MPa allowable bearing stress of rivet c = 150 MPa If the plates are to be designed to avoid tearing failure, the maximum permissible load P in kN is (A) 83 Q.41 (B) 125 (C) 167 (D) 501 Two cutting tools are being compared for a machining operation. The tool life equations are: Carbide tool: HSS tool: VT 1.6 = 3000 VT 0.6 = 200 where V is the cutting speed in m/min and T is the tool life in min. The carbide tool will provide higher tool life if the cutting speed in m/min exceeds (A) 15.0 Q.42 (C) 49.3 (D) 60.0 In a CAD package, mirror image of a 2D point P(5,10) is to be obtained about a line which passes through the origin and makes an angle of 45° counterclockwise with the X-axis. The coordinates of the transformed point will be (A) (7.5, 5) PI- A (B) 39.4 (B) (10, 5) (C) (7.5, −5) (D) (10, −5) 8/16

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2013 Q.43 Q.44 PRODUCTION & INDUSTRIAL ENGG - PI In water jet machining, the water jet is issued through a 0.3 mm diameter orifice at a pressure of 400 MPa. The density of water is 1000 kg/m3. The coefficient of discharge is 1.0. Neglecting all losses during water jet formation through the orifice, the power of the water jet in kW is (A) 25.3 (B) 50.6 (C) 75.9 A linear programming problem is shown below. Maximize 3x + 7y Subject to 3x + 7y 4x + 6y x, y 0 (D) 101.2 10 8 It has (A) an unbounded objective function (C) exactly two optimal solutions Q.45 (B) exactly one optimal solution (D) infinitely many optimal solutions Consider a two machine flow shop where jobs are first processed in Machine X and then in Machine Y, in the same sequence. The processing times of four jobs (1, 2, 3 and 4) on the machines are: Processing time (in min) Job Machine X Machine Y 1 6 5 2 3 4 3 7 6 4 5 4 The sequence of jobs on the machines that minimizes make span is Q.46 (A) 2−3−1−4 (B) 1−2−3−4 Match the CORRECT pairs. Group I P. Man-machine chart Q. Learning curve R. Time study S. Motion study (A) P-2, Q-3, R-4, S-1 (C) P-4, Q-1, R-3, S-2 Q.47 (C) 2−1−3−4 (D) 3−1−4−2 Group II 1. Determines standard time of jobs 2. Finds the preferred method of doing work 3. Measures work improvement 4. Shows idle times (B) P-3, Q-2, R-4, S-1 (D) P-4, Q-3, R-1, S-2 A firm produces 120 units of product in every 8 hour shift. Four operations as given below are needed to manufacture each unit of product. Operation Precedence Processing time (in min) P none 1 Q P 2 R P 4 S Q, R 3 The above operations are to be assigned to workstations, such that one or more operations are performed in each workstation. Only one unit of product will be processed in each workstation at a time. The minimum number of workstations that will achieve the production target, without violating the precedence constraints, is (A) 1 PI- A (B) 2 (C) 3 (D) 4 9/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Common Data Questions Common Data for Questions 48 and 49: A disc of 200 mm outer and 80 mm inner diameter is faced at a feed of 0.1 mm/rev with a depth of cut of 1 mm. The facing operation is undertaken at a constant cutting speed of 90 m/min in a CNC lathe. The main (tangential) cutting force is 200 N. Q.48 Neglecting the contribution of the feed force towards cutting power, the specific cutting energy in J/mm3 is (A) 0.2 Q.49 (B) 2 (C) 200 (D) 2000 Assuming approach and over-travel of the cutting tool to be zero, the machining time in min is (A) 2.93 (B) 5.86 (C) 6.66 (D) 13.33 Common Data for Questions 50 and 51: The demand for soap at a retailer is 40 kg per day. The retailer buys soap from a company in bulk at the cost of Rs. 50 per kg. The retailer incurs a cost of Rs. 200 to place an order to the company, and a holding cost of Rs. 0.1 per kg per day to store the soap. The lead time between the placing and receiving of orders is 3 days. The retailer’s current ordering policy is to order 200 kg every 5 days. Q.50 To avoid stock out situations, the retailer needs to place orders when the inventory level (in kg) drops to (A) 40 Q.51 (C) 80 (D) 120 If the retailer uses an optimum order policy to minimize the total cost, the saving in Rs. in the total cost as compared to the current policy will be (A) 10 PI- A (B) 60 (B) 20 (C) 40 (D) 50 10/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Linked Answer Questions Statement for Linked Answer Questions 52 and 53: A project consists of seven activities, whose durations are independent normal random variables, as shown in the table below. Activities are identified by their beginning node i and ending node j. Mean duration (in days) 6 9 2 8 7 8 4 Activity (node i – node j) 1−2 1−3 2−3 2−4 3−4 3−5 4−5 Standard deviation (in days) 1 2 0.5 0.5 1 1 1 Q.52 The critical path of the project, based on the mean activity duration, is (A) 1−2−3−4−5 (B) 1−2−3−5 (C) 1−3−5 (D) 1−3−4−5 Q.53 Let denote the cumulative distribution function of the standard normal random variable. The probability that all activities on the critical path, based on the mean activity duration, are completed in 22 days is (A) −1 (0.333) (B) −1 (0.816) (C) −1 (1.664) (D) −1 (2.235) Statement for Linked Answer Questions 54 and 55: In orthogonal turning of a bar of 100 mm diameter with a feed of 0.25 mm/rev, depth of cut of 4 mm and cutting velocity of 90 m/min, it is observed that the main (tangential) cutting force is perpendicular to the friction force acting at the chip-tool interface. The main (tangential) cutting force is 1500 N. Q.54 Q.55 The orthogonal rake angle of the cutting tool in degree is (A) zero (B) 3.58 (C) 5 The normal force acting at the chip-tool interface in N is (A) 1000 PI- A (D) 7.16 (B) 1500 (C) 2000 (D) 2500 11/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI General Aptitude (GA) Questions Q.56 to Q.60 carry one mark each. Q.56 Were you a bird, you ___________________ in the sky. (A) would fly Q.57 (B) shall fly (C) should fly (D) shall have flown Choose the grammatically INCORRECT sentence: (A) He is of Asian origin. (B) They belonged to Africa. (C) She is an European. (D) They migrated from India to Australia. Q.58 Complete the sentence: Universalism is to particularism as diffuseness is to _______________. (A) specificity Q.59 (C) generality (D) adaptation What will be the maximum sum of 44, 42, 40, ...... ? (A) 502 Q.60 (B) neutrality (B) 504 (C) 506 (D) 500 Which one of the following options is the closest in meaning to the word given below? Nadir (A) Highest (B) Lowest (C) Medium (D) Integration Q.61 to Q.65 carry two marks each. Q.61 A tourist covers half of his journey by train at 60 km/h, half of the remainder by bus at 30 km/h and the rest by cycle at 10 km/h. The average speed of the tourist in km/h during his entire journey is (A) 36 Q.62 (D) 18 (B) 15,180 (C) 11,000 (D) 10,120 Out of all the 2-digit integers between 1 and 100, a 2-digit number has to be selected at random. What is the probability that the selected number is not divisible by 7? (A) 13/90 PI- A (C) 24 The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by 1/5 of the current wages and the working hours decrease by 1/24 of the current period, then the new cost of erection in Rs. is (A) 16,500 Q.63 (B) 30 (B) 12/90 (C) 78/90 (D) 77/90 12/16

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2013 Q.64 PRODUCTION & INDUSTRIAL ENGG - PI After several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just before committing suicide, he came across a spider attempting tirelessly to have its net. Time and again, the spider failed but that did not deter it to refrain from making attempts. Such attempts by the spider made Bruce curious. Thus, Bruce started observing the near-impossible goal of the spider to have the net. Ultimately, the spider succeeded in having its net despite several failures. Such act of the spider encouraged Bruce not to commit suicide. And then, Bruce went back again and won many a battle, and the rest is history. Which one of the following assertions is best supported by the above information? (A) Failure is the pillar of success. (B) Honesty is the best policy. (C) Life begins and ends with adventures. (D) No adversity justifies giving up hope. Q.65 Find the sum of the expression 1 1 1 1 + + + .......... ..... + 80 + 81 1+ 2 2+ 3 3+ 4 (A) 7 (B) 8 (C) 9 (D) 10 END OF THE QUESTION PAPER PI- A 13/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Space for Rough Work PI- A 14/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Space for Rough Work PI- A 15/16

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2013 PRODUCTION & INDUSTRIAL ENGG - PI Space for Rough Work PI- A 16/16

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GATE 2013 : Answer keys for PI - Production and Industrial Engineering Paper Q.No ORS code A ORS code B ORS Code C ORS Code D Key(s)/Value(s) Key(s)/Value(s) Key(s)/Value(s) Key(s)/Value(s) PI 1 C D C D PI 2 B D B C PI 3 C C C D PI 4 C D A A PI 5 C B B A PI 6 A D C B PI 7 C Marks to All A Marks to All PI 8 B B C D PI 9 A A C B PI 10 C A C D PI 11 B D B C PI 12 C C D D PI 13 C D C D PI 14 D C D C PI 15 D B C B PI 16 A C D C PI 17 A A B C PI 18 B B D C PI 19 Marks to All C Marks to All A PI 20 D A B C PI 21 B C A B PI 22 D C A A PI 23 C C D C PI 24 D B D B PI 25 D C C C PI 26 B D B A PI 27 C C C C PI 28 D A D A PI 29 C B B C PI 30 D A A B PI 31 C B C B PI 32 A B D A PI 33 B A C B PI 34 D C D A PI 35 B C C C Page 1 of 2

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GATE 2013 : Answer keys for PI - Production and Industrial Engineering Paper Q.No ORS code A ORS code B ORS Code C ORS Code D Key(s)/Value(s) Key(s)/Value(s) Key(s)/Value(s) Key(s)/Value(s) PI 36 C A B D PI 37 A C D B PI 38 C B C C PI 39 A D A D PI 40 C B B C PI 41 B A A D PI 42 B C B C PI 43 A D B A PI 44 B C C B PI 45 A D A D PI 46 D C C B PI 47 C B A C PI 48 B D A A PI 49 A A B D PI 50 D B A A PI 51 A A D B PI 52 D A D A PI 53 B B B B PI 54 A D A D PI 55 B B B B PI 56 A C B A PI 57 C C A A PI 58 A A C B PI 59 C B A C PI 60 B A C C PI 61 C B B D PI 62 B D D C PI 63 D C D B PI 64 D B C B PI 65 B D B D Page 2 of 2

 

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