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GATE Production & Industrial

618 questions · 25 years · 20 subjects

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Practice Production & Industrial PYQs

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2026 Q1

'The shopkeeper sells lemons.' In this sentence, the word 'lemons' is the _________.

English/MCQ/answer key
2026 Q2

The figure below is supposed to show three non-overlapping shapes – one oval and two triangles. Which one of the following figures P, Q, R, or S fits the missing portion indicated...

Logical Reasoning/DIAGRAM/answer key
2026 Q3

At how many points will the curves y = x² and y = -x² – 2x - 1 intersect in the real (x, y) plane?

Mathematics/MCQ/answer key
2026 Q4

'If Anish had scored hundred runs in today's match, he would have been made the captain of his team. He would have then become the youngest captain in his team's history. Unfortuna...

Logical Reasoning/MCQ/answer key
2026 Q5

Which one of the following figures P, Q, R, or S, correctly shows the 45° clockwise-rotated version of figure (I)?

Logical Reasoning/MCQ/answer key
2026 Q6

Match the words in Column I with their synonyms in Column II. Column I (i) Lonely (ii) Literal (iii) Lousy (iv) Lethal Column II (p) Verbatim (q) Solitary (r) Deadly (s) Terrible

English/MCQ/answer key
2026 Q7

In the given figure, $\overline{PQ}$ is the diameter of a circle with center $O$. Two points $R$ and $S$ are chosen on the circle such that $\angle ROS = 80^{\circ}$. When $\overli...

Mathematics/MCQ/answer key
2026 Q8

Based on the relationship between each polygon and the number inside it, the value of 'X' is

Logical Reasoning/MCQ/answer key
2026 Q9

Consider a linear arrangement of seven bulbs, each of which can be in the ON or OFF states. The initial configuration of the bulbs is shown in the figure. In every Step, the states...

Logical Reasoning/MCQ/answer key
2026 Q10

P and Q are two positive integers such that P² = Q² + 13. The product of the numbers P and Q is _________

Logical Reasoning/MCQ/answer key
2026 Q11

Which ONE of the following steps is NOT a part of product concept selection?

Production and Industrial Engineering/MCQ/answer key
2026 Q12

Which ONE of the following is FALSE with respect to filler material used in brazing?

Production and Industrial Engineering/MCQ/answer key
2026 Q13

An arc welding process is being carried out with a power source of 6 kW to weld two similar metals. The total energy loss is 50%, the area of cross-section of the weld is 10 mm², a...

Production and Industrial Engineering/MCQ/answer key
2026 Q14

Which ONE of the following options represents correctly ALL the constraints resulting in the feasible region for the given linear programming problem as shown in the figure? Note:...

Industrial Engineering/MCQ/answer key
2026 Q15

Which ONE of the following options is the closest approximation to the value of the given definite integral? $\int_{0}^{1} e^{-x^2} dx$ Note: Use numerical integration

Mathematics/MCQ/answer key
2026 Q16

Which ONE of the following is the value of $\frac{1}{i^n}$? where $i = \sqrt{-1}$, and $n$ is an even positive integer.

Mathematics/MCQ/answer key
2026 Q17

Which ONE of the following CORRECTLY matches the metrology instruments and their respective most common applications? Metrology Instrument P Sine bar Q Profilometer R Vernier calli...

Industrial Engineering/MTF/answer key
2026 Q18

A plain carbon steel sample of eutectoid composition is heat treated from austenizing temperature to achieve a microstructure consisting of ONLY bainite. Which ONE of the following...

Mechanical Engineering/MCQ/answer key
2026 Q19

An Iron-Carbon alloy at room temperature has pro-eutectoid ferrite as a constituent in the microstructure, that formed above the eutectoid temperature. The alloy also has pearlite...

Mechanical Engineering/MCQ/answer key
2026 Q20

An engineering student is fabricating a setup and needs a key for connecting a shaft to the hub of a rotating machine element. The student uses a sunk key which is tapered and prev...

Mechanical Engineering/MCQ/answer key
2026 Q21

The ratio of hydrostatic stress to volumetric strain is known as ________.

Mechanical Engineering/MCQ/answer key
2026 Q22

In the given weighted graph, the weights represent distance between the corresponding vertices. The shortest distance between vertex A and vertex E is d. The number of paths with d...

Computer Science/MCQ/answer key
2026 Q23

Which ONE of the following is NOT an assumption of the economic order quantity (EOQ) model?

Industrial Engineering/MCQ/answer key
2026 Q24

Painting is one of the activities in a construction project. For the painting activity that takes 6 days, both the total float and the free float are zero. Which ONE of the followi...

Industrial Engineering/MCQ/answer key
2026 Q25

Which ONE or MORE among the following tube cross-sections shown can be produced by true centrifugal casting method? Note: The cross-sections shown are perpendicular to the axis of...

Production and Industrial Engineering/MCQ/answer key
2026 Q26

Which ONE or MORE among the following options CORRECTLY match(es) the type of defects with the corresponding metal working processes in which they are likely to occur? Defect P Cen...

Production and Industrial Engineering/MTF/answer key
2026 Q27

Which ONE or MORE among the options given is/are well established format(s) of data transfer used in geometrical modelling related to computer aided design (CAD)?

Mechanical Engineering/MCQ/answer key
2026 Q28

In statistical analysis of numerical data, which ONE or MORE among the options is/are possible value(s) of correlation coefficient?

Mathematics/MCQ/answer key
2026 Q29

Which ONE or MORE among the following processes of the Carnot cycle is/are isentropic?

Mechanical Engineering/MCQ/answer key
2026 Q30

A square of side length 50 mm is to be blanked from a strip of 2 mm thickness. The sheet metal has a shear strength of 200 MPa. To enable a single step blanking operation, the theo...

Production and Industrial Engineering/NAT/answer key
2026 Q31

A box in a machine shop consists of 5 coated and 10 uncoated cutting inserts which are of otherwise similar characteristics. The inserts got mixed up randomly in the box. An operat...

Mechanical Engineering/NAT/answer key
2026 Q32

A customer has made a lumpsum investment of INR 2,00,000 with a bank. The discount rate is 15% per year. The investment enables the customer to receive a payout of INR 1,00,000 yea...

Industrial Engineering/NAT/answer key
2026 Q33

A modified Taylor tool life equation is given as follows: $VT^n f^m = constant$ where V is the cutting speed (m/s), T is the tool life in minutes and f is the feed in mm/rev, n = 0...

Mechanical Engineering/NAT/answer key
2026 Q34

Consider the line integral $\int_C (2x dx + 2y dy + 2z dz)$ where C is a semi-circle in the z = 0 plane with start point at (0, 0, 0) and end point at (1, 0, 0). The value of the l...

Mathematics/NAT/answer key
2026 Q35

Consider the aggregate planning problem for a toy car manufacturing organization whose demand at a plant is as follows: Month September October November December Demand (in units)...

Production and Industrial Engineering/NAT/answer key
2026 Q36

In a polymer extrusion process, some cross-sectional shapes of the extruded polymers are shown. Cross-sections of available dies are also shown. Which ONE of the following CORRECTL...

Mechanical Engineering/MCQ/answer key
2026 Q37

Iron powder produced by gas atomization has a tap density and an apparent density of 3.26 g/cm³ and 2.66 g/cm³, respectively. The density of solid iron is 7.85 g/cm³. Which ONE of...

Production and Industrial Engineering/MCQ/answer key
2026 Q38

Which ONE of the following options CORRECTLY matches the matrices to their properties? Matrix P [-30 17 5 17 0 -12 5 -12 4] Q [0 1 9 7 0 2 12 3 0] R [2/3 1/3 2/3 0 2/3 -1/3 0 4/3 -...

Mathematics/MCQ/answer key
2026 Q39

A sheet metal drawing is considered feasible if the following conditions are met: • Reduction ratio 1% A sheet metal drawing process is being planned on a sheet metal with a thickn...

Mechanical Engineering/MCQ/answer key
2026 Q40

A student is trying to determine the flatness and parallelism of the top surface of a part whose cross-section, assumed uniform in the Z direction, is shown in the figure. Which ON...

Mechanical Engineering/MCQ/answer key
2026 Q41

The function, r(t), signifies the likelihood that a component has survived up to time t and fails in the next instant of time. r(t) = f(t)/(1 – F(t)) where f(t) denotes the probabi...

Production and Industrial Engineering/MCQ/answer key
2026 Q42

Which ONE of the following options CORRECTLY matches the machining process and associated predominant material removal mechanism? Advanced machining process P Laser beam machining...

Mechanical Engineering/MCQ/answer key
2026 Q43

A glass tube of 2.5 mm diameter is immersed vertically in a fluid. Assume contact angle is zero. The surface tension of the fluid is 0.1 N/m, density of the fluid is 1000 kg/m³ and...

Mechanical Engineering/MCQ/answer key
2026 Q44

In an M/M/1 queuing system, the customers arrive at a rate of 3 per minute, and the average number of customers in the system is n at steady state. Assume that the server utilizati...

Industrial Engineering/MCQ/answer key
2026 Q45

A steel cube of side 10 cm is made by the sand-casting process. A cylindrical side-riser with diameter, d, and height, h, needs to be used. Assume: * No surface sharing between the...

Mechanical Engineering/MCQ/answer key
2026 Q46

In a rolling operation, a 200 mm wide strip of 23 mm thickness needs to be reduced to 20 mm in a single pass. The roll diameter is 200 mm. Four lubricants P, Q, R, and S with coeff...

Production and Industrial Engineering/MCQ/answer key
2026 Q47

In the theory of orthogonal machining, assuming that the shear plane will take up an angle that minimizes energy, the shear angle can be shown to be $\phi = C - \frac{\alpha}{2} +...

Mechanical Engineering/MCQ/answer key
2026 Q48

Which ONE or MORE among the following homogeneous representations in robotics involve(s) rotation about Y-axis by an angle $\theta$?

Production and Industrial Engineering/MCQ/answer key
2026 Q49

Which ONE or MORE among the following options is/are TRUE for the ideal operating characteristics (OC) curve given in the figure? Note: $p_0$ represents the acceptable quality leve...

Industrial Engineering/MCQ/answer key
2026 Q50

The operation chart of a method of assembling nuts and bolts for a left-handed operator has been illustrated in the figure. Which ONE or MORE among the following options is/are COR...

Industrial Engineering/MCQ/answer key
2026 Q51

Which ONE or MORE among the following work materials is/are NOT commonly machined using diamond cutting tools?

Production and Industrial Engineering/MCQ/answer key
2026 Q52

A linear slot is to be milled in a single pass from the point (0, 0) to (180, 180) on XY plane by a CNC machine. The actual velocity along the Y-axis is 5% less than the intended v...

Industrial Engineering/NAT/answer key
2026 Q53

In laser beam machining, the time ($t_m$) required for the material to attain the melting temperature from a room temperature ($\theta_0$) of 32 °C is expressed by the following ex...

Industrial Engineering/NAT/answer key
2026 Q54

In the measurement of surface roughness using a 2D stylus profilometer, a surface profile measured over a length of 0.8 mm was recorded on a graph paper. During recording, vertical...

Industrial Engineering/NAT/answer key
2026 Q55

A cylindrical metal component of 10 mm diameter is subjected to uniform uniaxial tension during operation. It was observed that a force of 14 kN produces a uniform reduction of 3×1...

Mechanical Engineering/NAT/answer key
2026 Q56

A custom pinion, with a width equal to 10 times the module, has 20 full depth teeth and a pressure angle of 20º is being designed. It should transmit a torque of 95 N-m to a corres...

Mechanical Engineering/NAT/answer key
2026 Q57

A company has a fixed cost of INR 3,00,000 and a variable cost of INR 150 per unit for manufacturing of a product. The company sells 5,000 units of that product making a profit equ...

Industrial Engineering/NAT/answer key
2026 Q58

A company must allocate oil produced from their two plants to meet all the demands of two markets. The cost per litre of allocation from plant $i \in \{1,2\}$ to market $j \in \{1,...

Industrial Engineering/NAT/answer key
2026 Q59

The computer centre (CC) in an institute manages the central server for which researchers queue to run their computer programs. CC processes programs only one at a time. Four compu...

Industrial Engineering/NAT/answer key
2026 Q60

If $\frac{dy}{dt} = 2y$, and the value of y at t = 0 is 2, then the value of y at t = 1 is ______ (rounded off to two decimal places).

Mathematics/NAT/answer key
2026 Q61

The number of soldering defects that occur in a semiconductor device follows a discrete Poisson distribution with a probability mass function $p(x) = \frac{e^{-\lambda}\lambda^x}{x...

Mathematics/NAT/answer key
2026 Q62

A time study was carried out for a job broken into two elements. For each element, three iterations of task were observed, and observed time was recorded. The observed times (in se...

Industrial Engineering/NAT/answer key
2026 Q63

In a hole-shaft assembly, the following are the dimensions and tolerances (all in mm) provided for the hole and shaft: Hole: $22^{+0.018}_{+0.010}$ Shaft: $22^{+0.075}_{+0.004}$ Th...

Mechanical Engineering/NAT/answer key
2026 Q64

Consider an assembly line producing an item through a process involving three activities in the following order: cutting, welding, and polishing. There are three workers available:...

Industrial Engineering/NAT/answer key
2026 Q65

In the composite filament winding process as shown in the figure, the mandrel diameter is 700 mm and is rotating at a speed, N = 6 rev/min. If a 45° helical winding angle is needed...

Production and Industrial Engineering/NAT/answer key
2017 PYQ

In a machining operation with turning tool, the tool life $$(T)$$ is related to cutting speed $$v$$ $$(m/s),$$ feed $$f(mm)$$ and depth of cut $$d(mm)$$ as $$$T = C\,v{\,^{ - 2.5}}...

Machine Tools and Machining/INTEGER
2017 PYQ

Turning, drilling, boring and milling are commonly used machining operations. Among these, the operation (s) performed by a single point cutting tool is (are)

Machine Tools and Machining/MCQ/answer key
2017 PYQ

The inside and outside radii of a thick- walled cylindrical pressure vessel are denoted by $$a$$ and $$b,$$ respectively. If the vessel is subjected to an internal pressure $$P,$$...

Strength of Materials/MCQ/answer key
2017 PYQ

If $$E$$ is the modulus of elasticity in $$GPa$$, $$G$$ is the shear modulus in $$GPa$$ and $$v$$ is the Poisson's ratio of a linear elastic and isotropic material, the three terms...

Strength of Materials/MCQ/answer key
2017 PYQ

An electrical appliances showroom sells $$2,400$$ ceiling fans in one year ($$52$$ weeks). The holding cost is $$10\% $$ of the cost of the ceiling fan. The most of one ceiling fan...

Industrial Engineering/MCQ/answer key
2017 PYQ

A pipeline with variable cross-section contains water with specific weight $${10^4}\,\,N/{m^3}.$$ The flow conditions at two points $$1$$ and $$2$$ on the axis of the pipe are: $$\...

Fluid Mechanics/INTEGER
2017 PYQ

A metallic cylindrical casing of an exhaust pipe has inner radius $$50$$ $$mm$$ and wall thickness $$7$$ $$mm.$$ If the thermal conductivity of the material of the casing is $$50$$...

Heat Transfer/INTEGER
2017 PYQ

A solid circular shaft is subjected to a bending moment $$M$$ and torque $$T$$ simultaneously. Neglecting the effects of stress concentration, the equivalent bending moment is expr...

Machine Design/MCQ/answer key
2017 PYQ

A pair of spur gears with $${20^ \circ }$$ full-depth involute teeth is used to transmit $$3.5$$ $$kW$$ of power. The pinion rotates at $$700$$ $$rpm$$ and has pitch circle diamete...

Machine Design/MCQ/answer key
2017 PYQ

A steel wire of $$2$$ $$mm$$ diameter is to be drawn from a wire of $$5mm$$ diameter. The value of true strain developed is _____________ (up to three decimal places)

Metal Forming/INTEGER
2017 PYQ

A metallic strip having a thickness of $$12$$ $$mm$$ is to be rolled using two steel rolls, each of $$800$$ $$mm$$ diameter. It is assumed that there is no change in width of the s...

Metal Forming/MCQ/answer key
2017 PYQ

In carbon dioxide molding process, the binder used is

Casting/MCQ/answer key
2017 PYQ

In a calendar year, the demand forecast of motorbikes for the month of june is $$200.$$ The actual demand of motorbikes for the month of June and July are $$300$$ and $$350,$$ resp...

Industrial Engineering/INTEGER
2017 PYQ

In gas tungsten arc welding process, the material coated on pure tungsten electrode to enhance its current carrying capacity is

Joining of Materials/MCQ/answer key
2017 PYQ

For a two dimensional state-of-stress defined as $${\sigma _{xx}} = {\sigma _{yy}} = {\tau _{xy}} = S,$$ the Mohr's circle of stress has

Strength of Materials/MCQ/answer key