GATE PI year:2023 PYQs & Answers — Page 3

Questions 21–30 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 3 of 7

Transformation matrix to translate a point P from (10, 15) to (15, 25) is

Your answerChoose one option.

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A copper rod of 200 mm diameter and 400 mm length is extruded to the final diameter of 100 mm. The extrusion ratio is

Your answerChoose one option.

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A symbol for surface texture parameters is shown in figure. The difference between maximum and minimum values of surface roughness (

) is

Diagram for Production and Industrial Engineering question 23

Your answerChoose one option.

0.499

0.508

0.762

1.524

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A thin cylinder has length L, diameter d, and thickness

. It is made of a material with modulus of elasticity E and Poisson’s ratio

. When the cylinder is subjected to an internal pressure P, the change in length is

Your answerChoose one option.

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Creep of mild steel at elevated temperature involves

Your answerChoose one option.

elastic deformation under constant load

elastic deformation under dynamic load

plastic deformation under constant load

plastic deformation under dynamic load

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Number of minimum control points required to generate a quadratic B-Spline curve is

Your answerChoose one option.

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The Euler’s method is used to solve

. The step size is 0.1. The approximate value of

is _____ (round off to 2 decimal places).

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A solid circular disk of 0.025 m thicknes is used as flywheel. The density of the disk material is 7800 kg/m

and the mass moment of inertia of the disk about its center is 4.36 kg-m

. The radius, in m, of the disk is _____(round off to 2 decimal places).

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The standard time for completing a job on a machine is 10 minutes. Number of machines available is 5, each machine is available for 300 hours/month, and average machine utilization is 80 %. The maximum number of jobs that can be produced in a month is _____ (in integer).

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Travel details of two persons P and Q traveling from city X to city Y are given as

Person	Mode of travel	Monetary worth of functions (travel time and comfort), in Rupees	Ticket cost, in Rupees
P	Aircraft	800	400
Q	Train	200	200

The positive difference in value of travel between the two modes is _____ (in integer).

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GATE PI year:2023 PYQs

Question 21

Question 22

Question 23

Question 24

Question 25

Question 26

Question 27

Question 28

Question 29

Question 30