GATE PI purpose:exam-prep PYQs & Answers — Page 23 — Exam Papers

Questions 221–230 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 23 of 65

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

Your answerChoose one option.

A.

2

B.

4

C.

8

D.

16

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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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A wooden cubical block of side 0.1 m has specific gravity (SG) of 0.75. It is held submerged in a pool of oil and water by a massless rigid wire as shown in figure. The density of water is 1000 kg/m

and acceleration due to gravity is 9.8 m/s

. The tension, in N, in the wire is _____ (round off to 2 decimal places).

Diagram for Production and Industrial Engineering question 31

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Under steady state conditions, superheated steam enters the turbine with enthalpy, h

= 3200 kJ/kg and wet steam leaves the turbine at pressure

= 0.1 bar. The heat loss is 100 kJ/kg and work output is 100 kJ/kg. Kinetic and potential energies for inflow and outflow are neglected. At pressure 0.1 bar, the enthalpy of saturated liquid is 200 kJ/kg and the enthalpy of vaporization is 2400 kJ/kg. The dryness fraction of the steam at the exit of the turbine is _____ (round off to 2 decimal places).

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The total number of nonconformities is 420 from 30 samples. The size of each sample is 100. The lower control limit for the control chart for number of nonconformities is _____ (round off to 2 decimal places).

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Two metal sheets are joined using resistance spot welding. A weld current of 4500 A is applied for 0.2 s. The effective contact resistance at the sheet interface is

. The thermal efficiency of the weld process is 50 %. The amount of heat, in J, used for producing a spot weld is _____(in integer).

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A metal rod of diameter 14 mm is subjected to a tensile test. After the test, its cross-section diameter at the fractured end is 12 mm. The ductility, in % , is _____ (round off to 2 decimal places).

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