2023 · Paper 1

Complete GATE XE 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 34–36 of 175. Imported answers require review unless explicitly marked reviewed.

Question 34

Open question

XE-BMCQ2 marksNeeds review

Consider steady incompressible flow of a Newtonian fluid over a horizontal flat plate, as shown in the figure. The boundary layer thickness is proportional to



Your answerChoose one option.

A.



B.



C.



D.



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Question 35

Open question

XE-BMSQ2 marksNeeds review

In a steady two-dimensional compressible flow,



and



are the



- and



-components of flow velocity, respectively and



is the fluid density. Among the following pairs of relations, which one(s) perfectly satisfies/satisfy the definition of stream function,



, for this flow?

Your answerSelect all correct options. You can choose more than one.

A.



and



B.



and



C.



and



D.



and



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Question 36

Open question

XE-BNAT2 marksNeeds review

A water jet (density = 1000 kg/m



) is approaching a vertical plate, having an orifice at the center, as shown in the figure. While a part of the jet passes through the orifice, remainder flows along the plate. Neglect friction and assume both the inlet and exit jets to have circular cross-sections. If



m/s,



mm and



mm, magnitude of the horizontal force (in N, rounded off to one decimal place) required to hold the plate in its position is __________.



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