GATE MT 2025 Paper 1 — page 11

Questions 31–33 of 65. Imported answers require review unless explicitly marked reviewed.

Consider a fully developed, steady, one-dimensional, laminar flow of a Newtonian liquid through a pipe. The maximum velocity in the pipe is proportional to which of the following quantities?

Given:

is the difference between the outlet and inlet pressure,

is the dynamic viscosity of the liquid, and

and

are radius and length of the pipe, respectively.

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

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The hydrostatic stress for the stress tensor provided below is _____ MPa (in integer).

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For an application where the Reynolds number is to be kept constant, a liquid with a density of 1 g cm

and viscosity 0.01 Poise results in a characteristic speed of 1 cm s

. If this liquid is replaced by another with a density of 1.25 g cm

and viscosity of 0.015 Poise, the characteristic velocity will be _____ cm s

(rounded off to one decimal place). Assume the characteristic length of the flow to be the same in both cases.

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2025 · Paper 1

Question 31

Question 32

Question 33