Engineering Sciences
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 31–33 of 175. Imported answers require review unless explicitly marked reviewed.
Question 31
Open questionXE-BMCQ2 marksNeeds review
Consider steady fully-developed incompressible flow of a Newtonian fluid between two infinite parallel flat plates. The plates move in the opposite directions, as shown in the figure. In the absence of body force and pressure gradient, the ratio of shear stress at the top surface (
) to that at the bottom surface (
) is 
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 32
Open questionXE-BMCQ2 marksNeeds review
A two-dimensional incompressible flow field is defined as,
where,
and
are constants. The dynamic viscosity of the Newtonian fluid is
. In the absence of body force, which among the following expressions represents the pressure gradient at the location
in the concerned flow field?Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 33
Open questionXE-BMCQ2 marksNeeds review
For a potential flow, the fluid velocity is given by
. The slope of the potential line at
isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer