Engineering Sciences
GATE XE topic:applied-science PYQs
Build your understanding with focused practice from past exam papers.
Questions 411–420 of 1772. Imported answers require independent review unless marked reviewed.
Question 39
Open questionXE-BNAT2 marksNeeds review
Consider the steady, incompressible flow of water in a horizontal pipe of constant diameter 1 m with an inlet velocity of 12 m/s.
As shown in figure, water is lost through a circular hole of diameter 0.6 m at the rate of 4.53 m
/s. The outlet velocity (in m/s, rounded off to two decimal places) of water in the pipe is ______.Log in to check the answer
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Open questionXE-BNAT2 marksNeeds review
The axial velocity profile of a laminar, incompressible and fully-developed flow in a circular pipe of radius (R) is given as
, where
,
,
, and
are radial direction, axial direction, fluid viscosity, and pressure, respectively. If the average velocity of the flow is given by
, then the value of K (answer in integer) is _____.Log in to check the answer
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Open questionXE-BNAT2 marksNeeds review
The velocity potential function in a two-dimensional flow field is given by
m²/s where
per second and
per second. The magnitude of the velocity (in m/s, answer in integer) at
m,
m is _____.Log in to check the answer
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Open questionXE-BNAT2 marksNeeds review
Consider the incompressible, steady and irrotational flow through a concentric reducer in a horizontal pipeline. The pipe diameter reduces from
cm to
cm as shown in figure. The pressure at position 1 and position 2 of the reducer is
kPa and
kPa, respectively. The specific weight of fluid is 7 kN/m³. Acceleration due to gravity is 10 m/s².
Neglecting frictional effects, the mass flow rate (in kg/s, rounded off to two decimal places) of the fluid through the reducer is _____.
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Open questionXE-BNAT2 marksNeeds review
Consider the incompressible fluid flow over a flat plate with a free stream velocity,
m/s. The fluid kinematic viscosity is
m²/s and density is 1 kg/m³. The velocity profile within the boundary layer at any location
is given by
, where boundary layer thickness,
. The local wall shear stress at
m from the leading edge is _____ × 10⁻³ N/m² (rounded off to two decimal places).Log in to check the answer
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Open questionXE-CMCQ1 markNeeds review
The correct combination of phases in the one-component H
O phase diagram, as given below, is 
Your answerChoose one option.
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Mechanical behaviour of a crystalline ceramic material is best described as
Your answerChoose one option.
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Differential scanning calorimetry involves measurement of
Your answerChoose one option.
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Open questionXE-CMCQ1 markNeeds review
In ball milling of ceramic powder, selection of grinding media depends on the __________ difference between grinding media and powder particles.
Your answerChoose one option.
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Open questionXE-CMCQ1 markNeeds review
Which one of the following unit cell parameters represents a tetragonal crystal system?
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