Engineering Sciences
2019 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2019 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 37–39 of 175. Imported answers require review unless explicitly marked reviewed.
Question 16
Open questionXE-BMCQ2 marksNeeds review
A fluid with constant density of
flows past a semi-cylindrical structure with a freestream velocity of
as shown in the figure below. The difference in static pressure between points P and Q is
. If the gravitational acceleration
is
and the flow is assumed to be potential, what is the radius
(in m) of the semi-cylindrical structure? 
Your answerChoose one option.
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Open questionXE-BNAT2 marksNeeds review
The mercury manometer shown in the figure below is connected to a water pipe at one end while the other end is open to the atmosphere. The density of water is
, the specific gravity of mercury is 13.6 and the gravitational acceleration
is
. The gage pressure
(in
, rounded off to 2 decimal places) in the water pipe is ______. 
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 18
Open questionXE-BNAT2 marksNeeds review
Water (
,
) flows through a smooth circular pipe of radius
. If the flow Reynolds number is 100, then the pressure drop (in
, rounded off to 2 decimal places) over a length of 5 m will be ______.Log in to check the answer
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