Engineering Sciences
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2025 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 37
Open questionXE-BNAT2 marksNeeds review
Driven by a pressure gradient of 100 kPa/m, a fluid of dynamic viscosity 0.1 Pa.s flows between two fixed infinite large parallel plates under steady, incompressible, and fully developed laminar conditions. The average velocity of the flow is 2 m/s. The gap between the parallel plates in mm (rounded off to 2 decimal places) is ________
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Open questionXE-BNAT2 marksNeeds review
An incompressible fluid is flowing between two infinitely large parallel plates separated by 5 mm distance. The bottom plate is stationary and the top plate is moving at a constant velocity of 5 mm/s in the direction parallel to the bottom plate. The flow of the fluid between the plates is steady, two-dimensional, laminar, and the variation of fluid velocity is linear between the plates. A square fluid element of 1 mm side is considered at equal distance from the plates in the flow field such that one of its sides is parallel to the plates. The magnitude of circulation in mm
/s (in integer) along the edges of the square fluid element is ________Log in to check the answer
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Open questionXE-BNAT2 marksNeeds review
Consider, a kite weighing 100 grams as essentially a rigid flat plate making an angle 8° with the horizontal and having a planform area of 0.045 m
when exposed to horizontal parallel wind of 60 km/h. The thread string of the kite makes an angle 45° with the horizontal. A tension of 450 grams in the thread is necessary to float the kite steadily. Take air density as 1.2 kg/m
and gravitational acceleration as 9.81 m/s
. The lift coefficient (
) associated with the air flow around steadily floating kite (rounded off to 2 decimal places) is ________Log in to check the answer
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