Aerospace Engineering
2017 · Paper 1
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Complete GATE AE 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 34
Open questionAENAT2 marksNeeds review
A trace from the schlieren photograph of the flow around a corner reveals the edges of the expansion fan as shown below. The leading and trailing edges of the expansion fan make the angles as shown. Assuming
, the angle of the expansion fan (in degrees) is _________ (in two decimal places)Prandtl Meyer function is given by
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A strong normal shock wave, with a pressure ratio of 29 across it, is travelling into stationary air (
) at T = 280 K in a straight duct (see figure). The magnitude of the velocity of the air induced behind the shock wave is ____________ m/s. (round to nearest integer)(Gas constant = 287 J/kg.K; Shock wave relations:
Pressure ratio:
; Density ratio:
)
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In the figure below, water exits from a nozzle into atmospheric pressure of 101 kPa. If the exit velocity is
m/s and friction is neglected, the magnitude of the axial force on the flange at location 1 required to keep the nozzle attached to the pipe is ____________ N (round to nearest integer).
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