Aerospace Engineering
GATE AE format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 171–180 of 326. Imported answers require independent review unless marked reviewed.
Question 4
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The figure shows schematics of wave patterns at the exit of nozzles A and B operating at different pressure ratios.
Nozzles A and B, respectively, are said to be operating in:
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The combustion process in a turbo-shaft engine during ideal operation is:
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How does the specific thrust of a turbojet engine change for a given flight speed with increase in flight altitude?
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How does the propulsion efficiency of a turbofan engine, operating at a given Mach number and a given altitude, change with increase in compressor pressure ratio?
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A solid propellant rocket producing 25 MN thrust is fired for 150 seconds. The specific impulse of the rocket is 2980 Ns/kg. How much propellant is burned during the rocket operation?
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The shape of a supersonic diffuser that slows down a supersonic flow to subsonic flow is
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Uniaxial tension test (see the figure) is conducted on two different samples prepared with homogeneous, isotropic materials. One of the materials is brittle, whereas the other is ductile.
Assuming that there is no stress concentration at loading points, the failure would initiate:
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For the state of stress as shown in the figure, what is the orientation of the plane with maximum shear stress with respect to the x-axis?
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Let
be the true airspeed of an aircraft flying at a certain altitude where the density of air is
, and
be the equivalent airspeed. If
is the density of air at sea-level, what is the ratio
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variation for a certain aircraft is shown in the figure. Which one of the following statements is true for this aircraft? 
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