Aerospace Engineering
2025 · Paper 1
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Complete GATE AE 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 64–65 of 65. Imported answers require review unless explicitly marked reviewed.
Question 64
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An ideal ramjet with an optimally expanded exhaust is travelling at Mach 3. The ambient temperature and pressure are 260 K and 60 kPa, respectively. The inlet air mass flow rate is 50 kg/s. Exit temperature of the exhaust gases is 700 K. Fuel mass flow rate is negligible compared to air mass flow rate. Gas constant is R= 287 J/kg/K, and specific heat ratio is
. The thrust generated by the engine is ____ kN (rounded off to one decimal place).Log in to check the answer
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Open questionAENAT2 marksNeeds review
A single-stage axial compressor, with a 50 % degree of reaction, runs at a mean blade speed of 250 m/s. The overall pressure ratio developed is 1.3. Inlet pressure and temperature are 1 bar and 300 K, respectively. Axial velocity is 200 m/s. Specific heat at constant pressure,
J/kg/K and specific heat ratio,
. The rotor blade angle at the outlet is ____ degrees (rounded off to two decimal places).Log in to check the answer
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