Aerospace Engineering > GATE 2011 > Engine Performance
A rocket engine is tested on a test bed under the ideal condition of fully expanded jet. The exhaust
velocity is 2 km/s through a nozzle of area 2.5 m2 The mass flow rate is 200 kg/s. The specific
impulse of the propellant and the thrust developed respectively are (assume g=9.81 m/s2)
A
175.87 s and 200 kN
B
203.87 s and 400 kN
C
231.87 s and 200 kN
D
280.87 s and 400 kN

Correct : b

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