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H192096 Pages: 2

system
What is restrictive and unrestrictive modes burning of solid propellant.
PART C
Answer any four full questions, each carries 10 marks.
Explain the working of pressure-fed and pump-fed LPR?

Explain the working of pyrogen igniter.
List out any 5 desirable properties of a liquid propellant
What do you mean by Combustion instability in Rocket engines

Explain the different methods of cooling of thrust chambers and nozzles in Liquid
propellant Rocket engine.

A rocket-propelled vehicle has a mass ratio of 0.10. The specific impulse of the
rocket is 2500Ns/kg. If the rocket burns for 60s, find the velocity and altitude
attained by the vehicle. Assume vertical trajectory and negligible drag, g=9.81
11/82.

Explain the major components of a typical rocket test facility.

Explain the safety provisions in a modern rocket test facility.
Derive an expression for altitude gain in a powered flight.

List out at least eight physical quantities measured in rocket testing.

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