Janardan Rai Nagar Rajasthan Vidyapeeth 2007 B.Tech Aeronautical Engineering THEORY OF JET PROPULSION - Question Paper

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BACHELOR IN TECHNOLOGY
(SEMESTER - V) (AERONAUTICAL)
BTAE1-THEORY OF JET PROPULSION
TIME: 03 HOURS MAX. MARKS: 75

GENERAL INSTRUCTIONS:
1. Question paper is divided into 3 groups
2. Each group is of 25 marks every
3. Figure to the right in bracket shows mark
4. Assume suitable data if necessary

GROUP A: ans any 3 ques.. ques. No. one is compulsory.
Q.1 Explain the open cycle gas turbine? (05)
Q.2 In a gas turbine plat the air is compressed in a single stage compressor from one bar to nine bar and from an initial temperature of 300 k. The identical air is then heated to a temperature of 800 k and then expanded in the 2nd turbine. obtain the maximum power that can be found from the installation if the mass of air circulated per 2nd is 2kg. Take cp=1kj/kg.k.? (10)
Q.3 Explain the pressure relief value kind oil system in the jet engines. (10)
Q.4 Explain construction details of turbine with sketch? (10)
Q.5 Explain the combustion process of Jet engine with sketch? (10)
GROUP B: ans any 3 ques.. ques. No. six is compulsory.
Q.6 What are assumptions of thermal efficiency of an ideal gas turbine
plant? (05)
Q.7 Consider an ideal jet population cycle in which air enters the
compressor at one atm, 15°c. The pressure leaving the compressor is
5 atm and the maximum temperature is 870°c. The air expounds in
the turbine to work just equal to the compressor work on leaving the turbine the air expands reversibly and adiabatically in a nozzle to 1
atm. determine the velocity of the air leaving the nozzle. (10)
Q.8 Explain the air starting system in jet engine with sketch. (10)
Q.9 Explain an AC ignition unit with circuits. (10)
Q.10 Explain the ground running danger zone with simple sketch. (10)

Earning:   Approval pending.