Aerospace Engineering Question:

Why the fuselage of the pressurized aircraft is made of circular cross section?
Can we put engines on the end of a wing? If not, then why?
What is ram jet?
Why you would like to join the aviation industry?
Doesn't simplification of complex honeycomb designed for thermal protection system of are usable launch vehicle jeopardize the accuracy of results?
Why insulating tiles on reusable launch vehicles must be isolated from one another?
Are thermal protection systems of space craft's commonly composed of one panel or a collection of smaller tiles?
Why are all shear loads and twisting moments set to zero for the preliminary design phase of TPS?
How difficult is to mould and shape graphite epoxies compared with alloys or ceramic that may be used for thermal protective applications?
What is the highest temperature the space shuttle undersurface experiences during its mission?