The requirements of an Aircraft will fall in ______ phase.

conceptual design

detail design

preliminary design

surface requirement

Correct Answer : conceptual design

Explanation : The requirements of an Aircraft is very basic question in whole process. Such basic questions are part of the conceptual design phase. Sizing and detail data will be put at later stages.

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The three view drawing which shows arrangements of parts during conceptual design is called as _____

lofting

analyzing

planning

first order sizing

Correct Answer : Option (C) : planning

Explanation : First order sizing is nothing but a three vie drawing base on initial estimated data. The three vie drawing can highlight vital information such as undercarriage location etc.

What is the function of 'irst order sizing'?

To provide data for initial layout

To crate lofting

To test model in Fluent

To provide manufacturing

Correct Answer : Option (A) : To provide data for initial layout

Explanation : During the conceptual stage we make a rough sketch called a conceptual sketch. With the help of it we can provide initial estimation of some parameters such as aerodynamics, weight etc. This initial estimation will provide data for the initial layout. Thus, it is called as first order sizing.

The estimation of weight, fuel weight etc. is done by ____ process.

lofting

drafting

drawing

sizing

Correct Answer : Option (D) : sizing

Explanation : Sizing is the process to calculate some performance parameters of aircraft. Lofting is modelling of skin. Drafting and drawing are linked together.