22 + Interview Questions in Design Process Overview in Aircraft Design Page 1 InterviewSolution

1.	Which of the following is a correct pair?(a) Testing major parts for fabrication – Conceptual Design(b) Testing major parts for fabrication – Detail Design(c) Testing major parts for fabrication – Preliminary Design(d) Testing major parts for fabrication – Initial DesignThe question was asked in exam.Asked question is from Phases in chapter Design Process Overview of Aircraft Design
Answer» Correct option is (b) Testing major parts for fabrication – Detail DESIGN The best explanation: The Detail design is the final stage of any Aircraft. Here, we CONSIDER the actual processes for designing from fabrication to MANUFACTURING. Conceptual and preliminary are the intermediate STAGES of an Aircraft design.

Discussion

2.	How Conceptual Design begins?(a) With predefined requirements or new concept(b) With Fabrication(c) With Lofting(d) With CFD testsThe question was asked in an internship interview.My question is from Conceptual Design Process topic in portion Design Process Overview of Aircraft Design
Answer» Right choice is (a) With PREDEFINED REQUIREMENTS or new concept Explanation: Conceptual Design is the first and foremost PHASE of Aircraft Design. Here, the rough design is being prepared BASED on certain requirements. In some cases it also initiated through new idea or concepts.

Discussion

3.	The estimation of weight, fuel weight etc. is done by ____ process.(a) sizing(b) drawing(c) lofting(d) draftingThis question was addressed to me during a job interview.This is a very interesting question from Conceptual Design Process topic in section Design Process Overview of Aircraft Design
Answer» The correct OPTION is (a) sizing Explanation: Sizing is the PROCESS to CALCULATE some performance parameters of aircraft. Lofting is modelling of skin. Drafting and DRAWING are linked together.

Discussion

4.	What is the initial phase of an Aircraft Design?(a) Conceptual Design(b) Preliminary Design(c) Detail Design(d) SizingThis question was posed to me in unit test.Question is from Phases topic in chapter Design Process Overview of Aircraft Design
Answer» CORRECT choice is (a) Conceptual Design Best EXPLANATION: Initial Phase of an Aircraft begins with the Conceptual Design. Preliminary design DEALS with the MODELLING. Detailed design is responsible for actual LAYOUT.

Discussion

5.	The requirements of an Aircraft will fall in ______ phase.(a) surface requirement(b) preliminary design(c) detail design(d) conceptual designThis question was addressed to me during a job interview.I'd like to ask this question from Phases topic in division Design Process Overview of Aircraft Design
Answer» Right choice is (d) conceptual design Easiest 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.

Discussion

6.	The main objective of the Preliminary stage is ______(a) manufacture(b) fabrication(c) first order sizing(d) loftingI had been asked this question in quiz.I'm obligated to ask this question of Phases in division Design Process Overview of Aircraft Design
Answer» The correct OPTION is (d) lofting Explanation: Lofting is one of the MAIN OBJECTIVES of the preliminary DESIGN. Manufacturing and Fabrication are part of the Detail Design. First order sizing is DONE during the conceptual stage.

Discussion

7.	Can we use similar design phases for an Airplane and for a Helicopter?(a) True(b) FalseThis question was addressed to me during an interview.The query is from Phases topic in section Design Process Overview of Aircraft Design
Answer» The correct ANSWER is (a) True Explanation: There are 3 phases of any Aircraft Design. These 3 phases are conceptual, preliminary and DETAIL designing. The Airplane and HELICOPTER both FALL into the category of Aircraft so the phases will be SIMILAR but with modification as per requirements.

Discussion

8.	What is the function of ‘first order sizing’?(a) To provide data for initial layout(b) To crate lofting(c) To test model in Fluent(d) To provide manufacturingI got this question by my college professor while I was bunking the class.This interesting question is from Conceptual Design Process topic in chapter Design Process Overview of Aircraft Design
Answer» Correct choice is (a) To provide DATA for initial layout The best 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.

Discussion

9.	The whole Design philosophy of an Aircraft is termed as _____(a) design wheel(b) anatomy(c) design evaluation(d) sizingThis question was addressed to me in an online interview.The question is from Phases in division Design Process Overview of Aircraft Design
Answer» The correct choice is (a) design WHEEL For explanation: The whole Design philosophy of an Aircraft is CALLED Design Wheel. The design processes as per the design wheel are then DIVIDED into different phases of Aircraft design such as sizing.

Discussion

10.	The drawing which represents the rough idea of the actual design is called as ______(a) conceptual sketch(b) conceptual elevation(c) conceptual digit(d) conceptual parameterThis question was addressed to me in an online interview.The query is from Conceptual Design Process in section Design Process Overview of Aircraft Design
Answer» The correct answer is (a) CONCEPTUAL sketch To explain: Based on the general requirements, design engineer makes rough CALCULATIONS of different parameters during the STAGE of conceptual design. Based on the INITIAL estimation of WEIGHT and performance, engineers will draw a rough sketch having all the required details. Such rough drawing is called conceptual sketch.

Discussion

11.	Which of these cannot be considered as design requirement of prop engine?(a) Range(b) Endurance(c) Take-off and landing(d) Turbine TemperatureI have been asked this question in an interview for job.This interesting question is from Conceptual Design Process in division Design Process Overview of Aircraft Design
Answer» The correct choice is (d) Turbine Temperature For explanation I would say: A typical Prop ENGINE is reciprocating engine. Prop engine relies on the POWER produced through propeller. Range, take-off and landing, endurance etc. are affected by the power GENERATED by the Prop engine. If asked for Turbo-prop then, we can INCLUDE turbine as well.

Discussion

12.	Why do we use optimization after initial layout?(a) To provide lowest cost structure(b) To improve highest cost structure(c) To reduce effectivity(d) To lower efficiencyThis question was addressed to me during an interview for a job.This interesting question is from Conceptual Design Process topic in division Design Process Overview of Aircraft Design
Answer» Correct option is (a) To PROVIDE lowest COST structure For explanation I would say: OPTIMIZATION techniques are USED to provide the lightest and most cost effective structure. In other WORDS, it is used to check whether my design is best for given requirements, for given cost constraints.

Discussion

13.	The Configuration layout is revised after optimization and experiences number of iterations before being finalized for Preliminary Design.(a) True(b) FalseI got this question by my school principal while I was bunking the class.This intriguing question comes from Conceptual Design Process topic in division Design Process Overview of Aircraft Design
Answer» Correct ANSWER is (a) True Easy explanation: If configuration layout is found to be imperfect during optimization then this layout is revised and this process is iterative. It will go to a number of iteration before it passes through the optimization STAGE. Once, the OPTIMIZED DESIGN is PREPARED then it can proceed further.

Discussion

14.	If design is carried out in CAD software then what should be the scale of design?(a) Full Scale(b) Half Scale(c) Quarter Scale(d) Tenth ScaleThis question was posed to me by my college director while I was bunking the class.This intriguing question originated from Conceptual Design Process in chapter Design Process Overview of Aircraft Design
Answer» CORRECT CHOICE is (a) Full Scale To explain I would say: If designer is using computer aided design software then, they are REQUIRED to design the full scale model. If engineer is using pen-paper then, the APPROPRIATE scale is required to DRAW the drawing for example, 1/15^th scale.

Discussion

15.	Which of these is not part of the Conceptual Design phase?(a) Specifications and Requirements(b) Conceptual Drawing(c) First weight estimation(d) LoftingThis question was addressed to me during an online exam.I want to ask this question from Phases in chapter Design Process Overview of Aircraft Design
Answer» The correct OPTION is (d) Lofting Best explanation: The Conceptual Design is the first phase of Design. In this phase we are concerned about-What are the REQUIREMENTS? What should be the WEIGHT? Will my design fly? First-order Sizing ETC.

Discussion

16.	The aim of the Preliminary Design stage is to make the company ready for the full scale development.(a) True(b) FalseI had been asked this question in homework.Origin of the question is Phases topic in portion Design Process Overview of Aircraft Design
Answer» Right choice is (a) True To explain: Once, the Conceptual design stage is COMPLETED, NEXT stage is Preliminary design. It tests and analyzes the finalized conceptual drawing. If all the parameters met the design criteria then, the final STEP of this stage is to MAKE company ready for the full scale development.

Discussion

17.	The three view drawing which shows arrangements of parts during conceptual design is called as _____(a) lofting(b) planning(c) first order sizing(d) analyzingThe question was asked in final exam.This is a very interesting question from Conceptual Design Process topic in portion Design Process Overview of Aircraft Design
Answer» Correct answer is (b) planning For explanation I would say: 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.

Discussion

18.	Civil and military requirements are same for Conceptual Design.(a) True(b) FalseI have been asked this question in an interview for internship.I would like to ask this question from Conceptual Design Process topic in section Design Process Overview of Aircraft Design
Answer» The correct choice is (b) False The explanation: Often civil and military requirements are different from each other. Civil Aircraft are designed for less CONTROLLABILITY while military aircrafts are made less stable. THRUST requirements are ALSO different for both.

Discussion

19.	Which are the phases of Aircraft Design process?(a) Conceptual Design only(b) Conceptual Design, Preliminary Design and Detail Design(c) Only Preliminary Phase(d) Only Detail Design PhaseThe question was posed to me during an online exam.My question comes from Phases in chapter Design Process Overview of Aircraft Design
Answer» Right option is (a) CONCEPTUAL DESIGN only Explanation: Aircraft design process can be BROKEN into three MAJOR phases. These phases are Conceptual Design, Preliminary Design and Detail Design. Each phase deals with DISTINCT subjects.

Discussion

20.	What is meant by the term Lofting?(a) Specifications and Requirements(b) Conceptual Drawing(c) Mathematical modelling of the skin(d) Trade study specificationsI have been asked this question in quiz.I'd like to ask this question from Phases in section Design Process Overview of Aircraft Design
Answer» Correct option is (c) Mathematical modelling of the SKIN The explanation is: Lofting is defined as the mathematical modelling the OUTER layer of airframe i.e., skin of Aircraft. Lofting is nothing but defining the SHAPE of the FUSELAGE and overall aircraft. It is ONE of the main objectives of the Preliminary Design.

Discussion

21.	Which of the following is the correct pair in chronological order?(a) Detail Design-Preliminary Design-Conceptual Design(b) Conceptual Design-Preliminary Design-Detail Design(c) Conceptual Design-Detail Design-Preliminary Design(d) Preliminary Design-Detail Design-Conceptual DesignThis question was addressed to me in an online quiz.The query is from Phases in division Design Process Overview of Aircraft Design
Answer» The correct option is (b) Conceptual Design-Preliminary Design-Detail Design The EXPLANATION: The Overall design process of an Aircraft goes through 3 distinct phases in sequence. Any Aircraft is designed based on specific CRITERIA which are called as requirements of Aircraft. Hence, the correct pair in CHRONOLOGICAL ORDER is Conceptual Design-Preliminary Design-Detail Design.

Discussion

22.	Which of the design phase is shown in below diagram?(a) Conceptual Design(b) Preliminary Design(c) First order sizing(d) Detail DesignI got this question during an interview.This interesting question is from Phases in portion Design Process Overview of Aircraft Design
Answer» Correct CHOICE is (d) Detail Design To explain: CONCEPTUAL Design stage begins with requirements. Preliminary deals with lofting and TESTING. Detail Design deals with the actual MANUFACTURING process in which the location and SIZE of rivets will be finalized as per requirements.

Discussion

Explore topic-wise InterviewSolutions in .

How Conceptual Design begins?(a) With predefined requirements or new concept(b) With Fabrication(c) With Lofting(d) With CFD testsThe question was asked in an internship interview.My question is from Conceptual Design Process topic in portion Design Process Overview of Aircraft Design

The estimation of weight, fuel weight etc. is done by ____ process.(a) sizing(b) drawing(c) lofting(d) draftingThis question was addressed to me during a job interview.This is a very interesting question from Conceptual Design Process topic in section Design Process Overview of Aircraft Design

What is the initial phase of an Aircraft Design?(a) Conceptual Design(b) Preliminary Design(c) Detail Design(d) SizingThis question was posed to me in unit test.Question is from Phases topic in chapter Design Process Overview of Aircraft Design

The main objective of the Preliminary stage is ______(a) manufacture(b) fabrication(c) first order sizing(d) loftingI had been asked this question in quiz.I'm obligated to ask this question of Phases in division Design Process Overview of Aircraft Design

Can we use similar design phases for an Airplane and for a Helicopter?(a) True(b) FalseThis question was addressed to me during an interview.The query is from Phases topic in section Design Process Overview of Aircraft Design

The whole Design philosophy of an Aircraft is termed as _____(a) design wheel(b) anatomy(c) design evaluation(d) sizingThis question was addressed to me in an online interview.The question is from Phases in division Design Process Overview of Aircraft Design

The aim of the Preliminary Design stage is to make the company ready for the full scale development.(a) True(b) FalseI had been asked this question in homework.Origin of the question is Phases topic in portion Design Process Overview of Aircraft Design

Civil and military requirements are same for Conceptual Design.(a) True(b) FalseI have been asked this question in an interview for internship.I would like to ask this question from Conceptual Design Process topic in section Design Process Overview of Aircraft Design

What is meant by the term Lofting?(a) Specifications and Requirements(b) Conceptual Drawing(c) Mathematical modelling of the skin(d) Trade study specificationsI have been asked this question in quiz.I'd like to ask this question from Phases in section Design Process Overview of Aircraft Design

Which of the design phase is shown in below diagram?(a) Conceptual Design(b) Preliminary Design(c) First order sizing(d) Detail DesignI got this question during an interview.This interesting question is from Phases in portion Design Process Overview of Aircraft Design