1) What is the initial phase of an Aircraft Design? a. Conceptual Design b. Preliminary Design c. Detail Design d. Sizing
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2) The whole Design philosophy of an Aircraft is termed as _____ a. design wheel b. anatomy c. design evaluation d. sizing
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3) The requirements of an Aircraft will fall in ______ phase. a. surface requirement b. preliminary design c. detail design d. conceptual design
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4) 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 Phase
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5) 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 Design
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6) Can we use similar design phases for an Airplane and for a Helicopter? a. True b. False
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7) 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 Design
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8) Which of these is not part of the Conceptual Design phase? a. Specifications and Requirements b. Conceptual Drawing c. First weight estimation d. Lofting
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9) The aim of the Preliminary Design stage is to make the company ready for the full scale development. a. True b. False
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10) The main objective of the Preliminary stage is ______ a. manufacture b. fabrication c. first order sizing d. lofting
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11) What is meant by the term Lofting? a. Specifications and Requirements b. Conceptual Drawing c. Mathematical modelling of the skin d. Trade study specifications
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12) How Conceptual Design begins? a. With predefined requirements or new concept b. With Fabrication c. With Lofting d. With CFD tests
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13) Civil and military requirements are same for Conceptual Design. a. True b. False
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14) Which of these cannot be considered as design requirement of prop engine? a. Range b. Endurance c. Take-off and landing d. Turbine Temperature
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15) 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 parameter
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16) The estimation of weight, fuel weight etc. is done by ____ process. a. sizing b. drawing c. lofting d. drafting
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17) 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 manufacturing
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18) The three view drawing which shows arrangements of parts during conceptual design is called as _____ a. lofting b. planning c. first order sizing d. analyzing
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19) 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 Scale
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20) 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 efficiency
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21) The Configuration layout is revised after optimization and experiences number of iterations before being finalized for Preliminary Design. a. True b. False
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22) The subsequent step after the requirements in conceptual design phase is _____ a. design take-off gross weight b. control c. stability d. lofting
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23) The “Design take-off gross weight” and “maximum take-off weight” are always interchangeable. a. True b. False
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24) Design take-off gross weight includes ______ a. only fuel weight b. only crew weight c. only payload weight d. crew, payload and fuel weights
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25) Avionics systems are an example of ____ weight. a. empty b. crew c. passenger d. payload
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26) Take-off gross weight of an aircraft is summation of _____ a. empty and payload weight b. fuel, payload, crew, empty and miscellaneous weight c. fuel and crew weight d. only passenger and crew weight
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27) In general, the fuel weight is represented by a fraction of total take-off weight. a. True b. False
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28) A general aviation aircraft is flying with crew load of 115lb, payload of 220lb and fuel weight of 100lb. Find out the design take-off gross weight of the aircraft, given 95lb empty weight. a. 530lb b. 241lb c. 435lb d. 500lb
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29) A jet airliner aircraft is flying with crew load of 150kg, payload of 520lb and fuel weight of 500lb. Find out the empty weight if design take-off gross weight of the aircraft is given 1525lb. a. 79kg b. 79lb c. 170lb d. 355lb
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30) Cessna 172R has total gross weight of the 1110.98kg with fuel capacity of 210 kg and weight of crew and passenger is 125kg. Find out empty weight fraction. a. 775.98kg b. 69.84kg c. 0.6984 d. 0.6984lb
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31) A Jet transport aircraft is flying with crew load of 175kg, payload of 1400kg and fuel weight of 500kg. Find out Fuel to empty weight fraction, if design take-off gross weight of the aircraft is 5600lb. a. 1.076 b. 0.1831 c. 0.196 d. 0.1418
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32) What is the typical range for empty weight fraction? a. 0.3-0.7 b. 0.1-0.125 c. 0.14-0.28 d. 0.25-0.27
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33) Which of the following is the correct pair? a. Empty weight fraction is similar to gross weight of the aircraft b. Empty weight fraction is inversely proportion to gross weight of the aircraft c. Empty weight fraction is directly proportion to gross weight of the aircraft d. Empty weight fraction is not related with the gross weight of the aircraft
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34) Which of the following pair is correct based on the empty weight fraction? a. Flying boat-0.77, Jet trainer-0.65 b. Flying boat-0.65, Jet trainer-0.77 c. Flying boat-0.45, Jet trainer-0.65 d. Flying boat-0.3, Jet trainer-1.0
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35) A military Aircraft should be designed to have ______ a. lowest possible empty weight fraction b. highest possible empty weight fraction c. empty weight fraction higher than 0.89 d. empty weight fraction unity
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36) Determine the corrections or otherwise of the following assertion [A] and reason [R]:
Assertion [A]: Flying boats have higher values of empty weight fraction than that of the military aircraft. Reason[R]: Military aircraft has to be lighter in weight. a. Both [A] and [R] are true and [R] is the correct reason for [A] b. Both [A] and [R] are true but [R] is not the correct reason for [A] c. [A] is true but [R] is false d. [A] is false but [R] is true
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37) Which of the following is true? a. Lowest possible empty weight fraction in practice is zero b. F-35 aircraft has the highest possible empty weight fraction c. Empty weight fraction will be different for different type of aircrafts d. Empty weight fraction is always same for each aircraft
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38) Variable sweep wings have higher empty weight fraction than that of the fixed sweep wing. a. True b. False
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39) Aircraft fuel weight does not include reserved fuel fraction. a. True b. False
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40) Total fuel weight of aircraft is ______ a. mission fuel only b. sum of mission fuel, reserve fuel and trapped fuel c. sum of trapped and mission fuel d. reserved fuel only
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