AE4446 Practice Exam

Exercises one.pnum two.pnum Surname,Firstname AirportandCargoOperations(AEfour.pnumfour.pnumfour.pnum6) Exam one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum two.pnum three.pnum four.pnum five.pnum 6 seven.pnum 8 nine.pnum zero.pnum one.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnumone.pnum

Multiplechoicequestions one.pnump one.pnuma What is the best terminal configuration for airports that mostly handle transfer passengers? a Linear piers b Finger piers c Midfield linear d Midfield X e I do not know one.pnump one.pnumb Which of the following airports features a linear pier terminal? a AMS b MUN c DEN d ORD e I do not know one.pnump one.pnumc Let us consider a passenger area in an airport terminal characterized by a 300 m 2 . If we consider an average occupancy of 1 . 5 m 2 slash.left pax and a 6 min dwell time, what is the expected hourly capacity ( pax h ) of such area? a two.pnum,two.pnumzero.pnumzero.pnum b one.pnum,five.pnumzero.pnumzero.pnum c one.pnum,8zero.pnumzero.pnum d two.pnum,zero.pnumzero.pnumzero.pnum e I do not know one.pnump one.pnumd On average, what is the percentage of total land occupied by the airside of an airport? a 8zero.pnum% b nine.pnumzero.pnum% c seven.pnumzero.pnum% d 6zero.pnum% e I do not know two.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnumtwo.pnum

one.pnump one.pnumi How does a higher temperature affect the required runway length for a takeoff? a It decreases lift, hence requiring a longer runway b It increases lift, hence requiring a shorter runway c It decreases lift, hence requiring a shorter runway d It increases lift, hence requiring a longer runway e I do not know one.pnump one.pnumj On average, for every 300 m of increase in airport elevation, how should a reference runway length be modified? a It should be decreased by five.pnum% b It should be decreased by seven.pnum% c It should be increased by five.pnum% d It should be increased by seven.pnum% e I do not know one.pnump one.pnumk What is the definition of the TakeOff Distance Available (TODA)? a Length of runway declared available for ground run of airplane taking off, plus length of stopway, if available b Length of runway declared available for ground run of airplane taking off c Length of runway declared available for ground run of airplane landing d Length of runway declared available for ground run of airplane taking off, plus length of clearway, if available e I do not know one.pnump one.pnuml For a regular landing, what is the percentage of the Landing Distance Available (LDA) before which an aircraft should be able to come to a full stop? a 6zero.pnum% b five.pnumzero.pnum% c seven.pnumzero.pnum% d 8zero.pnum% e I do not know four.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnumfour.pnum

one.pnump one.pnumm A single runway airport is characterized by the following time separation matrix T = ⎡ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎣ 60 70 80 90 100 85 80 90 110 ⎤ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎦ (values in seconds) and sequence probability matrix P = ⎡ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎣ 0 . 25 0 . 10 0 . 00 0 . 00 0 . 25 0 . 10 0 . 05 0 . 00 0 . 25 ⎤ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎦ associated to arrivals for the three aircraft classes the airport can accommodate. If the runway is used for arrivals only, what is the expected hourly throughput (rounded to the next integer)? a three.pnumfive.pnum b five.pnumtwo.pnum c four.pnumone.pnum d four.pnumseven.pnum e I do not know one.pnump one.pnumn Which of the following is generally not a main stakeholder in the Gate Assignment Problem (GAP)? a Ground handling operators b Airline operators c Passengers d Airport operators e I do not know one.pnump one.pnumo In the Gate Assignment Problem (GAP), let us consider parameter P 0 ,i , which represents the number of passengers from the check-in area to aircraft i ∈ A . What does the term ∑ i ∈A P 0 ,i represent? a The overall number of outbound passengers b The overall number of transfer passengers c The overall number of inbound passengers d The overall number of considered passengers e I do not know one.pnump one.pnump In the Gate Assignment Problem (GAP), what can be said about the objective function? a Passenger-centric objectives are generally preferred b Airport-centric objectives are generally preferred c Changing the objective severely changes the constraints of the GAP d There is generally no standard objective e I do not know five.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnumfive.pnum

one.pnump one.pnumr Let us consider the following sign on a taxiway system (Credit: https://forums.x-plane.org/ind...) What is the left-most part of the sign telling us? a The aircraft will be crossing taxiway R from both sides b The aircraft is on taxiway S c The aircraft will be on taxiway Q if it continues straight d All of the above e I do not know seven.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnumseven.pnum

one.pnump one.pnums In the Aircraft Routing Problem (ARP) presented during the lecture, what is the role of constraint set z i,j,u + z j,i,u = 1 ∀( i,j ) ∈ F × F ,u ∈ N i ∩ N j ? a It ensures time separation between aircraft b It defines the sequence of aircraft for every shared node along their paths c It avoids head-on collisions d It prevents aircraft from overtaking e I do not know one.pnump one.pnumt In the air cargo supply chain, what is the stakeholder playing the role of the interface between the landside and the airside? a Ground handler b Freight forwarder c Airline d Shipper e I do not know one.pnump one.pnumu What are the main decisions that the Buildup Scheduling Problem (BSP) is addressing? a Position of each ULD in the intended aircraft b Assignment to and positioning of items into ULDs c Time of consolidation and workstation assignment of ULDs d Selection of type and number of ULDs to be carried on board e I do not know one.pnump one.pnumv In the ULD Build-up scheduling under Space and Personnel constraints (ULDSP) problem discussed in class, what is the only capacity constraint that is explicitly considered? a Storage space of shipments prior to consolidation b Number of ULD workstations available c Storage space of consolidated ULDs d Storage space of empty ULDs e I do not know 8 / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumzero.pnum8

one.pnump one.pnumz Let us consider the following figure, depicting two items in a bin in the context of the horizontal two.pnumD Bin Packing Problem (two.pnumDBPP). What are the values of l i,j and b i,j , respectively? a zero.pnum and one.pnum b one.pnum and one.pnum c one.pnum and zero.pnum d zero.pnum and zero.pnum e I do not know one.pnumzero.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumone.pnumzero.pnum

one.pnump one.pnumaa On average, what is the percentage of carbon dioxide emissions attributable to air travel? a three.pnum% b one.pnum% c 8% d one.pnumtwo.pnum% e I do not know one.pnump one.pnumab Which technologies should be viable options for more environmentally sustainable air travel with long-range aircraft (> two.pnumfive.pnumzero.pnum pax) after two.pnumzero.pnumfive.pnumzero.pnum? a Sustainable aviation fuels and electric engines b Hydrogen and electric engines c Sustainable aviation fuels and hydrogen d Hydrogen and nuclear power e I do not know one.pnump one.pnumac When it comes to noise mitigation, what is the best descent approach? a Continuous descent b Step-down descent c Trimmed descent d Leveled descent e I do not know one.pnump one.pnumad When it comes to designing departure/arrival aircraft trajectories that are efficient both in terms of carbon dioxide emissions and noise pollution, which of the following statements is generally true? a It is not possible to improve one objective without worsening the other b Carbon dioxide emissions minimization is generally more important c Most airports are currently already implementing quite optimal trajectories d Noise pollution is more easily mitigated in multi-runway airports e I do not know one.pnumone.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumone.pnumone.pnum

↷ x x x x x x x x x x x x X one.pnumzero.pnump two.pnumb In the context of single runway arrival operations, the time separation T ij between a leading (i) and trailing (j) aircraft was defined as follows T ij = ⎧ ⎪ ⎪ ⎨ ⎪ ⎪ ⎩ max bracketleft.alt2 r + S ij v j − r v i ,o i bracketright.alt2 v i ≥ v j max bracketleft.alt2 S ij v j ,o i bracketright.alt2 v i < v j Define all the terms present in the equations and describe the two cases (seven.pnum pts). Describe how T ij values for all aircraft class combinations can be used to estimate the hourly throughout of the runway (three.pnum pts). x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x X ↶ one.pnumthree.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumone.pnumthree.pnum

↷ x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x X one.pnumzero.pnump two.pnumc Let us consider the following one.pnumD Bin Packing Problem (one.pnumD BPP) MILP formulation Define the sets, parameters, and decision variables involved (three.pnum pts). Describe the objective function and all constraints (five.pnum points). Define three potential types of capacity S b with practical examples (two.pnum pts). x x x x x x x x x x x x x x x x X ↶ one.pnumfour.pnum / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumone.pnumfour.pnum

This page is left blank intentionally one.pnum6 / one.pnum6 zero.pnumzero.pnumzero.pnumone.pnum.pdf zero.pnumtwo.pnumtwo.pnumzero.pnumtwo.pnumseven.pnum6one.pnumone.pnum6