Conceptual Sketch Sizing MCQ

Test your knowledge with important Conceptual Sketch Sizing MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Conceptual Sketch Sizing MCQs at Bissoy

• Keeping all other factors constant if only range of aircraft is increased then, what will be effect on the gross weight of aircraft?
  ক

  Gross weight will increase

  খ

  Will decrease

  গ

  Unchanged

  ঘ

  Not depended on range
• An aircraft has Crew and payload of 180kg. It has empty weight fraction of 0.48 and fuel weight is 0.7 times empty weight. What will be the gross weight of aircraft?
  ক

  2157lb

  খ

  215kg

  গ

  950kg

  ঘ

  1000lb
• Total take-off gross weight depends on _____
  ক

  fuel consumption only

  খ

  only on aerodynamic efficiency

  গ

  fuel, crew, payload and empty weight

  ঘ

  independent
• Following diagram is showing mission profile with different phases with mission segment fuel fraction as shown. If crew weight is 150kg, payload of 600kg and empty fraction of 0.495. Determine gross weight of the aircraft.
  ক

  4430kg

  খ

  39810kg

  গ

  4431lb

  ঘ

  38910lb
• Initial guess of gross weight will be same for every aircraft.
  ক

  True

  খ

  False
• An aircraft with crew and payload of 180kg is flying. If fuel weight fraction is 0.353 and empty weight fraction 0.481 then, what will be the gross weight of aircraft?
  ক

  2391kg

  খ

  2391lb

  গ

  1000kg

  ঘ

  1000lb
• What is the first step to estimate the gross weight W0?
  ক

  To find crew and payload weight so initial W0 can be guess

  খ

  To find proper lofting

  গ

  Drafting

  ঘ

  Directly finding take-off distance
• Which of the following is part of take-off weight estimation?
  ক

  Lofting

  খ

  Drafting

  গ

  Initial guess of take-off gross weight based on mission specifications

  ঘ

  Manufacturing part is first step
• Estimation of take-off weight is an iterative method.
  ক

  True

  খ

  False
• Fuel consumption during cruise is affected by wetted area.
  ক

  True

  খ

  False
• How will you determine climb mission weight fraction?
  ক

  Climb Endurance

  খ

  Loiter

  গ

  Always constant

  ঘ

  Cruise Speed
• What will be the weight fraction of the aircraft at final mission segment w.r.t. W0?
  ক

  Multiplication of individual weight fraction

  খ

  Division of individual weight fraction

  গ

  Addition of individual weight fraction

  ঘ

  Subtraction of individual weight fraction
• What will be the total fuel weight fraction for x-number of mission phases?
  ক

  Wf / W0 = 1 – (Wx / W0)

  খ

  Wf / W0 = 1 + (Wx / W0)

  গ

  Wf / W0 = 1 / (Wx / W0)

  ঘ

  Wf / W0 = 1 + (Wx / W0)
• Choose appropriate option for cruise mission leg weight fraction.
  ক

  Breguet endurance formula

  খ

  Breguet range formula

  গ

  Cruise invert method

  ঘ

  Breguet approximation
• An Aircraft has gross weight of 10000lb. At the end of the mission segment it has weight fraction as 0.985. Determine fuel consumed for this mission.
  ক

  150lb

  খ

  150kg

  গ

  60kg

  ঘ

  60lb
• Which of the following is part of the fuel-fraction method?
  ক

  Developing lofting

  খ

  Empty weight fraction

  গ

  Calculating individual mission segment weight fraction

  ঘ

  Finding volume ratio
• For given mission leg ‘n’, mission leg weight fraction is _____
  ক

  Wn / Wn-1

  খ

  Wn / Wn-2

  গ

  Wn-1 / Wn+1

  ঘ

  Wn / Wn+1
• What does the following diagram represents?
  ক

  Simple cruise mission profile

  খ

  Accelerated cruise

  গ

  Bomber mission

  ঘ

  Penetration strike
• Mission leg fuel fraction is defined by _____
  ক

  weight at end of the phase to that of at the begin

  খ

  weight at end of the phase to that of at the begin

  গ

  weight of phase at the begin

  ঘ

  weight at end of the phase
• Determine the corrections or otherwise of the following assertion and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true
  ক

  and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. ] Both and are true and is the correct reason for

  খ

  A

  গ

  A

  ঘ

  A
• A jet transport aircraft has fuel storage of 1200kg. It has completed taxi phase and preparing for take-off. At the end of the taxing, it has fuel fraction of 0.98. Determine how much fuel is available after taxing. Given take-off gross weight is 9000kg.
  ক

  1020kg

  খ

  180kg

  গ

  1800kg

  ঘ

  2240lb
• A prop-driven aircraft having fuel weight of 650kg. Now, aircraft is taxing on runway, after which it has fuel fraction of 0.975. Determine fuel used during taxing of aircraft, if W0 = 5000kg.
  ক

  225kg

  খ

  125kg

  গ

  221kg

  ঘ

  125.65lb
• An airliner with take-off gross weight of 2100kg is cruising with fuel weight fraction of 0.280. Then, what will be the weight of fuel (Wf)?
  ক

  588kg

  খ

  588lb

  গ

  90kg

  ঘ

  28lb
• Determine the corrections or otherwise of the following Assertion and reason : Assertion : Total fuel volume of aircraft is divided into mission or used fuel, reserve fuel and trapped fuel. Reason: Depending on type of aircraft, fuel fraction for each category will be different. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true
  ক

  and reason : Assertion : Total fuel volume of aircraft is divided into mission or used fuel, reserve fuel and trapped fuel. Reason: Depending on type of aircraft, fuel fraction for each category will be different. ] Both and are true and is the correct reason for

  খ

  A

  গ

  A

  ঘ

  A
• According to FAA, general aviation aircraft requires reserved fuel in terms of _____
  ক

  additional cruise fuel of half hour

  খ

  additional climb fuel

  গ

  no provision is mentioned in FAA

  ঘ

  additional taxi-way fuel of three hours
• In A/C, we provide reserve fuel for _____
  ক

  loiter maneuver

  খ

  weight reduction

  গ

  to increase weight

  ঘ

  there is no provision for it
• What is the working principle of ‘fuel-fraction’ method?
  ক

  Division of mission profile into number of phases and finding individual phase fuel fraction

  খ

  Division of mission profile into 3 phases only

  গ

  Calculating fuel fraction for each stage

  ঘ

  Assuming any value for fuel fraction
• The typical method for determining fuel weight used is called as _____
  ক

  fuel-fraction method

  খ

  fuel-invert method

  গ

  fuel interpolation

  ঘ

  fuel fraction mining
• Is it mandatory for Aircraft to carry reserved fuel?
  ক

  Yes

  খ

  No

  গ

  Depends upon the type of aircraft

  ঘ

  Depends upon manufacture
• Choose the correct statement based on fuel weight.
  ক

  Fuel required is solely based on mission profile

  খ

  Fuel weight is independent of SFC of engine

  গ

  The required amount of the fuel for mission depends on aerodynamics, SFC, mission itself etc

  ঘ

  Fuel requirement is not affected by any factors