Aerospace Engineering Exam 2007
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Questions and Answers

Which one of the following engines should be used by a subsonic passenger transport airplane for minimum specific fuel consumption?

  • Turbojet engine with afterburner
  • Turbofan engine (correct)
  • Ramjet engine
  • Scramjet engine
  • The damping of the spring-mass-damper system with a mass of 1 kg, damping ratio of 0.2, and natural frequency of 5 rad/s is given by:

  • 0.2 kg/s
  • 2 Ns/m
  • 2 N/s (correct)
  • 0.2 N/s
  • If $f(\theta) = \begin{bmatrix} cos\theta & sin\theta \ -sin\theta & cos\theta \end{bmatrix}$, then f(\alpha)*f(\beta) =

  • 2x2 zero matrix
  • f(\alpha+\beta) (correct)
  • f(\alpha/\beta)
  • f(\alpha-\beta)
  • An artificial satellite remains in orbit and does not fall to the earth because:

    <p>Its transverse velocity keeps it from hitting the earth although it falls continuously</p> Signup and view all the answers

    The Euler iteration formula for numerically integrating a first order nonlinear differential equation of the form $\dot{x} = f(x)$, with a constant step size of $\Delta t$ is:

    <p>$x_{k+1} = x_k + \Delta t \times f(x_k)$</p> Signup and view all the answers

    The number of natural frequencies of an elastic beam with cantilever boundary conditions is:

    <p>Infinite</p> Signup and view all the answers

    For maximum range of a glider, which of the following conditions is true?

    <p>Lift to drag ratio is maximum</p> Signup and view all the answers

    An airplane with a larger wing compared to a smaller wing will necessarily have:

    <p>More longitudinal static stability for an aft tail airplane if aerodynamic center of the larger wing is behind the center of gravity of the airplane</p> Signup and view all the answers

    The minimum value of $J(x) = x^2-7x+30$ occurs at:

    <p>x=7/2</p> Signup and view all the answers

    Two airplanes are identical except for the location of the wing. The longitudinal static stability of the airplane with low wing configuration will be:

    <p>Less than the airplane with high wing configuration</p> Signup and view all the answers

    For a fixed center of gravity location of an airplane, when the propeller is mounted on the nose of the fuselage:

    <p>Longitudinal static stability decreases</p> Signup and view all the answers

    Study Notes

    Aerospace Engineering Exam - 2007

    • Duration: Three hours
    • Maximum Marks: 150
    • Instructions:
      • Answer all 85 objective questions.
      • Use an Objective Response Sheet (ORS).
      • Use HB pencil to fill in the correct bubble for each question (A, B, C, D).
      • Erase completely if you want to change an answer.
      • Negative marking applies:
        • 0.25 marks deducted for wrong answers in questions 1-20
        • 0.5 marks deducted for wrong answers in questions 21-76, 78, 80, 82, 84
        • No negative marking for 77, 79, 81, 83, 85
      • Do not bubble more than one answer for a question.
      • Unanswered questions do not earn marks.
      • Fill in registration number, name, and exam center on the ORS.
      • Fill in registration number and paper code using HB pencil.
      • Calculator is allowed.
      • Charts, graph sheets, and tables are not allowed.
      • Rough work can be done on the question paper itself or on provided blank pages.
      • Check all pages for discrepancies.

    Question Types and Marks

    • Questions 1-20: Carry one mark each
    • Questions 21-85: Carry two marks each

    Additional Instructions

    • Question 1-20: One mark each
    • Question 21-75: Two marks each

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    Description

    Test your knowledge with this challenging Aerospace Engineering exam from 2007. Featuring 85 objective questions, this quiz covers various topics within the field, requiring careful consideration due to a negative marking scheme. Prepare to demonstrate your expertise and understanding in aerospace concepts.

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