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Aerospace Engineering Gate 2014 Questions with Answer
Ques 40 GATE 2014
For the periodic function given by
with f(x+2π)=f(x). using Fourier series, the sum s=1-1/3+1/5-1/7. +converges to
Ques 41 GATE 2014
Let ฮ be the boundary of the closed circular region A given by x2+y2≤1 Then I=∫Γ(3x3-9xy2)ds (where ds means integration along the bounding curve) is
Ques 42 GATE 2014
Solution to the boundary-value problem
-9 d2u/dx2+u=5x, 0<x<3 with u(0)=0,du/dx|x=3=0 is
Ques 43 GATE 2014
The Laplace transform L(u(t))=U(s), for the solution u(t) of the problem d2u/dt2+2du/dt+u=1, t>0 with initial conditions u(0)=0,du(0)/dt=5; is given by:
Ques 44 GATE 2014
A student is required to demonstrate a high level of comprehension of the subject, especially in the social sciences.
The word closest in meaning to comprehension is
Ques 45 GATE 2014
Choose the most appropriate word from the options given below to complete the following sentence.
One of his biggest _______ was his ability to forgive.
Ques 46 GATE 2014
A damped single degree of freedom system whose undamped natural frequency ,ωn=10Hz, is subjected to sinusoidal external force. Power is half of the maximumfor the two frequencies of 60.9469 rad/s and 64.7168 rad/s. The damping factor associated with the vibrating system (in %) is
Ques 47 GATE 2014
The moment coefficient measured about the centre of gravity and about aerodynamic centre of a given wing-body combination are 0.0065 and -0.0235 respectively. The aerodynamic centre lies 0.06 chord lengths ahead of the centre of gravity. The lift coefficient for this wing-body is
Ques 48 GATE 2014
In most airplanes, the Dutch roll mode can be excited by applying
Ques 49 GATE 2014
A single degree of freedom system is vibrating with initial (first cycle) amplitude of 5cm. The viscous damping factor associated with the vibrating system is 2%. Vibration amplitude of the fifth cycle (in cm) is
Ques 50 GATE 2014
Consider the following four statements regarding aircraft longitudinal stability:
P. CM,cg at zero lift must be positive
Q. ∂CM,cg/∂aa must be negative (aa is absolute angle of attack)
R. CM,cg at zero lift must be negative
S. Slope of CL versus aa must be negative
Which of the following combination is the necessary criterion for stick fixed longitudinal balance and static stability?
Ques 51 GATE 2014
The vertical ground load factor on a stationary aircraft parked in its hangar is:
Ques 52 GATE 2014
Under what conditionshould a ensure minimum sink rate?
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