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Aircraft Design
Aircraft Design Assessment
Quiz 1
Solution
Q.1.
Graphical representation of sink rate of sailplane is called ____________
a) typical speed polar
b) drag polar wing
c) lift curve of wing
d) propulsion systems
Q.2.
Velocity for the best glide ratio is 100ft/s. Determine velocity for minimum sink rate.
a) 76ft/s
b) 124m/s
c) 23fts
d) 45 fts2
Q.3.
Variometer is used for _____________
a) informing pilot when glider is in lift
b) increase lift
c) thrust reversal
d) increase thrust produced
Q.4.
Consider turning glide operation with bank angle of 1.5 and Weight ofunit. Find lift.
a) 125.042
b) 56
c) 120
d) 345
Q.5.
Determine the value of turn rate. Consider glider has centripetal acceleration ofand velocity of 9.5.
a) 1.052
b) 9.5
c) 10
d) 2.8
Q.6.
Determine the value of best glide ratio velocity. Consider velocity for minimum sink rate isfps.
a) 13.15 fps
b) 20 fps
c) 11 fps
d) 34 fps
Q.7.
Consider turning gliding flight. Turn rate is given as 0.2 unit and velocity of flight isunit. Find the value of turn radius.
a) 50
b) 100
c) 2
d) 8
Q.8.
Find the range of glider which has L/D of 13.6 and is descending from 5km.
a) 68km
b) 12 m
c) 12 inch
d) 68 m
Q.9.
If KCD0 is 0.then, find lift to drag ratio for minimum sink.
a) 3.66
b) 36.6
c) 1.4
d) 24
Q.10.
Consider a glider is descending from 2km altitude. If it covers range of 30km then, at which aerodynamic efficiency the glider was flying?
a) 15
b) 60
c) 12
d) 21
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