6- In Wind speed can be measured by............... ..... a- hot wire anemometer, b- pitot- static tube c- pitot tube only d- a and b, e-band c Oa Ob Oc Od Oe
7- Large scale addy in test section can be eliminated by using .... a- long diffuser, b- honey comp, c- settling chamber, d- a and b, e- b and C. Oa Ob Ос Od Oe
8- Wing efficiency is represented by ..... a- Lift-moment ratio b- Coefficient of lift-coefficient of drag ratio c- Angle of attack-drag ratio d- Lift-angle of attack ratio Oa Ob Oc Od
9-Define stalling angle in the graph................. a- The curve increases maximum at a particular section and decreases rapidly in the same section b- The curve increases at different section and decreases rapidly at different section c- The curve remains constant at all section d- Lift curve will increases and drag curve will remain constant Oa Ob Ос Od
10-Purpose of camber in an airfoil is a- to increase maximum drag, b- to increase maximum lift, c-to decrease maximum lift d) to decrease maximum drag Oa Ob Ос Od
6- In Wind speed can be measured by............... ..... a- hot wire anemometer, b- pitot- static tube c- pitot tube onl
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6- In Wind speed can be measured by............... ..... a- hot wire anemometer, b- pitot- static tube c- pitot tube onl
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