A cylinder has a radius of 20cm and a length of 40cm. What is its volume? (Take pi as 3.1)
•  800 cm^3
•  49600 cm^3
•  50270 cm^3

elio0202 asking:
•  what is the formula of a volume of a cylinder please

Community comments: 1

During flap down selection in a continuous straight and level flight at constant IAS and weight
•  the lift coefficient and the drag coefficient increase.
•  the stall speed increases.
•  the centre of pressure moves aft, lift coefficient and the drag coefficient increase.

matth asking:
•  Center of pressure moves AFT but LIFT COEFFICENT AND DRAG INCREASE TOO

Community comments: 1

What external warning is there for an APU fire?
•  Aural.
•  Red light.
•  Both aural and a red light.

matth asking:
•  Never seen RED light outside Aircraft. AURAL sign OK

Community comments: 3

If a redundant structure fails it becomes
•  fatigued
•  safe-life
•  failsafe

matth asking:
•  The answer is FAILSAFE due to if a structure fail other structure (redundant) carry the load.
Safe life depend on LIFE of component. After FH or FC must be replaced... means that the component must be replaced BEFORE FAIL

Community comments: 2

To ensure that a wing stalls at the root first, stall wedges are
•  installed on the wing leading edge at the wing tip.
•  installed on the wing leading edge at the wing root.
•  installed at the wing trailing edge at the wing root.

matth asking:
•  Stall Wedges are installed at the wing ROOT LEADING EDGE PLS CORRECT

REF: http://www.scribd.com/doc/63481016/MODULE-11-COMPLETE

Community comments: 3