After passing through a rectifier, alternating current becomes
•  smooth direct current.
•  pulsating direct current.
•  square wave form current.

sunil asking:
•  Please write your question here.

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A propeller synchronising system allows a pilot to reduce noise and vibration by
•  adjusting the phase angle between the propellers.
•  setting the RPM of all propellers exactly the same.
•  adjusting the plane of rotation of all propellers.

sunil asking:
•  Please write your question here.

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A propeller synchrophasing system allows a pilot to reduce noise and vibration by
•  setting the RPM of all propellers exactly the same.
•  adjusting the plane of rotation of all propellers.
•  adjusting the phase angle between the propellers.

sunil asking:
•  Please write your question here.

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An H.M.U receives its signals from
•  E.C.
•  ADC.
•  thrust lever resolvers.

Ekio asking:
•  Hi,

EC reffers ECU??

Thanks

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An exhaust cone placed aft of the turbine in a jet engine will cause the pressure in the first part of the exhaust duct to
•  increase and the velocity to decrease.
•  decrease and the velocity to increase.
•  increase and the velocity to increase.

Ekio asking:
•  The type of duct that forms the exhaust cone will determine what happens with the pressure and temperature. I distinguish 2 types of cone and therefore 2 types of conduit:

1 / convergent - divergent
2 / divergent

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