What is a moment arm?

What is a moment arm?

The distance from the datum to the point at which the weight of a component acts.

What is radiation fog?

What is radiation fog?

Radiation fog forms on cloudless nights with only very light winds and high relative humidity when the cold ground cools the air above it to its dew point causing condensation (fog).

Usually occurs inland in valleys and low lying areas (as these areas tend to have more moisture) and usually occurs in a high pressure system.

Explain the Fohn wind.

Explain the Fohn wind.

A Fohn wind is a warm dry wind that blows down the lee side of a mountain.

Initially, the air temperature cools dry-adiabatically (3°C/1000 ft), until its dew point temperature is reached. Condensation occurs as the air is further forced up the mountain range, resulting in the air cooling saturated-adiabatically (generally considered in the mid-latitudes to be 1.8°C/1000 ft). Clouds and precipitation form. When the air mass reaches the top of the mountain range it has lost a significant amount of its water content and so has a much lower dew point temperature.

As the air then begins to descend down the lee slope of the mountain the compressed air is initially heated saturated-adiabatically, and in effect the direct reverse to the cooling effect on the windward side occurs. As the air continues leeward and downward from the mountain range, the air, now no longer saturated, is heated dry-adiabatically.

The resultant wind is dry and warm giving clear conditions at airfields on the lee side of the mountain range.

The Foehn Effect also may be associated with mountain wave activity.

What does the abbreviation PAPI mean?

What does the abbreviation PAPI mean?

Precision Approach Path Indicator

If you climb to FL300 at a constant IAS of 250kts, what would happen to the TAS?

If you climb to FL300 at a constant IAS of 250kts, what would happen to the TAS?

TAS will increase.

What does a bypass ratio of 11:1 mean?

What does a bypass ratio of 11:1 mean?

For every 1kg of air passing through the combustion chamber, 11kg of air pass bypass the combustion chamber.

What is convergency?

What is convergency?

Meridians converge from their maximum distance apart (at the equator) to the poles where they meet.

Great circles are the shortest distance between two points and convergency represents the change in direction experienced between those points.

What would you do in the event of an engine failure below V1, and what would your initial actions be?

What would you do in the event of an engine failure below V1, and what would your initial actions be?

Assuming I'm performing single pilot operations:

  • power idle,

  • max brakes (and reversers if available),

-maintain directional control using rudder input,

  • After coming to a full stop set parking break.

  • Inform ATC 'Stopping'.

  • Initiate the appropriate process to diagnose the problem (ECAM, NITS DODAR, checklists....).

  • When performing multi pilot operations the actions performed by me will depend with my current role: PF, PM and/or CM1 CM2.

What will happen if the primer of your engine/fuel system kept operating?

What will happen if the primer of your engine/fuel system kept operating?

A variable pitch propeller provides an optimum angle of attack for the propeller blades for a longer range which reduces fuel usage, fixed pitch propellers only have a certain rpm.

Does a jet have a critical engine? Why yes or no?

Does a jet have a critical engine? Why yes or no?

No, there is no P-factor (asymmetric blade effect) as on a propeller-driven aircraft.

You have reached the end of the test!Share LinkFinish