CPD222 mid 2/64

The effect of asymmetric thrust is to:

• (a) decrease the ability to climb

• (b) improve the turn performance

• (c) decrease the fuel consumption

• (d) increase the gradient of climb

For a piston-engined aeroplane at a constant altitude, angle of attack and configuration, an increased mass will require:

• (a) more power and speed

• (b) more power but the same speed

• (c) the same power but more speed

• (d) more power but less speed

How does Cl vary with altitude?

• (a) It increases with increased altitude.

• (b) It decreases with increased altitude.

• (c) It remains constant with increased altitude.

• (d) It decreases with decreased altitude.

The Maximum IAS for a piston-engined aeroplane in level flight is attained at the:

• (a) lowest practical altitude

• (b) optimum cruise altitude

• (c) service ceiling

• (d) practical ceiling

To maintain a given angle of attack, configuration and altitude at a higher gross mass the:

• (a) lift/drag ratio must be increased

• (b) airspeed must be increased but the drag remains constant

• (c) airspeed and drag will both be increased

• (d) airspeed will be decreased and the drag increased

The maximum horizontal speed occurs when the:

• (a) thrust is equal to the minimum drag

• (b) thrust does not increase further with increasing speed

• (c) maximum thrust is equal to the total drag

• (d) thrust is equal to the total drag

Differential aileron deflection:

• (a) is necessary to achieve the required rate of roll

• (b) equalises the drag from both ailerons

• (c) is required to keep the total lift constant when the ailerons are deflected

• (d) increases the Clmax

Flutter may be caused by:

• (a) distortion by bending and torsion of the structure causing increased vibration in the resonance

  frequency

• (b) low airspeed aerodynamic wing stall

• (c) roll-control reversal

• (d) high-airspeed aerodynamic wing stall

The purpose of a horn balance in a control system is to:

• (a) decrease the effective longitudinal dihedral of the aeroplane

• (b) decrease the required stick forces

• (c) prevent flutter

• (d) produce mass balancing

Aeroplanes with power-assisted controls are usually fitted with an adjustable stabiliser because:

• (a) mechanical adjustment of trim tabs is too complicated

• (b) trim tab deflection increases Mcrit

• (c) the effectiveness of the trim tabs is insufficient

• (d) the pilot does not feel the stick forces at all