POF Q13 - Stall Warning & Protection

Question 1

How is stall warning presented to the pilots of a large transport aeroplanes?

a.aural warning with a stick shaker and pusher if required

b.stick pusher

c.aural warning only

d.stall warning light only

Answer 1

a.aural warning with a stick shaker and pusher if required

Question 2

The vane of a stall warning system with a flapper switch is activated by the change of the:

a.stagnation point

b.centre of gravity

c.point of lowest pressure

d.centre of pressure

Answer 2

a.stagnation point

Question 3

Which of the following are symptoms of the stall?
PICK ALL CORRECT ANSWERS

a.More effective Ailerons

b.reduced pitch authority

c.Aerodynamic Buffet

d.Increased Rate of Descent

Answer 3

b.reduced pitch authority
c.Aerodynamic Buffet
d.Increased Rate of Descent

Question 4

How would you recover from a stall in a light aircraft?

a.
1.Reduce the AoA
2. Increase Power
3.Gentle Aileron and Rudder inputs

b.
1. Increase Power
2. Reduce the AoA
3. Gentle Aileron and Rudder Inputs

c.
1. Reduce the AoA
2. Gentle Aileron and rudder inputs
3. Increase Power

d.
1. Increase Power
2. Gentle Aileron and Rudder Inputs
3. Reduce the AoA

Answer 4

a.
1.Reduce the AoA
2. Increase Power
3.Gentle Aileron and Rudder inputs

Question 5

Can you recover from a stall without the use of power?

a.Yes

b.No

Answer 5

a.Yes

Question 6

A Stall occurs solely due to loss of speed.

True
False

Answer 6

False

Question 7

An aircraft without a stick pusher must be warned of the stall at a speed of at least?

a.5 Kts and 5% above the relevant stall speed

b.10 Kts and 10% below the relevant stall speed

c.5 Kts and 5% above the below stall speed

d.10 Kts and 10% above the relevant stall speed

Answer 7

a.5 Kts and 5% above the relevant stall speed

Question 8

In an Airbus A320 whilst operating in Normal Law, there are 3 AoA protections. These protections are;

a.Alpha Prevention, Alpha Maximum, Alpha Thrust

b.Alpha Stall, Alpha Push, Alpha Floor

c.Alpha Protection, Alpha Floor, Alpha Maximum

d.Alpha Floor, Alpha Maximum, Alpha Prevention

Answer 8

c.Alpha Protection, Alpha Floor, Alpha Maximum

Question 9

Which of the following are the angle of attack stall warning systems?

a.Pressure differential air vane

b.Stall switch

c.AoA Compass

d.AoA Probe

Answer 9

d.AoA Probe

(AoA probes work by sensing different pressures in each port. By detecting the pressure different they are able to calculate the aircraft’s AoA)

Question 10

Buffet…

a.
… increases as alpha increases and can be felt through the controls and airframe

b.
…. decreases as alpha increases and can be felt through the controls and airframe

Answer 10

a.
… increases as alpha increases and can be felt through the controls and airframe