A stall warning device must be set to operate:
a. At the stalling speed
b. At a speed just below the stalling speed
c. At a speed about 5% to 10% above the stalling speed
d. At a speed about 20% above the stalling speed
a. At the stalling speed
b. At a speed just below the stalling speed
c. At a speed about 5% to 10% above the stalling speed
d. At a speed about 20% above the stalling speed