After one-half the battery's useful life, or 1 hour cumulative use.
When must the battery in an emergency locator transmitter (ELT) be replaced (or recharged if the battery is rechargeable)?
Which weather phenomenon is always associated with a thunderstorm?
What is Lightning ?
The imaginary line between the leading and trailing edge of the airfoil.
What is the Chord Line?
The control that turns the aircraft around its vertical axis.
What are the Pedals?
What are the characteristics of a moist, unstable air mass?
What is Cumuliform clouds and showery precipitation.
Ground effect is most likely to result in which problem?
What is Becoming airborne before reaching recommended takeoff speed.
The most important rule to remember in the event of a power failure after becoming airborne is to
What is immediately establish the proper gliding attitude and airspeed.
One of the most easily recognized discontinuities across a front is
What is a change in temperature.
A crack in the propeller?
Can cause the prop to separate and the engine to fall out of the airplane
The amount of water vapor which air can hold depends on the ?
What is air temperature.
What force makes an airplane turn?
What is The horizontal component of lift.
Gases of higher pressure tend to equalize with gases of lower pressure by flowing to the area of low pressure.
What is Bernoulli's Principle?
How many Global Positioning System (GPS) satellites are required to yield a three dimensional position (latitude, longitude, and altitude) and time solution?
What is 4.
At approximately what altitude above the surface would the pilot expect the base of cumuliform clouds if the surface air temperature is 82 °F and the dewpoint is 38 °F?
What is 10,000 feet AGL