PPL Weight and Balance Quiz

In straight and level, unaccelerated flight, which force counteracts the weight of the airplane?

• Thrust

• Upwash

• Lift

• Up Force

Correct weight and balance means:

• Max weight can be exceeded by not more than 10%. CG is +-10" from reference point

• Gross weight is within the manufacturer's recommendation. CG is within specified range

• Takeoff weight should be within 5% of the allowable weight. CG within range

• Landing weight and CG position are within manufacturer's recommendation.

Which one is a detrimental effect of weight to aircraft performance?

• The angle at which the wings exceed the critical angle of attack increases.

• The bank angle in which the wings stall increases.

• The minimum steady flight speed in which the airplane is still controllable increase.

• The power setting in which the airplane stalls increases.

Which statement tells how weight affects aircraft performance?

• If the airplane is overweight, as long as the power is at maximum, climb performance remains the same.

• If the airplane is overweight at takeoff, as long as the mixture is leaned properly, cruising levels remain the same.

• Regardless of weight, the landing distance remains the same as long as the runway is paved.

• If the airplane is overweight, the difference between the available power and the power required to counteract drag decreases.

Which one can be considered an effect of being overweight to aircraft performance?

• The aircraft's cruising speed decreases with an increase in fuel consumption because of the high angle of attack.

• The aircraft's range increases because of the decrease in cruising speed and fuel consumption.

• The aircraft's endurance decreases but the range increases because of the high power setting.

• The aircraft's range decreases but the endurance increases because of the low power setting.

How is moment of a force defined?

• The force that perpendicular to the relative wind.

• The force that points downward, towards the center of the Earth.

• The tendency of a force to cause a rotation.

• The force that counteracts thrust.

The moment of a force can be determined by which factors?

• By adding the vertical component of lift and the horizontal component of drag.

• By subtracting the downforce from the upward force.

• By multiplying the weight and it's distance from a given reference point.

• By multiplying the distance of an object to the airplane's gross weight.

It is the point where the weight of an object is said to be concentrated.

• Center of Pressure

• Datum of Mass

• Reference Datum

• Center of Gravity

It is an imaginary vertical plane or line from which all measurements of arms are taken.

• Reference Mass

• Reference Limit

• Reference Range

• Reference Datum

Using computation method, what is the moment for the usable fuel of a C152, loaded with a total of 24 gallons of fuel?

• 7700 lbs-in

• 5670 lbs-in

• 4880 lbs-in

• 6174 lbs-in