MOD 8.3 PART 1

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Which force is the propelling force delivered by the aircraft's powerplant?

Lift

Thrust (correct)

Weight

Drag

Which force is produced mainly by the aircraft's wings and acts at right angles to the line of flight?

Weight

Drag

Lift (correct)

Thrust

Which force acts vertically downwards through the aircraft's center of gravity?

Weight (correct)

Lift

Drag

Thrust

Which force opposes the forward motion of the aircraft?

Drag (C) Signup and view all the answers

Which arrangement of the four forces tends to force the aircraft's nose down?

Lift and weight forces acting together (C) Signup and view all the answers

In steady state level flight, if an aircraft is flying at a constant height and speed, which equation represents the relationship between lift, weight, thrust, and drag?

Lift = Weight and Thrust = Drag (A) Signup and view all the answers

Which forces must be equal in order for an aircraft to maintain level flight?

Thrust and drag (A) Signup and view all the answers

What happens to an aircraft's speed if the thrust force disappears due to engine failure?

It maintains enough speed to prevent stalling (B) Signup and view all the answers

What is the purpose of a tailplane on an aircraft?

To counter out-of-balance pitching moments (D) Signup and view all the answers

What happens to an aircraft's nose when the thrust/drag couple is removed during engine failure?

It drops (B) Signup and view all the answers

What is the consequence of the downward force produced by the tailplane?

An increase in aircraft weight (D) Signup and view all the answers

Which factor affects the gliding range of an aircraft the most?

The prevailing wind (B) Signup and view all the answers

What is the primary purpose of the tailplane in an aircraft?

To balance the aircraft at high speed (B) Signup and view all the answers

What is the condition called when the lift force equals the weight force and the thrust force equals the drag force?

Trimmed (A) Signup and view all the answers

What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at low speed?

It moves forward (A) Signup and view all the answers

What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at high speed?

It moves rearwards (C) Signup and view all the answers

What is the relationship between the weight of an aircraft and the lift required during a climb?

The lift required is less than straight and level flight (D) Signup and view all the answers

What are the two means by which an aircraft gains potential energy during a climb?

Increasing thrust and a loss of airspeed without increasing power (D) Signup and view all the answers

Which force is responsible for keeping the aircraft in the air?

Lift (A) Signup and view all the answers

What is the equation for lift force?

$Lift = Weight \cdot \cos(\theta)$ (A) Signup and view all the answers

What is the equation for drag force?

$Drag = Weight \cdot \sin(\theta)$ (B) Signup and view all the answers

What is the purpose of the rudder during a right turn?

To prevent the nose from moving to the left (D) Signup and view all the answers

What happens to the lift force in a turn?

It increases (A) Signup and view all the answers

Which statement accurately describes load factor in straight and level flight?

The load factor is equal to 1. (B) Signup and view all the answers

What is the effect of increasing the angle of bank in a turn?

The load supported by the wings increases. (C) Signup and view all the answers

What force is required to overcome the inertia when an aircraft changes its flight path to a curved path?

Centripetal force (D) Signup and view all the answers

What is the relationship between increasing lift and load in an aircraft?

Increasing lift increases the positive load on the wings. (B) Signup and view all the answers

What happens to the load factor during a stall?

The load factor may be reduced to zero. (B) Signup and view all the answers

What happens to the load factor if there is an excessive deviation from positive or negative load factor limits?

The structural load limits of the aeroplane may be exceeded. (C) Signup and view all the answers

What’s the formula for load factor ?

Load factor = Lift / Weight (B) Signup and view all the answers

MOD 8.3 PART 1

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Questions and Answers

Which force is the propelling force delivered by the aircraft's powerplant?

Which force is produced mainly by the aircraft's wings and acts at right angles to the line of flight?

Which force acts vertically downwards through the aircraft's center of gravity?

Which force opposes the forward motion of the aircraft?

Which arrangement of the four forces tends to force the aircraft's nose down?

In steady state level flight, if an aircraft is flying at a constant height and speed, which equation represents the relationship between lift, weight, thrust, and drag?

Which forces must be equal in order for an aircraft to maintain level flight?

What happens to an aircraft's speed if the thrust force disappears due to engine failure?

What is the purpose of a tailplane on an aircraft?

What happens to an aircraft's nose when the thrust/drag couple is removed during engine failure?

What is the consequence of the downward force produced by the tailplane?

Which factor affects the gliding range of an aircraft the most?

What is the primary purpose of the tailplane in an aircraft?

What is the condition called when the lift force equals the weight force and the thrust force equals the drag force?

What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at low speed?

What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at high speed?

What is the relationship between the weight of an aircraft and the lift required during a climb?

What are the two means by which an aircraft gains potential energy during a climb?

Which force is responsible for keeping the aircraft in the air?

What is the equation for lift force?

What is the equation for drag force?

What is the purpose of the rudder during a right turn?

What happens to the lift force in a turn?

Which statement accurately describes load factor in straight and level flight?

What is the effect of increasing the angle of bank in a turn?

What force is required to overcome the inertia when an aircraft changes its flight path to a curved path?

What is the relationship between increasing lift and load in an aircraft?

What happens to the load factor during a stall?

What happens to the load factor if there is an excessive deviation from positive or negative load factor limits?

What’s the formula for load factor ?

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