Challenge Questions PPL Sec 2.

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Challenge Questions PPL Sec 2.

Post  Admin on Wed Dec 02, 2009 8:26 am

Question: 3201 Subject Code: H300
The four forces acting on an airplane in flight are
A) lift, gravity, power, and friction.
B) lift, weight, thrust, and drag.
C) lift, weight, gravity, and thrust.

Question: 3202 Subject Code: H300
When are the four forces that act on an airplane in equilibrium?
A) During unaccelerated flight.
B) When the aircraft is accelerating.
C) When the aircraft is at rest on the ground.

Question: 3203 Subject Code: H300
(Refer to figure 1.) The acute angle A is the angle of
A) attack.
B) dihedral.
C) incidence.

Question: 3204 Subject Code: H300
The term "angle of attack'' is defined as the angle
A) between the wing chord line and the relative wind.
B) between the airplane's climb angle and the horizon.
C) formed by the longitudinal axis of the airplane and the chord line of the wing.

Question: 3205 Subject Code: H300
What is the relationship of lift, drag, thrust, and weight when the airplane is in straight-and-level flight?
A) Lift equals weight and thrust equals drag.
B) Lift, drag, and weight equal thrust.
C) Lift and weight equal thrust and drag.

Question: 3206 Subject Code: H300
How will frost on the wings of an airplane affect takeoff performance?
A) Frost will change the camber of the wing, increasing its lifting capability.
B) Frost will disrupt the smooth flow of air over the wing, adversely affecting its lifting capability.
C) Frost will cause the airplane to become airborne with a higher angle of attack, decreasing the stall speed.

Question: 3207 Subject Code: H300
In what flight condition is torque effect the greatest in a single-engine airplane?
A) High airspeed, high power, high angle of attack.
B) Low airspeed, low power, low angle of attack.
C) Low airspeed, high power, high angle of attack.

Question: 3208 Subject Code: H301
The left turning tendency of an airplane caused by P-factor is the result of the
A) clockwise rotation of the engine and the propeller turning the airplane counter-clockwise.
B) gyroscopic forces applied to the rotating propeller blades acting 90° in advance of the point the force was applied.
C) propeller blade descending on the right, producing more thrust than the ascending blade on the left.

Question: 3209 Subject Code: H301
When does P-factor cause the airplane to yaw to the left?
A) When at low angles of attack.
B) When at high angles of attack.
C) When at high airspeeds.

Question: 3210 Subject Code: H302
An airplane said to be inherently stable will
A) not spin.
B) be difficult to stall.
C) require less effort to control.

Question: 3211 Subject Code: H302
What determines the longitudinal stability of an airplane?
A) The location of the CG with respect to the center of lift.
B) The effectiveness of the horizontal stabilizer, rudder, and rudder trim tab.
C) The relationship of thrust and lift to weight and drag.

Question: 3212 Subject Code: H302
What causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted?
A) The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.
B) When thrust is reduced to less than weight, lift is also reduced and the wings can no longer support the weight.
C) The CG shifts forward when thrust and drag are reduced.

Question: 3213 Subject Code: H302
What is the purpose of the rudder on an airplane?
A) To control roll.
B) To control overbanking tendency.
C) To control yaw.

Question: 3219 Subject Code: H305
One of the main functions of flaps during approach and landing is to
A) increase the angle of descent without increasing the airspeed.
B) permit a touchdown at a higher indicated airspeed.
C) decrease the angle of descent without increasing the airspeed.

Question: 3220 Subject Code: H305
What is one purpose of wing flaps?
A) To enable the pilot to make steeper approaches to a landing without increasing the airspeed.
B) To decrease wing area to vary the lift.
C) To relieve the pilot of maintaining continuous pressure on the controls.
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Re: Challenge Questions PPL Sec 2.

Post  Kerveras Andreas on Mon Jan 18, 2010 10:53 am

Q3201: B
Q3202: A
Q3204: A
Q3205: A
3206: B
3207 : A
3208: C
3209: C
3210: C
3211: A
3212: NEED ASSISTANCE???
3213:C
3219: A
3220: A

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Re: Challenge Questions PPL Sec 2.

Post  Admin on Mon Jan 18, 2010 4:13 pm

Question: 3212

The answer cannot be C because if thrust and drag decrease proportionately, CG does not move position. Weight may become greater than liftr, but CG is a fixed position on the aircraft. Only CP may be altered at the pilots command.

The answer cannot be B, because as it is stated in the question - "What causes an airplane -except a T-tail- to pitch nose down"...you know that a T tail is not effected by the decreased down wash of the propeller slip stream and does not rely on slip stream effect for its own effective control power; and an aircraft with a normal tail pitches down due to a decreased slip stream, the answer must be A.

So B, is not an answer at all, its just a common statement which ultimately doesn't answer the question. You see, the question was - What causes an airplane -except a T-tail- not....what causes an airplane. And thats what tells you the answer. Smile

Your answer to Question: 3207 is incorrect.
Your answer to Question: 3209 is incorrect. study Try these two questions again
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