OPS DISPATCH EXAM | 211 QUESTIONS | WITH
COMPLETE SOLUTIONS, GRADED A+
As aircraft weight decreases with fuel burn, to maintain long range cruise, the
pilot must
a) increase thrust and reduce airspeed
b) maintain thrust and increase airspeed
c) reduce thrust to maintain best L/D ratio
d) reduce thrust and reduce airspeed Answer - reduce thrust and airspeed
In cruise, an airplane increases power to accelerate and increase speed. What
happens to the angle of attack if the aircraft maintains altitude?
a) angle of attack decreases
b) angle of attack increases
c) increase angle of attack until stable, and then decrease
d) no change Answer - a) angle of attack decreases
which of the following has the greatest impact on speed of sound?
a) pressure
b) temperature
c) airfoil shape
d) wind Answer - temperarture
what happens to the angle of attack when the aircraft is transitioning from
climb into a level cruising attitude?
,a)it increases
b) it decreases
c) remains the same
d) goes to 0 Answer - it decreases
What is the angle of incidence?
a) the angle between the chord line of the wing and the relative airflow
b) the angle between the chord line of the wing and the lateral axis
c) the angle between the chord line of the wing and the longitudinal axis
d) the angle between the chord line of the wing and the thrust vector Answer -
the angle between the chord line of the wing and the longitudinal axis
which of the following can change the critical angle of attack?
a) weight of the aircraft
b) airfoil shape
c) load factor
d) airspeed Answer - airfoil shape
in turbulence, a vertical gust affects stall speed of an aircraft primarily due to
the change in
a) angle of attacks
b) center of gravity
c) boundary layer
d) airflow density Answer - angle of attacks
how would a higher pressure altitude affect the landing distance of an aircraft?
a)increase landing distance
,b) reduces landing distance
c) has no effect Answer - increase landing distance
in regards to low level wind shear, which of the following is true?
a) increase in headwind or decrease in tailwind will result in decreased IAS
b) decrease in headwind or increase in tailwind will result in decreased IAS
c) decrease in headwind or increase in tailwind will result in increased IAS
d) none of the above Answer - decrease in headwind or increase in tailwind
will result in decreased IAS
how would wind shear affect climb?
a) sudden increase or decrease of airspeed
b) cause turbulence due to violent air movement
c) increase or decrease climb rate
d) all of the above Answer - all of the above
weight added to an aircraft will:
a) increase landing distance
b) decrease landing distance
c) landing distance remains the same
d) depends on the type of aircraft Answer - increase landing distance
once an airfoil stalls, the center of pressure
a) moves forward
b) moves back
c) stays stationary
d) moves up Answer - moves back
, what is critical mach number?
a) the aircraft speed at which airflow becomes sonic over any part of the
aircraft
b) the maximum airspeed that an aircraft can achieve
c) the airspeed where the airflow is between subsonic and transonic
d) the airspeed use for Critical Point calcuations Answer - the aircraft speed at
which airflow becomes sonic over any part of the aircraft
what do spoilers do
a) decrease lift and decrease drag
b) increase lift and increase drag
c) increase lift and decrease drag
d) decrease lift and increase drag Answer - decrease lift and increase drag
when is the worst kind of wake turbulence encountered behind a heavy
aircraft?
a) on the ground
b)clean and slow
c) when engines are running
d) when the flaps are down Answer - clean and slow
wake turbulence is a by-product of ?
a) wing tip vortices
b) lift
c) wing fences
d) speed and weight Answer - lift
COMPLETE SOLUTIONS, GRADED A+
As aircraft weight decreases with fuel burn, to maintain long range cruise, the
pilot must
a) increase thrust and reduce airspeed
b) maintain thrust and increase airspeed
c) reduce thrust to maintain best L/D ratio
d) reduce thrust and reduce airspeed Answer - reduce thrust and airspeed
In cruise, an airplane increases power to accelerate and increase speed. What
happens to the angle of attack if the aircraft maintains altitude?
a) angle of attack decreases
b) angle of attack increases
c) increase angle of attack until stable, and then decrease
d) no change Answer - a) angle of attack decreases
which of the following has the greatest impact on speed of sound?
a) pressure
b) temperature
c) airfoil shape
d) wind Answer - temperarture
what happens to the angle of attack when the aircraft is transitioning from
climb into a level cruising attitude?
,a)it increases
b) it decreases
c) remains the same
d) goes to 0 Answer - it decreases
What is the angle of incidence?
a) the angle between the chord line of the wing and the relative airflow
b) the angle between the chord line of the wing and the lateral axis
c) the angle between the chord line of the wing and the longitudinal axis
d) the angle between the chord line of the wing and the thrust vector Answer -
the angle between the chord line of the wing and the longitudinal axis
which of the following can change the critical angle of attack?
a) weight of the aircraft
b) airfoil shape
c) load factor
d) airspeed Answer - airfoil shape
in turbulence, a vertical gust affects stall speed of an aircraft primarily due to
the change in
a) angle of attacks
b) center of gravity
c) boundary layer
d) airflow density Answer - angle of attacks
how would a higher pressure altitude affect the landing distance of an aircraft?
a)increase landing distance
,b) reduces landing distance
c) has no effect Answer - increase landing distance
in regards to low level wind shear, which of the following is true?
a) increase in headwind or decrease in tailwind will result in decreased IAS
b) decrease in headwind or increase in tailwind will result in decreased IAS
c) decrease in headwind or increase in tailwind will result in increased IAS
d) none of the above Answer - decrease in headwind or increase in tailwind
will result in decreased IAS
how would wind shear affect climb?
a) sudden increase or decrease of airspeed
b) cause turbulence due to violent air movement
c) increase or decrease climb rate
d) all of the above Answer - all of the above
weight added to an aircraft will:
a) increase landing distance
b) decrease landing distance
c) landing distance remains the same
d) depends on the type of aircraft Answer - increase landing distance
once an airfoil stalls, the center of pressure
a) moves forward
b) moves back
c) stays stationary
d) moves up Answer - moves back
, what is critical mach number?
a) the aircraft speed at which airflow becomes sonic over any part of the
aircraft
b) the maximum airspeed that an aircraft can achieve
c) the airspeed where the airflow is between subsonic and transonic
d) the airspeed use for Critical Point calcuations Answer - the aircraft speed at
which airflow becomes sonic over any part of the aircraft
what do spoilers do
a) decrease lift and decrease drag
b) increase lift and increase drag
c) increase lift and decrease drag
d) decrease lift and increase drag Answer - decrease lift and increase drag
when is the worst kind of wake turbulence encountered behind a heavy
aircraft?
a) on the ground
b)clean and slow
c) when engines are running
d) when the flaps are down Answer - clean and slow
wake turbulence is a by-product of ?
a) wing tip vortices
b) lift
c) wing fences
d) speed and weight Answer - lift
