PAR Exam Practice Test v3
The greatest vortex strength occurs when the generating aircraft is - Answer-heavy, clean, and slow.
(The strength of the vortex is governed by the weight, speed, and shape of the wing of the generating
aircraft. The greatest vortex strength occurs when the generating aircraft is heavy, clean and slow.)
(Refer to Figure 2.) If an airplane weighs 4,500 pounds, what approximate weight would the airplane
structure be required to support during a 45° banked turn while maintaining altitude? - Answer-6,750
pounds.
The term "angle of attack" is defined as the angle between the - Answer-chord line of the wing and the
relative wind.
(The angle of attack is the angle between the chord line of the airfoil and the direction of the relative
wind.)
If the grade of fuel used in an aircraft engine is lower than specified for the engine, it will most likely
cause - Answer-detonation.
(Using fuel of a lower rating is harmful under any circumstances because it may cause loss of power,
excessive heat, burned spark plugs, burned and sticky valves, high oil consumption, and detonation.)
Detonation occurs in a reciprocating aircraft engine when - Answer-the unburned charge in the
cylinders explodes instead of burning normally.
, (Detonation is a sudden explosion, or instantaneous combustion, of the fuel/air mixture in the cylinders,
producing extreme heat and severe structural stresses on the engine.)
Who is primarily responsible for maintaining an aircraft in airworthy condition? - Answer-Owner or
operator.
(14 CFR Part 91 places primary responsibility on the owner or operator for maintaining an aircraft in an
airworthy condition.)
In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will
normally indicate - Answer-correctly when on a north or south heading.
(While on an east or west heading, an increase in airspeed or acceleration will cause the compass to
indicate a turn toward the north and a deceleration will cause the compass to indicate a turn to the
south. If on a north or south heading, no error will be apparent because of acceleration or deceleration.
(Remember ANDS = Accelerate North Decelerate South).)
(Refer to Figure 7.) The proper adjustment to make on the attitude indicator during level flight is to align
the - Answer-miniature airplane to the horizon bar.
(The miniature airplane 'C' is adjusted so that the wings overlap the horizon bar 'B' when the airplane is
in straight-and-level cruising flight.)
(Refer to Figure 4.) Which color identifies the power-off stalling speed in a specified configuration? -
Answer-Lower limit of the green arc.
(The green arc is the normal operating range. The lower end of the arc (V(S1)) is the stalling speed in a
specified configuration.)
When an ATC clearance has been obtained, no pilot in command may deviate from that clearance,
unless that pilot obtains an amended clearance. The one exception to this regulation is - Answer-an
emergency.
(Except in an emergency, no person may operate an aircraft contrary to an ATC clearance or instruction.)
The greatest vortex strength occurs when the generating aircraft is - Answer-heavy, clean, and slow.
(The strength of the vortex is governed by the weight, speed, and shape of the wing of the generating
aircraft. The greatest vortex strength occurs when the generating aircraft is heavy, clean and slow.)
(Refer to Figure 2.) If an airplane weighs 4,500 pounds, what approximate weight would the airplane
structure be required to support during a 45° banked turn while maintaining altitude? - Answer-6,750
pounds.
The term "angle of attack" is defined as the angle between the - Answer-chord line of the wing and the
relative wind.
(The angle of attack is the angle between the chord line of the airfoil and the direction of the relative
wind.)
If the grade of fuel used in an aircraft engine is lower than specified for the engine, it will most likely
cause - Answer-detonation.
(Using fuel of a lower rating is harmful under any circumstances because it may cause loss of power,
excessive heat, burned spark plugs, burned and sticky valves, high oil consumption, and detonation.)
Detonation occurs in a reciprocating aircraft engine when - Answer-the unburned charge in the
cylinders explodes instead of burning normally.
, (Detonation is a sudden explosion, or instantaneous combustion, of the fuel/air mixture in the cylinders,
producing extreme heat and severe structural stresses on the engine.)
Who is primarily responsible for maintaining an aircraft in airworthy condition? - Answer-Owner or
operator.
(14 CFR Part 91 places primary responsibility on the owner or operator for maintaining an aircraft in an
airworthy condition.)
In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will
normally indicate - Answer-correctly when on a north or south heading.
(While on an east or west heading, an increase in airspeed or acceleration will cause the compass to
indicate a turn toward the north and a deceleration will cause the compass to indicate a turn to the
south. If on a north or south heading, no error will be apparent because of acceleration or deceleration.
(Remember ANDS = Accelerate North Decelerate South).)
(Refer to Figure 7.) The proper adjustment to make on the attitude indicator during level flight is to align
the - Answer-miniature airplane to the horizon bar.
(The miniature airplane 'C' is adjusted so that the wings overlap the horizon bar 'B' when the airplane is
in straight-and-level cruising flight.)
(Refer to Figure 4.) Which color identifies the power-off stalling speed in a specified configuration? -
Answer-Lower limit of the green arc.
(The green arc is the normal operating range. The lower end of the arc (V(S1)) is the stalling speed in a
specified configuration.)
When an ATC clearance has been obtained, no pilot in command may deviate from that clearance,
unless that pilot obtains an amended clearance. The one exception to this regulation is - Answer-an
emergency.
(Except in an emergency, no person may operate an aircraft contrary to an ATC clearance or instruction.)
