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IFR written prep > Aerodynamics and Aircraft > Flashcards

Aerodynamics and Aircraft Flashcards

1
Q

VOR operational checks need to be accomplished within the preceding

A

30 days

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2
Q

When making an airborne VOR check using a dual VOR system, what is the maximum allowable difference between the two?

A

4 degrees between the two indicated bearings of a VOR

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3
Q

If in level flight, it becomes necessary to use an alternate source of static pressure, which instrument indications will vary and how will they vary?

A

The altimeter will read higher than normal, airspeed greater than normal, and the VSI will momentarily show a climb.

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4
Q

How will the magnetic compass react when rolling into a standard rate turn to the right from an easterly heading in the N hemisphere?

A

The compass will indicate an approximate correct heading if the roll into the turn is smooth

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5
Q

How will the magnetic compass react when rolling into a standard rate turn to the right from an southerly heading in the N hemisphere?

A

The compass will indicate a faster turn to the right than what is actually occurring

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6
Q

How will the magnetic compass react when rolling into a standard rate turn to the left from an southerly heading in the N hemisphere?

A

The compass will indicate a faster turn to the left than what is actually occuring

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7
Q

How will the magnetic compass react when rolling into a standard rate turn to the right from an northerly heading in the N hemisphere?

A

The compass will initially indicate a turn to the left before correcting to the right

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8
Q

The rate of turn at any airspeed is dependent upon

A

The horizontal lift component

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9
Q

What is the relationship between centrifugal force and the horizontal lift component in a coordinated turn?

A

Horizontal lift and centrifugal force are equal

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10
Q

During a skidding turn to the right, what is the relationship between the component of lift, centrifugal force, and the load factor?

A

Centrifugal force is greater than horizontal lift and the load factor is increased

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11
Q

What force causes an airplane to turn?

A

Horizontal lift component

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12
Q

Which instrument indicates the quality of a turn?

A

Ball of the turn coordinator

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13
Q

During a constant bank level turn, what effect would an increase in airspeed have on the rate and radius of the turn?

A

Rate of turn would decrease, and radius would increase

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14
Q

Conditions that determine the pitch attitude required to maintain level flight are

A

airspeed, air density, wing design, and angle of attack

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15
Q

Rate of turn can be increased and the radius of a turn decreased by

A

decreasing the airspeed and increasing the bank

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16
Q

The primary reason the angle of attack must be increased to maintain a constant altitude during a coordinated turn is because the

A

vertical lift component has decreased as the result of the bank

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17
Q

What would the VSI indicate during entry into a 500 FPM descent from level flight if the static ports were iced over?

A

The VSI pointer would remain at zero regardless of the actual descent rate

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18
Q

If the pitot tube was clogged during flight, which instrument(s) would be affected?

A

The airspeed indicator only.

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19
Q

At an altitude of 6,500 feet MSL, the current altimeter setting is 30.42” Hg. The pressure altitude would approximately be

A

6,000 feet.

Every 0.01” Hg is 10 feet,
30.42-29.92 = .50” Hg
50 x 10’ = 500’
6,500 - 500 = 6,000’

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20
Q

The pressure altitude at a given location is indicated on the altimeter after the altimeter is set to

A

29.92”Hg

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21
Q

If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will

A

increase and the true altitude will increase

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22
Q

What indications are displayed by the miniature airplane in the turn coordinator?

A

Rate of roll and Rate of turn

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23
Q

During normal operation of a vacuum driven attitude indicator, what attitude indication should you see when rolling out from a 180 degree skidding turn to straight-and-level coordinated flight?

A

The miniature aircraft shows a turn in the direction opposite of the skid.

Sustained turns induce an error into the attitude indicator that is opposite the sustained turn; the longer the turn takes, the larger the induced error

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24
Q

During normal coordinated turns, what error due to precession should you observe when rolling out to straight and level from a 180 degree steep turn to the right?

A

The miniature aircraft would show a slight turn indication to the left

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25
Q

What information does a Mach meter present?

A

The ration of aircraft true airspeed to the speed of sound

26
Q

Error in both pitch and bank indication on an attitude indicator are usually at a maximum as the aircraft rolls out of a

A

180 degree turn

27
Q

If a 180 degree steep turn is made to the right and the aircraft is rolled out to straight-and-level flight by visual references, the attitude indicator

A

may show a slight climb and turn

28
Q

One characteristic that a properly functioning gyro depends upon for operation is the

A

resistance to deflection of the spinning wheel or disc

29
Q

How should you preflight check the altimeter prior to an IFR flight?

A

Set the altimeter to the current altimeter setting. The indication should be within 75 feet of the actual elevation for acceptable accuracy.

30
Q

When airspeed is decreased in a turn, what must be done to maintain level flight?

A

Decrease the angle of bank and/or increase the angle of attack

31
Q

The primary reason the pitch attitude must be increased, to maintain a constant altitude during a coordinated turn, is because the

A

vertical component of lift has decreased as the result of the bank

32
Q

When checking the sensitivity of a VOR receiver, the number of degrees in course changes as the OBS is rotated to move the CDI from center to the last dot on either side should be between

A

10 degrees and 12 degrees

33
Q

If in level flight and it becomes necessary to use an alternate source of static pressure vented inside the airplane, what should the pilot expect to see

A

The vertical speed indicator to momentarily show a climb

The altimeter indicates a slightly higher altitude than actual

The airspeed indicator indicates an airspeed greater than actual

34
Q

When using a VOT, what is the maximum tolerance allowed for an operational VOR

A

+/- 4 degrees

35
Q

When using a VOT to make a VOR receiver check, the CDI should be centered and the OBS should indicate that the aircraft is on the

A

360 degree radial

36
Q

How should the pilot make a VOR receiver check when the aircraft is located on the designated checkpoint on the airport surface?

A

Set the OBS on the designated radial. The CDI must center within +/- 4 degrees of that radial with a FROM indication

37
Q

When the CDI needle is centered during an airborne VOR check, the OBS indicator and the omni-bearing selector should read within

A

6 degrees of the selected radial

38
Q

While airborne, what is the maximum permissible variation between two indicated bearing when checking one VOR system against the other?

A

4 degrees

39
Q

Where can the VOT frequency for a particular airport be found?

A

Only in the Chart supplement

formerly called the Airport Facilities Directory

40
Q

Where can the VOR receiver ground checkpoint(s) for a particular airport be found?

A

Chart Supplement

41
Q

What is the maximum tolerance for the VOR indication when the CDI is centered and the aircraft is directly overtop the airborne checkpoint?

A

Plus or minus 6 degrees of the selected radial

42
Q

What wind condition prolongs the hazards of wake turbulence on a runway for the longest time?

A

Light quartering tailwind

43
Q

Wake turbulence is near maximum behind a jet transport after takeoff because

A

of the high angle of attack and high gross weight

44
Q

What effect would a light crosswind have on vortex behavior?

A

The upwind vortex would tend to remain over the runway

45
Q

When landing behind a large jet aircraft, at which point on the runway should you plan to land?

A

Beyond the jet’s touchdown point

46
Q

If both the ram air input and drain hole of the pitot system are blocked, what airspeed indication can be expected if large power changes are made?

A

Airspeed indicator would remain constant in level flight, even if power changes

47
Q

If both the ram air input and drain hole of the pitot system are blocked, what would you observe on the airspeed indicator when power is applied and a climb is initiated out of severe icing conditions

A

No change would occur during power input, but after a climb rate is established the airspeed indicator would show an increasing indicated airspeed.

48
Q

What indication should a pilot observe if an airspeed indicator ram air input and drain hole are blocked

A

The airspeed indicator will react as an altimeter

49
Q

Under which conditions is hydroplaning most likely to occur

A

During conditions of standing water, slush, high speed, and smooth runway textures

50
Q

What does the miniature aircraft of the turn coordinator display

A

The indicator first shows the rate of banking, and once stabilized, the turn rate.

51
Q

In a left turn, correct coordination is indicated by

A

The ball of the turn coordinator in the center

52
Q

During normal flight with a vacuum driven attitude indicator, control pressures normally should not move the horizon bar more than

A

one half bar width with not more than an additional one half bar width for normal flight deviation

53
Q

Which system has malfunctioned if your heading indicator is not moving?

A

Vacuum system or electrical power

54
Q

As you roll into a standard rate turn to the left from a southerly heading in the N hemisphere, how will the magnetic compass react

A

The compass will indicate a large turn to an easterly heading ahead of the aircraft’s heading

55
Q

The loss of an alternator or generator in an aircraft equipped with an all electronic flight display is considered to be

A

an emergency!

56
Q

If the Air Data Computer (ADC) is malfunctioning, which information becomes unreliable

A

PFD airspeed, altitude, and vertical speed

57
Q

The instruments for pitch are

A

attitude indicator, airspeed indicator, and vertical speed indicator

58
Q

When landing on a wet, smooth runway, your airplane begins to hydroplane. You should

A

raise the nose to increase aerodynamic drag

59
Q

In an autopilot controlled system, what device actually moves the control surfaces?

A

Servo

60
Q

If your altimeter is set to 30.42” Hg and the current reported altimeter setting is 29.82” Hg, is the actual altitude higher or lower than the indicated altitude

A

Lower than indicated

IFR written prep (5 decks)

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