40 questions hdhs
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40 questions
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Distance on the earths surface is measured in nautical miles(nm) which of the following is true.
• One nm equals 1/10000 of the distance from the north pole to the equator
• One nm is equal to one minute of latitude• One nm is equal to 5280 feet• One nm is equal to one minute of longitude
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Calibrated air speed equals indicated air speed plus corrections for
• Pressure and instrument error• Instrument error only• Altitude error• Pressure error only
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Oslo airport(norway) is due north of braunchweig airfield near hannover (germany). If their latitudes are 59 53N and 52 20N
respectively. How far are they apart?
• 454nms• 445nms• 453nms• 554nms
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A hercules is flying at a groundspeed of 210kts. How far will it travel in 3 hours?
• 210nms• 630nms• 70nms• 630km• D=v X t
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Universal time(UT) is ised as the standard in military and commercial aviation. What other name is this
known as?
• British summer time• European daylight saving time• Greenwich meantime• Local time
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A vector is a representation on paper of,
• Speed• Direction• Time• Direction and speed
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In the air triangle the heading vector contains two components. They are:
• Heading and true airspeed• Heading and wind velocity• Heading and groundspeed• Heading and drift
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You are flying at 120kts groundspeed, how long will it take to fly 20nms?
• 10 mins• 60 mins• 6 mins• 2 mins
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An aircraft departs from base but does not arrive at the destination, on its Estimated Time of Arrival. What
action will air traffic control take?
• Initiate overdue action• Close down• No immediate action is required• Contact the departure base
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An aircraft is flying from point A to point B, Halfway a pinpoint fix shows it to be off track. A line between
point A and the fix would be known as:
• Track required• Track made good• Drift• Revised Track
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Using the 1 in 60 rule, calculate how many miles off track an aircraft will be, if it flies 60nms with
a track error of 2 degrees.• 60nms• 6nms• 2nms• 4nms
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An aircraft is flying from A to B, after 20nms it is found to be 3nms off track. What is the track
error?• 2 degrees• 9 degrees• 6 degrees• 4 degrees
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An aircraft flying from A to B, finds that after 30nms, it is 4nms off track. If it has a further 60nms to travel.
What is the required closing angle?
• 2 degrees• 6 degrees• 4 degrees• 3 degrees
• ?
30nm 60nm
4nm
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An aircraft when flying from A to B is found to be off track at the pinpoint shown on the diagram. The pilot calculates the track
error as 12 degrees and the closing angle as 8 degrees. By how much does the pilot have to turn to reach point B
• 12 degrees to the right• 8 degrees to the right• 20 degrees to the right• 4 degrees to the right
TE CA
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An Aircraft flying from A to B finds that after 40nms it is 4nms off track. If it has a further 60nms to travel by how much does the
pilot need to turn to regain the intended track at B
• 10 degrees• 6 degrees• 12 degrees• 4 degrees
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All R.A.F. Aircraft are equipped with a Direct Indicating Compass (DIC). Why is this?
• The DIC gives a reading of true heading• The DIC is the most accurate compass system
available• The DIC is reliable and need no power supply• The DIC is not affected by turns or
accelerations
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Where are variation values at their greatest?
• At the equator• In the southern hemisphere• In the northern hemisphere• In polar regions
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What principle does an inertial navigation system use, to calculate the position of the
aircraft?• It uses compass heading and doppler values to
compute aircraft position• The navigator must update the inertial
navigation system all the time• A gyroscope feeds position to the computer• It is set accurately on the ground and then
measures the accelerations in the fore, aft and lateral
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Which of the following is not a component within a Gyro-magnetic system
• A turn/acceleration cut out switch • A gyroscope• A flux valve magnetic detector• A suspended magnet
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In order to fly in a visual circuit a trainee pilot requires
• Visibility and cloud base conditions to meet the aerodrome controller’s requirements
• No wind• Good visibility and no cloud in the sky• Good visibility and no wind
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Why does an aircraft take off into wind
• To take off at a lower airspeed• To decrease the length of take off run• To increase groundspeed at take off• To use the full length of the runway
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The airfield has a covering of shallow fog. A pilot circling directly overhead, sees the runway lights clearly. However , on the
approach to land, he may have great difficulty in seeing some lights. Why is this?
• Runway lights are designed to be seen from high level only
• The thickest fog always settles at the end of the runway
• Fog is more dense, closer to the ground• Fog will appear thicker when on the glide
path, because the pilot is looking at a shallower angle
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What problems can be caused by heavy rain?
• Heavy snow• Runway Visual Range• Thunderstorms• Restricted visibility and flooded runway
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A flight briefing indicated icing conditions on route. The aircraft has no ice protection. What advice would you
give to a novice pilot.
• Plan a near route avoiding icing conditions, or cancel the flight
• Go slower because the icing will have less effect
• Fly above the cloud• Go faster because the icing will have less
effect
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The latitude of a point in its distance measured in degrees and minutes
• From the true south pole• North or south of the equator• East or west of Greenwich• From the true North Pole
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Dundee Is due north of Abergavenny. If their latitudes are 56 27N and 51 50N, how far apart
are they?• 277nms• 277kms• 323nms• 323kms
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When RAS is corrected for altitude and temperature, it becomes
• Indicated Groundspeed• Mach Number• True Air Speed (TAS)• Indicated Air Speed
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How fast must an aircraft fly to cover 1200nm in 3hours
• 3600kts• 400kts• 800kts• 400mph
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In the air triangle shown below. Name the components of the third side, represented by a
dotted line• Wind Speed and Direction• Heading and true airspeed• Drift and groundspeed• Drift
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You are flying in a tornado at 420kts groundspeed. How many nms do you travel each
minute• 8nms• 6nms• 7nms• 42nms
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An aircraft is flying from point A to point B. Halfway a pinpoint fix shows it to be off track. A line between point A and the fix would
be known as track.
• Track required• Drift• Revised track• Track made good
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An aircraft is flying from A to B. after 20nms it is found to be 3nms off track.
What is the track error• 2 degrees• 9 degrees• 4 degrees• 6 degrees
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A gyro cannot be perfect, and so over a period of time it becomes inaccurate, this is called?
• Gyro rigidity• Variation• Gyro wander• Turn/acceleration error
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Which of the following statements, about the gyro-magnetic compass is true?
• The flux-valve controls the speed of the gyroscope
• When the aircraft climbs or descends, the flux valve takes over from the gyroscope
• The gyroscope takes over from the flux valve, whenever the aircraft turns
• The gyro-magnetic compass is less accurate than the Direct Indicating Compass
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As a compass nears the magnetic north pole, the compass detector will try to point at the
magnetic material inside the earth. This is called:
• Drop• Variation• Wander• Dip
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A wind is blowing at 90 degrees angle off the runway direction, if the wind speed is 20kts. What is the
crosswind component?
• 20 kts• 12 kts• 10 kts• 2 kts
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What can be the effects of heavy icing, on the aircraft performance?
• There is no adverse effect on the aircraft performance
• It will fly much slower• Loss of aerodynamics only• Loss of aerodynamics and reduced engine
performance
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During periods of poor visibility due to fog, ATC will advise the pilot of the slant visibility along the runway.
This visibility is called:
• Runway Range• Glide Slope Visibility• Restricted visibility and flooded runway• Heavy snow
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Where are variation values at their greatest.
• In the northern hemisphere• In polar regions• In the southern hemisphere• At the equator