Intercepting Aircraft

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Questions and Answers

Which of the following signals mean that grave and imminent danger threatens, and immediate assistance is requested?

A radiotelephony distress signal consisting of the spoken word MAYDAY

A distress message sent via data link which transmits the intent of the word MAYDAY

Rockets or shells throwing red lights, fired one at a time at short intervals

A signal made by radiotelegraphy or by any other signalling method consisting of the group SOS (. ———. in the Morse Code) (correct)

Which of the following signals is used to attract attention, make known its position and obtain help by an aircraft in distress?

A signal made by radiotelegraphy or by any other signalling method consisting of the group SOS (. ———. in the Morse Code) (correct)

A radiotelephony distress signal consisting of the spoken word MAYDAY

A distress message sent via data link which transmits the intent of the word MAYDAY

Rockets or shells throwing red lights, fired one at a time at short intervals

Which of the following signals is used as a radiotelephone alarm signal?

A parachute flare showing a red light

A signal made by radiotelegraphy or by any other signalling method consisting of the group SOS (. ———. in the Morse Code)

Two substantially sinusoidal audio frequency tones transmitted alternately with frequencies of 2 200 Hz and 1 300 Hz (correct)

A series of twelve dashes sent in one minute, the duration of each dash being four seconds and the duration of the interval between consecutive dashes one second

Which of the following signals indicates the direction to be used by aircraft for landing and take-off?

A horizontal white or orange landing T Signup and view all the answers

What does a double white cross displayed horizontally indicate?

That the aerodrome is being used by gliders and that glider flights are being performed Signup and view all the answers

In which direction should turns be made before landing and after take-off when a right-hand arrow of conspicuous colour is displayed?

Right Signup and view all the answers

What does a set of two digits displayed vertically at or near the aerodrome control tower indicate?

The direction for take-off, expressed in units of 10 degrees Signup and view all the answers

Which of the following signals indicates that an aircraft is cleared to land at an aerodrome?

Steady green Signup and view all the answers

What does a horizontal red square panel with one yellow diagonal indicate in a signal area?

Special precautions must be observed while approaching or landing Signup and view all the answers

How does an aircraft acknowledge a signal when on the ground during the hours of daylight?

By moving the aircraft's ailerons or rudder Signup and view all the answers

What signals are used to warn an unauthorized aircraft flying in or about to enter a restricted, prohibited, or danger area?

A series of projectiles discharged from the ground at intervals of 10 seconds, each showing red and green lights or stars Signup and view all the answers

Which of the following signals mean that an aircraft wishes to give notice of difficulties which compel it to land without requiring immediate assistance?

The repeated switching on and off of the landing lights Signup and view all the answers

What is the response by the intercepted aircraft when the intercepting aircraft initiates the signal of rocking aircraft and flashing navigational lights at irregular intervals?

An abrupt breakaway manoeuvre from the intercepted aircraft consisting of a climbing turn of 90 degrees or more without crossing the line of flight of the intercepted aircraft Signup and view all the answers

What is the action required to be taken by the intercepted aircraft when the intercepting aircraft initiates the signal of lowering landing gear, showing steady landing lights and overflying runway in use or helicopter landing area?

Lowering landing gear, (if fitted), showing steady landing lights and following the intercepting aircraft and, if, after overflying the runway in use or helicopter landing area, landing is considered safe, proceeding to land Signup and view all the answers

What is the response by the intercepting aircraft when it is desired that the intercepted aircraft follow the intercepting aircraft to an alternate aerodrome?

The intercepting aircraft raises its landing gear (if fitted) and uses the Series 1 signals prescribed for intercepting aircraft Signup and view all the answers

Study Notes

Distress Signals

Grave and Imminent Danger - A series of five short blasts followed by one long blast on a whistle, foghorn, or siren.
Aircraft in Distress - A continuous signal of an explosion or a series of flashes, or a combination of the two, at as long intervals as possible.

Radiotelephone Alarm Signal

Mayday - This signal is used when an aircraft encounters grave and imminent danger and immediate assistance is requested.

Landing and Take-off Signals

Right-hand Arrow - Turns should be made to the right before landing and after taking off.
Horizontal Red Square Panel with One Yellow Diagonal - This signal indicates that the aerodrome is closed.
Signal to Land - A green light displayed horizontally in a signal area indicates that the aircraft is cleared to land at an aerodrome.

Aerodrome Signals

Two Digits Displayed Vertically - These digits indicate the runway to be used for landing and takeoff.
Double White Cross Displayed Horizontally - Indicates a closed runway or a runway that is not to be used.

Ground Signals

Acknowledgment of Signal - During daylight hours, an aircraft on the ground acknowledges a signal by flashing the landing lights.

Restricted, Prohibited, or Danger Areas

Warnings - An aircraft flying in or about to enter a restricted, prohibited, or danger area is warned by the display of a red flag.

Notices of Difficulties

Aircraft in Difficulty - An aircraft wishing to give notice of difficulties which compel it to land without requiring immediate assistance transmits a notice of the difficulties and the estimated time required to prepare for landing.