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Brunei DCA CPL(A) VFR Communications study materials
Brunei DCA CPL(A) VFR Communications study resources

Brunei DCA CPL(A) VFR Communications practice questions

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Question 1Radio telephony general operating procedures and phraseology

On first contact with a Brunei ATS unit, which transmission order is correct?

  1. Message, then aircraft callsign, then the station being called
  2. Station being called, then aircraft callsign, then the message Correct answer.
  3. Aircraft callsign, then the station being called, then the message
  4. Aircraft callsign, message, then the station being called

Explanation

Standard radiotelephony discipline requires the called station to be named first so that the operator knows immediately whether the transmission concerns them. The calling station's identification follows, and only then is the message passed. Reversing this order wastes frequency time and can cause the message to be missed.

Question 2Radio telephony general operating procedures and phraseology

An aircraft transmits its callsign as 'November Delta Charlie Alpha Bravo'. What does this indicate?

  1. The aircraft registration letters are being spelled phonetically in full Correct answer.
  2. The pilot is requesting a discrete transponder code
  3. The aircraft is a helicopter on a special flight
  4. The flight is operating under instrument flight rules

Explanation

When individual letters of a registration must be spoken, the ICAO phonetic alphabet is used so each letter is unambiguous over a noisy channel. The words November, Delta, Charlie, Alpha and Bravo represent N, D, C, A and B. This spelling does not by itself convey flight rules, equipment type or a transponder request.

Question 3Radio telephony general operating procedures and phraseology

Which word or phrase is the standard radiotelephony term meaning 'I have received your transmission and understand it'?

  1. WILCO
  2. STANDBY
  3. ROGER Correct answer.
  4. SAY AGAIN

Explanation

ROGER means the transmission has been received in full and understood, but it carries no promise to act. WILCO adds the commitment to comply with the instruction received. STANDBY requests the caller to wait, and SAY AGAIN asks for a repetition.

Question 4Radio telephony general operating procedures and phraseology

A controller transmits an instruction and the pilot replies 'WILCO'. What has the pilot conveyed?

  1. The message is understood and will be complied with Correct answer.
  2. The pilot wishes the instruction to be repeated
  3. The message was received but no action is promised
  4. The pilot is unable to comply with the instruction

Explanation

WILCO is the standard abbreviation for 'will comply' and combines acknowledgement with a commitment to carry out the instruction. It therefore does more than simple receipt. If the pilot cannot comply, the correct response is UNABLE followed by a reason.

Question 5Radio telephony general operating procedures and phraseology

How should the digits of a transponder code 4270 be transmitted?

  1. Four two seven zero Correct answer.
  2. Four thousand two hundred seventy
  3. Four twenty-seven zero
  4. Forty-two seventy

Explanation

Transponder codes are spoken digit by digit, with each figure pronounced separately using the standard digit words. This avoids confusion between similar-sounding numbers. Grouping or reading the code as a whole number is not correct radiotelephony practice.

Question 6Radio telephony general operating procedures and phraseology

What does the phrase 'STANDBY' mean when used by an ATS unit?

  1. Cleared to proceed at your discretion
  2. Your transmission was unreadable
  3. The instruction has been cancelled
  4. Wait and I will call you back Correct answer.

Explanation

STANDBY tells the other station to wait because the controller cannot yet provide the requested information or clearance. It is not an approval or a clearance of any kind. The pilot should remain on frequency and await a further call.

Question 7Radio telephony general operating procedures and phraseology

Which transmission uses standard phraseology correctly to request a repeat of a clearance?

  1. Repeat clearance please
  2. Say again clearance Correct answer.
  3. Please repeat the clearance
  4. Clearance again

Explanation

The standard form places the instruction words SAY AGAIN before the item concerned, giving a short, unambiguous request. Plain conversational requests such as 'please repeat' are discouraged on air. Keeping to the prescribed words helps all listeners understand immediately.

Question 8Radio telephony general operating procedures and phraseology

Before transmitting on a control frequency, what should a pilot first confirm?

  1. That the transponder is switched to standby
  2. That the cabin crew have been briefed
  3. That the landing gear is down
  4. That the frequency is not already occupied by another transmission Correct answer.

Explanation

A pilot must listen out before pressing the transmit switch so that an ongoing exchange is not interrupted or blocked. Simultaneous transmissions cause interference and can obscure a safety-critical clearance. Only when the frequency is clear should the call be made.

Question 9Radio telephony general operating procedures and phraseology

A pilot's transmission is partially garbled by interference. Which reply by the controller best follows standard practice?

  1. Say again all after 'runway' Correct answer.
  2. Unable, frequency busy
  3. Standby, I will call you
  4. Roger, cleared to land

Explanation

When only part of a message is lost, the receiver asks for repetition of the portion after the last word correctly copied. This is efficient because the readable part need not be repeated. Asking for the whole message again wastes time when most of it was received.

Question 10Radio telephony general operating procedures and phraseology

Which items must always be read back to the controller?

  1. Clearances and instructions affecting safety, such as runway and altimeter settings Correct answer.
  2. Runway-in-use and surface wind
  3. Wind velocity and cloud base
  4. The ATIS letter and aircraft type

Explanation

Safety-related clearances and instructions must be read back so the controller can verify correct reception. Typical readback items include route clearances, runway-in-use, hold-short instructions, altimeter settings and transponder codes. Information such as weather reports is not normally read back in full.

Question 11Radio telephony general operating procedures and phraseology

A controller issues a clearance that the pilot does not understand. What is the correct response?

  1. Remain silent and wait for a repeat
  2. Request clarification before proceeding Correct answer.
  3. Comply with the part that seems clear
  4. Read back the clearance as heard and ask later

Explanation

A pilot must never act on a clearance that has not been fully understood. The correct action is to ask for clarification, for example by requesting the clearance again or querying the specific element. Silence or partial compliance can lead to a serious deviation.

Question 12Radio telephony general operating procedures and phraseology

How is an aircraft with registration V8-ABC correctly identified on first contact?

  1. V eight ABC
  2. Victor Alpha Bravo Charlie
  3. Eight Victor Alpha Bravo Charlie
  4. Victor eight Alpha Bravo Charlie Correct answer.

Explanation

The registration prefix and letters are spoken using the phonetic alphabet and standard digit words, in the order in which they appear. Each character is separated so the sequence is unambiguous. Abbreviating or reordering the characters is not correct practice.

Question 13Radio telephony general operating procedures and phraseology

What is the correct way to transmit the time 0930 in a position report?

  1. Nine thirty
  2. Half past nine
  3. Zero nine three zero Correct answer.
  4. Zero nine thirty

Explanation

Times are transmitted as four separate digits, with each figure spoken individually. Leading zeros must be included so the time is unambiguous. This convention avoids confusion between similar times and between hours and minutes.

Question 14Radio telephony general operating procedures and phraseology

A pilot wants to indicate that a transmission has been received but that no reply is required. Which term is appropriate?

  1. WILCO
  2. OVER
  3. AFFIRM
  4. ROGER Correct answer.

Explanation

ROGER acknowledges receipt and understanding without implying that a response is needed. OVER is used to invite a reply and marks the end of a transmission. WILCO commits the pilot to compliance, and AFFIRM answers a direct question in the affirmative.

Question 15Radio telephony general operating procedures and phraseology

When should a pilot use the word 'OVER'?

  1. When ending all contact with the unit
  2. When acknowledging a clearance
  3. When requesting a radio check
  4. When a reply from the other station is expected Correct answer.

Explanation

OVER signals the end of a transmission and indicates that the sender expects a response. It is used to keep the exchange flowing in an orderly manner. When no reply is expected, the term used is OUT.

Question 16Radio telephony general operating procedures and phraseology

A controller says 'RADIO CHECK'. What is the pilot expected to provide in reply?

  1. The aircraft's position and altitude
  2. A readability scale number and signal strength report Correct answer.
  3. The transponder code in use
  4. The destination aerodrome

Explanation

A radio check is answered by reporting readability on the standard five-point scale, for example 'readability five'. This tells the questioner how well the transmission was received. Position, altitude and route information are not part of the radio check reply.

Question 17Radio telephony general operating procedures and phraseology

What does the phrase 'SAY AGAIN' specifically request?

  1. Confirm the instruction is understood
  2. Repeat the last portion of the transmission
  3. Change to another frequency
  4. Repeat the entire transmission Correct answer.

Explanation

SAY AGAIN on its own asks for the previous transmission to be repeated in full. If only part is needed, it is qualified, for example 'say again all after'. A request to change frequency uses the word 'contact' or 'change to'.

Question 18Radio telephony general operating procedures and phraseology

A pilot is instructed to contact a new frequency. Which reply is standard?

  1. Changing to one one eight decimal seven, callsign Correct answer.
  2. Contact one one eight seven, callsign
  3. Roger, going now
  4. Frequency one one eight point seven, wilco

Explanation

The standard response states the new frequency in the prescribed digit-by-digit form, with 'decimal' for the point, followed by the aircraft callsign. This confirms the pilot has correctly copied the instruction. Casual replies such as 'going now' do not confirm the frequency.

Question 19Radio telephony general operating procedures and phraseology

During a readback, a controller replies 'READBACK CORRECT'. What does this confirm?

  1. The pilot must repeat the readback
  2. The clearance is cancelled
  3. The frequency is being changed
  4. The pilot's readback matched the issued clearance Correct answer.

Explanation

READBACK CORRECT tells the pilot that the repeated clearance matched what was issued, so the clearance may be acted upon. It is a verification tool that closes the communication loop. If the readback were wrong, the controller would correct it instead.

Question 20Radio telephony general operating procedures and phraseology

A pilot's first call to a new ATS unit should normally include which elements?

  1. Only the aircraft callsign and the word 'request'
  2. Aircraft callsign, position, altitude and the request Correct answer.
  3. Aircraft callsign, pilot name and aircraft colour
  4. Aircraft callsign, destination and fuel remaining

Explanation

The initial call establishes identity and gives the controller enough context to respond usefully. Including position, level and the nature of the request lets the controller plan without a further exchange. Omitting these details forces additional transmissions on a busy frequency.

Question 21Radio telephony general operating procedures and phraseology

Two aircraft transmit simultaneously and both are unreadable. What is the correct procedure?

  1. Both continue transmitting until understood
  2. The controller should ignore both transmissions
  3. Both should change frequency immediately without instruction
  4. Each station should pause and allow the other to transmit, with the controller resolving the conflict Correct answer.

Explanation

Simultaneous transmissions cause a blocked or garbled signal, so the parties must stop and re-establish orderly access to the frequency. Normally the controller manages the sequence by addressing one aircraft at a time. Uncoordinated frequency changes would disrupt control.

Question 22Radio telephony general operating procedures and phraseology

A pilot reads back a clearance incorrectly. What is the controller's required action?

  1. Ask the pilot to change frequency
  2. Accept the readback to save time
  3. Immediately correct the readback and confirm the correct version Correct answer.
  4. Cancel the flight's clearance entirely

Explanation

The purpose of readback is to detect errors before they become safety events, so a discrepancy must be corrected at once. The controller states the correct version and obtains a fresh readback. Accepting a wrong readback defeats the entire verification process.

Question 23Radio telephony general operating procedures and phraseology

Why is standard phraseology preferred over plain conversational language on ATS frequencies?

  1. It is faster to type in written records
  2. It is required only for international flights
  3. It allows pilots to omit readback of clearances
  4. It reduces ambiguity and transmission length, improving safety and frequency capacity Correct answer.

Explanation

Standardised phrases have a single agreed meaning, so they are less likely to be misunderstood by speakers of different languages or over poor radio links. They are also concise, which frees frequency time for other traffic. Readback obligations are unaffected by the use of standard phraseology.

Question 24Radio telephony general operating procedures and phraseology

An aircraft's callsign is long and similar to another aircraft on frequency. What is the best practice for the controller?

  1. Use abbreviated callsigns for both aircraft to save time
  2. Use the full callsign until identification is assured, then abbreviate only when no confusion can arise Correct answer.
  3. Use the full callsign on every transmission to both aircraft
  4. Ask one aircraft to leave the frequency

Explanation

Full callsigns are used on initial contact and whenever confusion is possible, including when similar callsigns are in use. Once positive identification is established, abbreviation may be used, but only if it cannot create ambiguity. Safety takes priority over brevity.

Question 25Radio telephony general operating procedures and phraseology

A pilot hears a clearance addressed to another aircraft with a similar callsign. What is the safest response?

  1. Act on the clearance because it sounded correct
  2. Wait and, if in doubt, query the controller to confirm which aircraft the clearance applies to Correct answer.
  3. Assume the clearance is for the other aircraft and ignore it
  4. Read back the clearance as if it were addressed to the pilot

Explanation

Similar callsigns create a real risk of a pilot applying another aircraft's clearance to themselves. If there is any doubt, the pilot should query the controller rather than act. Confirming the addressee prevents a serious clearance error.

Question 26Radio telephony general operating procedures and phraseology

An ATS unit replies to your call with the single word 'STANDBY'. What does this indicate?

  1. Wait, I will call you back Correct answer.
  2. Cleared as requested
  3. Your transmission was unreadable
  4. Change to another frequency

Explanation

'STANDBY' means the pilot should wait and the unit will initiate the next contact. It is not an approval, so the pilot must not proceed with the requested action until a further clearance is received. It also does not signal a frequency change or a reception problem.

Question 27Radio telephony general operating procedures and phraseology

A pilot wishes to transmit the figures 118.7 as a frequency. Which spoken form follows standard radiotelephony practice?

  1. One eighteen and seven tenths
  2. One hundred eighteen point seven
  3. Eleven eight decimal seven
  4. One one eight decimal seven Correct answer.

Explanation

Each digit of a frequency is spoken separately, with the decimal point transmitted as 'DECIMAL'. This avoids confusion between similar-sounding numbers and keeps the transmission unambiguous. Grouping the digits into hundreds or omitting a digit is not standard practice.

Question 28Radio telephony general operating procedures and phraseology

A pilot has just landed and wishes to leave the tower frequency. Which transmission is correct?

  1. Tower, V8-ABC, runway vacated, request frequency change Correct answer.
  2. Tower, V8-ABC, standing by for instructions
  3. Tower, V8-ABC, request taxi clearance
  4. Tower, V8-ABC, request start-up approval

Explanation

When the pilot needs to leave a frequency, the request is made with 'REQUEST FREQUENCY CHANGE', normally after reporting the runway vacated. This tells the controller the pilot is ready to be handed to the next unit. Requests for taxi, start-up or standby do not address leaving the frequency.

Question 29Radio telephony general operating procedures and phraseology

A controller needs an aircraft to confirm that it has received and understood a long clearance. Which phrase should the controller use?

  1. V8-ABC, CORRECT
  2. V8-ABC, SAY AGAIN
  3. V8-ABC, ACKNOWLEDGE Correct answer.
  4. V8-ABC, STANDBY

Explanation

'ACKNOWLEDGE' instructs the receiving station to confirm that a message has been received and understood. It is distinct from a readback request, which asks for the content to be repeated. 'SAY AGAIN' asks for a repeat, 'STANDBY' asks the aircraft to wait, and 'CORRECT' confirms that a previous readback was right.

Question 30Radio telephony general operating procedures and phraseology

You call an approach unit and give your position, but the controller's reply is cut off by a simultaneous transmission from another aircraft. What is the most appropriate action?

  1. Assume the clearance was for your aircraft and continue as planned
  2. Immediately retransmit your position report in full without waiting
  3. Wait briefly for the interference to clear, then call the unit again and state that the reply was unreadable Correct answer.
  4. Switch to the emergency frequency and request a repeat there

Explanation

When a reply is lost to interference, the pilot should allow a short pause so that the other transmission can finish, then re-establish contact and report that the reply was unreadable. This lets the controller repeat the message in a clear slot. Acting on an unheard clearance or abandoning the frequency is unsafe.

Question 31Aerodrome and ground movement communications

An aircraft is ready to taxi from a parking position at Brunei International Airport. Which radio call correctly requests taxi clearance?

  1. Brunei Approach, Alpha Bravo Charlie, taxiing to Runway 03.
  2. Brunei Ground, Alpha Bravo Charlie, request start-up and airways clearance.
  3. Brunei Ground, Alpha Bravo Charlie, Cessna 172 at the general aviation apron, request taxi to Runway 03. Correct answer.
  4. Brunei Tower, Alpha Bravo Charlie, ready for departure Runway 03.

Explanation

The initial taxi call goes to Ground and should identify the station called, the aircraft callsign, the type or position of the aircraft, and the request including the intended runway. Tower handles take-off and landing clearances, while Approach handles arriving and departing traffic in the terminal area.

Question 32Aerodrome and ground movement communications

Ground control transmits: 'Alpha Bravo Charlie, taxi to holding point Runway 03 via taxiway Bravo, hold short of Runway 21.' What must the pilot do?

  1. Taxi the entire route and cross Runway 21 without further clearance.
  2. Stop immediately on taxiway Bravo and request a new route.
  3. Taxi via taxiway Bravo and stop before entering Runway 21, awaiting further clearance. Correct answer.
  4. Proceed directly to Runway 03 threshold using any convenient taxiway.

Explanation

A 'hold short' instruction means the aircraft must stop before the specified runway and may not enter or cross it without an explicit clearance. The route via taxiway Bravo remains valid up to that point. Crossing an active runway always requires a separate, explicit clearance.

Question 33Aerodrome and ground movement communications

Which phrase should a pilot use to read back a taxi clearance correctly?

  1. Roger, Alpha Bravo Charlie.
  2. Alpha Bravo Charlie, taxi to holding point Runway 03 via Bravo, hold short of Runway 21. Correct answer.
  3. Alpha Bravo Charlie, wilco.
  4. Affirm, Alpha Bravo Charlie.

Explanation

A read-back must repeat the substantive elements of the clearance, including the route and any hold-short restriction, together with the aircraft callsign. 'Roger' and 'wilco' merely acknowledge receipt and do not confirm the contents. Full read-back lets the controller detect and correct any misunderstanding.

Question 34Aerodrome and ground movement communications

A pilot wishes to cross an active runway while taxiing. What is the correct action?

  1. Cross after checking that the approach is clear, without advising ATC.
  2. Request and obtain an explicit clearance to cross before entering the runway. Correct answer.
  3. Cross as soon as the aircraft ahead has crossed.
  4. Cross only if the runway holding point markings are not visible.

Explanation

Entry into or crossing of any active runway requires a specific clearance from the aerodrome controller. A pilot may never cross on the basis of a visual check alone, because the controller is responsible for coordinating all runway users. The clearance must be obtained and read back before the aircraft passes the holding point.

Question 35Aerodrome and ground movement communications

Tower instructs: 'Alpha Bravo Charlie, line up and wait Runway 03.' What does this authorise?

  1. Enter Runway 03 and position for departure, but do not begin the take-off roll. Correct answer.
  2. Remain at the holding point until a take-off clearance is issued.
  3. Backtrack Runway 03 and vacate at the next taxiway.
  4. Enter Runway 03 and begin the take-off roll immediately.

Explanation

'Line up and wait' authorises the aircraft to enter the runway and take up the departure position, but take-off may not commence until a separate take-off clearance is received. It is not a take-off clearance and does not authorise backtracking unless that is separately instructed.

Question 36Aerodrome and ground movement communications

A controller says: 'Alpha Bravo Charlie, hold position.' What is the correct pilot response?

  1. Vacate the taxiway at the next intersection.
  2. Turn the aircraft around and return to the apron.
  3. Stop the aircraft immediately and remain in position, then read back the instruction. Correct answer.
  4. Continue taxiing slowly while awaiting further instructions.

Explanation

'Hold position' means the aircraft must stop immediately and remain exactly where it is until further advice. The pilot should acknowledge with the callsign and read back the instruction so the controller knows it has been received. Continuing to move could cause a collision or runway incursion.

Question 37Aerodrome and ground movement communications

Ground transmits: 'Alpha Bravo Charlie, give way to the Boeing 737 on your right.' What should the pilot do?

  1. Continue taxiing and expect the 737 to stop.
  2. Stop and allow the Boeing 737 to pass before continuing. Correct answer.
  3. Request a new taxi route from Tower.
  4. Accelerate to clear the intersection first.

Explanation

A 'give way' instruction requires the pilot to yield priority to the specified traffic, normally by stopping and allowing it to pass. The pilot should acknowledge the instruction and monitor the other aircraft's movement. Right-of-way instructions from Ground must be followed even if the other aircraft appears distant.

Question 38Aerodrome and ground movement communications

Which report should a pilot make when the aircraft has vacated the runway after landing?

  1. 'Alpha Bravo Charlie, request taxi.'
  2. 'Alpha Bravo Charlie, runway vacated.' Correct answer.
  3. 'Alpha Bravo Charlie, standby.'
  4. 'Alpha Bravo Charlie, landed.'

Explanation

The standard report after leaving the runway is to state the callsign and that the runway has been vacated, optionally naming the exit. This tells Tower that the runway is clear so other traffic may use it. A request for taxi may follow, but the vacating report comes first.

Question 39Aerodrome and ground movement communications

An aircraft is instructed: 'Alpha Bravo Charlie, taxi via Alpha, Charlie, hold short of Runway 21 at intersection Charlie.' Which read-back is correct?

  1. 'Alpha Bravo Charlie, roger, taxi Alpha, Charlie.'
  2. 'Alpha Bravo Charlie, holding short of Runway 21, request cross.'
  3. 'Alpha Bravo Charlie, taxi via Alpha, Charlie, hold short of Runway 21 at Charlie.' Correct answer.
  4. 'Alpha Bravo Charlie, taxi via Alpha and Charlie to Runway 21.'

Explanation

A complete read-back repeats the taxi route, the hold-short instruction and the specific intersection, together with the callsign. Omitting the intersection or the hold-short element leaves the controller unable to confirm the clearance has been understood. The read-back should mirror the instruction's sequence.

Question 40Aerodrome and ground movement communications

What does the instruction 'Alpha Bravo Charlie, backtrack Runway 03' mean?

  1. Hold at the runway holding point until further advised.
  2. Enter the runway and take off in the reverse direction.
  3. Vacate the runway and re-enter at the opposite threshold.
  4. Taxi along the runway in the direction opposite to the landing direction, then turn to face the take-off direction. Correct answer.

Explanation

Backtracking means taxiing along the runway itself, typically away from the intended take-off direction, so the aircraft can turn and line up facing the correct way. It requires a specific clearance because the aircraft occupies the runway. It is not a take-off clearance.

Question 41Aerodrome and ground movement communications

A pilot is unsure whether a taxi clearance was for taxiway Bravo or Delta. What is the safest action?

  1. Stop the aircraft and ask the controller to repeat the clearance. Correct answer.
  2. Follow the aircraft ahead, assuming it has the same route.
  3. Request a new clearance from Approach.
  4. Continue along the more likely taxiway and confirm later.

Explanation

When any part of a clearance is uncertain, the pilot must stop and request clarification or repetition before proceeding. Continuing on assumption risks a runway incursion or a conflict with other traffic. Clarification is always preferable to guessing, and the controller expects such requests.

Question 42Aerodrome and ground movement communications

Which call correctly reports an aircraft holding at the holding point and ready for departure?

  1. 'Brunei Ground, Alpha Bravo Charlie, holding point Runway 03, ready for departure.'
  2. 'Brunei Tower, Alpha Bravo Charlie, request taxi to Runway 03.'
  3. 'Brunei Approach, Alpha Bravo Charlie, ready for departure.'
  4. 'Brunei Tower, Alpha Bravo Charlie, holding point Runway 03, ready for departure.' Correct answer.

Explanation

The ready-for-departure report is made to Tower, the aerodrome controller who issues take-off clearances. It should include the callsign, the holding point and the phrase 'ready for departure'. Ground handles taxiing, and Approach handles the terminal area, so neither should receive this call.

Question 43Aerodrome and ground movement communications

Tower says: 'Alpha Bravo Charlie, after departure, turn right heading 090.' When does the turn begin?

  1. At the runway holding point before take-off.
  2. Only after contacting Approach.
  3. After becoming airborne, as the aircraft climbs away from the runway. Correct answer.
  4. Immediately upon receiving the instruction.

Explanation

The phrase 'after departure' means the turn is to be made once the aircraft is airborne and established in the climb. It is part of the departure clearance and should be read back. Executing the turn while still on the runway would be dangerous.

Question 44Aerodrome and ground movement communications

A controller asks: 'Alpha Bravo Charlie, say your position.' What is the pilot expected to provide?

  1. The aircraft's cruising altitude.
  2. The aircraft's current location on the aerodrome, such as a named taxiway or intersection. Correct answer.
  3. The aircraft's registration and type.
  4. The aircraft's destination and fuel endurance.

Explanation

'Say your position' asks the pilot to describe where the aircraft currently is, typically by naming the taxiway, intersection or holding point. The controller uses this to maintain situational awareness and separation on the manoeuvring area. It is not a request for flight-plan or performance data.

Question 45Aerodrome and ground movement communications

An aircraft is instructed to 'hold short of Runway 21 at intersection Charlie'. The aircraft stops at the correct point. What should the pilot then do?

  1. Switch to Tower and request take-off clearance.
  2. Taxi onto the runway shoulder to keep the taxiway clear.
  3. Continue across the runway once the approach is visually clear.
  4. Remain stopped and wait for an explicit crossing clearance, monitoring the frequency. Correct answer.

Explanation

Holding short requires the aircraft to remain at the holding point until the controller issues a specific crossing or further taxi clearance. A visual check of the approach does not authorise entry. The pilot should stay on the frequency so the clearance is not missed.

Question 46Aerodrome and ground movement communications

Ground transmits: 'Alpha Bravo Charlie, taxi to the apron via Alpha, cross Runway 03.' What does this clearance authorise?

  1. Taxi via Alpha and line up on Runway 03.
  2. Taxi via Alpha and cross Runway 03 as part of the cleared route. Correct answer.
  3. Taxi via Alpha and hold short of Runway 03.
  4. Taxi via Alpha and take off from Runway 03.

Explanation

When a taxi clearance explicitly includes the word 'cross' followed by a runway designator, it authorises the aircraft to cross that runway as part of the route. The pilot should read back the route and the crossing element. A hold-short instruction would be required if crossing were not permitted.

Question 47Aerodrome and ground movement communications

A pilot receives a clearance while another aircraft is transmitting, and only part of the message is heard. What is the correct course of action?

  1. Ask the controller to repeat the clearance in full before acting on it. Correct answer.
  2. Continue taxiing slowly until the message is understood.
  3. Assume the clearance was as expected and proceed.
  4. Wait for the other aircraft to repeat the message.

Explanation

A clearance that is only partly received cannot be safely acted upon, so the pilot must request repetition. Assuming the content is dangerous because clearances may contain unexpected restrictions. The controller will repeat the message once the frequency is clear.

Question 48Aerodrome and ground movement communications

Which phraseology correctly advises the controller that the aircraft is compelled to stop because of a problem on the taxiway?

  1. 'Alpha Bravo Charlie, negative.'
  2. 'Alpha Bravo Charlie, standing by.'
  3. 'Alpha Bravo Charlie, holding position due blocked taxiway.' Correct answer.
  4. 'Alpha Bravo Charlie, request taxi.'

Explanation

When a pilot must stop for a reason such as an obstruction, the controller should be told the callsign, that the aircraft is holding position, and the reason. This allows Ground to coordinate other traffic and assist. Vague acknowledgements do not convey the problem.

Question 49Aerodrome and ground movement communications

A pilot is cleared to taxi via taxiway Alpha, but the taxiway markings show Alpha is closed by a cross. What should the pilot do?

  1. Continue along Alpha because the clearance takes priority over markings.
  2. Stop and advise the controller that the taxiway appears closed, requesting clarification. Correct answer.
  3. Turn onto the nearest open taxiway without advising ATC.
  4. Proceed across the closed marking to reach the runway quickly.

Explanation

Markings indicating a closed taxiway must be respected, and the discrepancy with the clearance should be reported so the controller can issue a revised route. Proceeding onto a closed section could endanger the aircraft and any works in progress. The pilot should stop and clarify rather than deviate unannounced.

Question 50Aerodrome and ground movement communications

Tower says: 'Alpha Bravo Charlie, cancel take-off clearance, I say again, cancel take-off clearance.' What must the pilot do?

  1. Continue the take-off because the aircraft is already rolling.
  2. Abandon the take-off, stop safely on the runway, and advise Tower. Correct answer.
  3. Turn off the runway at the next exit while accelerating.
  4. Continue and request a reason for the cancellation.

Explanation

A cancelled take-off clearance must be complied with immediately; the pilot should stop the aircraft as safely as possible and inform Tower of the situation. Continuing the take-off could conflict with an obstacle or another aircraft on the runway. The reason can be established after the aircraft is stopped.