DGCA Air Navigation: Warnings & Recording (GPWS · ACAS · CVR/FDR) Questions
72 exam-style Warnings & Recording (GPWS · ACAS · CVR/FDR) questions for the DGCA Air Navigation paper (CPL · ATPL · PPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
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Q1
On receipt of a TCAS RA your action is to:
- A initiate the required manoeuvre immediately
- B make a note of the details.
- C request a flight clearance deviation from ATC.
- D Do nothing until a TA is received.
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Correct answer: A. initiate the required manoeuvre immediately
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Q2
An altitude alerting system must at least be capable of alerting the crew on: 1. Approaching selected altitude 2. Abnormal gear/flap combination 3. Excessive vertical speed 4. Excessive terrain closure 5. Excessive deviation from selected altitude 6. Failure to set SPS or RPS as required
- A 1&3
- B 2&5
- C 4&6
- D 1&5
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Correct answer: D. 1&5
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Q3
An aircraft that is assessed as not being a threat would be indicated on a TCAS system as:
- A a solid red square
- B a solid white or cyan diamond
- C a hollow white or cyan diamond
- D a solid yellow circle
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Correct answer: C. a hollow white or cyan diamond
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Q4
The input to a basic stall warning system are:
- A Angle of attack
- B IAS
- C Slat/flap position
- D Mno
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Correct answer: A. Angle of attack
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Q5
Which of the following statements concerning TCAS is correct:
- A TCAS 2 provides avoidance instructions in the vertical and horizontal planes.
- B TCAS 2 cannot provide information on non-SSR equipped intruders.
- C TCAS 2 requires Mode S to be fitted to other aircraft.
- D TCAS 2 provides advice on which way to turn.
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Correct answer: B. TCAS 2 cannot provide information on non-SSR equipped intruders.
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Q6
According to JAR OPS subpart K, when must the DFDR on a 12 seat turbo prop a/c begin recording?
- A Switch on until switch off
- B From before the aircraft is capable of moving under its own power to after the a/c is no longer capable of moving under its own power
- C From lift off until the weight on wheels switch is made on landing
- D At commencement of the taxi to turning off the runway
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Correct answer: B. From before the aircraft is capable of moving under its own power to after the a/c is no longer capable of moving under its own power
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Q7
Where in the aircraft does JAR require the FDR to be fitted:
- A At the back
- B At the front
- C In the wings
- D In the undercarriage bay
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Correct answer: A. At the back
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Q8
With reference to Traffic Collision Avoidance Systems. The difference between TCAS I and II is that:
- A TCAS II can provide Traffic Advisories and Resolution Advisories whilst TCAS I can only provide Traffic Advisories .
- B TCAS II can only be fitted to large aircraft which carry more than 30 passengers. Whilst TCAS I can be fitted to any aircraft.
- C TCAS I can be fitted to aircraft which carry transponders with Mode A only whilst TCAS II can only be fitted to aircraft whose transponders include either Mode C or Mode S.
- D TCAS II can only be fitted to aircraft which are equipped with EFIS
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Correct answer: A. TCAS II can provide Traffic Advisories and Resolution Advisories whilst TCAS I can only provide Traffic Advisories .
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Q9
What is the EGPWS mode 3 audible alert?
- A don't sink, don't sink” followed by “whoop, whoop, pull up” if the sink rate exceeds a certain value.
- B don't sink, don't sink” followed immediately by “whoop, whoop, pull up”
- C “don't sink, don't sink” continuously.
- D “Terrain, don't sink” continuously.
Show answer
Correct answer: C. “don't sink, don't sink” continuously.
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Q10
Which of the following are modes of the GPWS? i excessive sink rate ii altitude loss after take-off or go-around iii excessive glideslope deviation iv high climb rate v flaps in the incorrect position vi high altitude descent vii stall
- A i ii iii v
- B ii iii v vii
- C i ii iii vii
- D iii iv v vi
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Correct answer: A. i ii iii v
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Q11
An FDR fitted to an aircraft of over 5700kgs after Apr 98 must record for:
- A 10 hours
- B 25 hours
- C 30 minutes
- D 60 minutes
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Correct answer: B. 25 hours
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Q12
The aural messages provided by TCAS II are:
- A Threat, Climb; Threat, Descend.
- B Climb left; Climb right; Descend left; Descend right
- C Climb; Descend; Increase climb; Increase Descent.
- D Turn left, Turn Right, Increase Turn, Decrease Turn
Show answer
Correct answer: C. Climb; Descend; Increase climb; Increase Descent.
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