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🌡️ TEMPERATURE EFFECT ON TRUE ALTITUDE📌 An altimeter measures pressure, not true geometric height. Temperature changes t...
24/09/2026

🌡️ TEMPERATURE EFFECT ON TRUE ALTITUDE

📌 An altimeter measures pressure, not true geometric height. Temperature changes the spacing between pressure levels, so indicated altitude can differ from true altitude.

● Warm Air
• Pressure levels expand and become farther apart
• True altitude is higher than indicated altitude

● Cold Air
• Pressure levels contract and become closer together
• True altitude is lower than indicated altitude

📚 ATPL Exam Tip

The key rule when flying from warm air into colder air is:

“From hot to cold, look out below.”

The altimeter may indicate the same altitude while the aircraft is actually closer to the terrain.

🔑 Remember

Warm air → True altitude HIGHER than indicated
Cold air → True altitude LOWER than indicated

✈️ AIR DATA COMPUTER (ADC)📌 The Air Data Computer processes pressure and temperature inputs to provide essential flight ...
22/09/2026

✈️ AIR DATA COMPUTER (ADC)

📌 The Air Data Computer processes pressure and temperature inputs to provide essential flight data to aircraft systems and displays.

● Main Inputs
• Static pressure
• Dynamic pressure (pitot − static)
• Total Air Temperature (TAT)
• Angle of attack

● Main Outputs
• Altitude & altitude rate
• Indicated Airspeed (IAS)
• True Airspeed (TAS)
• Mach number
• Air density
• Outside Air Temperature (OAT)
• Corrected angle of attack

📚 ATPL Exam Tip

The ADC does more than simply display pitot-static information: it processes and corrects the raw inputs before supplying calculated air data to other aircraft systems.

🔑 Remember

Pressure + Temperature → ADC → Calculated Air Data

🎯 New Feature: Real Exam FocusFocus on what matters. Our new Real Exam Focus filters let you decide exactly which real e...
21/09/2026

🎯 New Feature: Real Exam Focus

Focus on what matters. Our new Real Exam Focus filters let you decide exactly which real exam questions appear in your tests:

✅ Only Real Exam Questions — practise nothing but questions reported from official exams
🕒 Last Real Exam Questions — concentrate on the most recently reported ones
🆕 Except Last Real Exam Questions — skip the last 100/200/… reported questions (optionally by country) and cover everything else
🚫 Exclude Real Exam Questions — build tests without any real exam questions

Find them under "Show More Filters" when creating a new test.

Smarter filtering, sharper preparation. 📱

https://atplquestions.com/blog/except-last-real-exam-filter

✈️ AERODROME SYMBOLS📌 Aeronautical charts use standardized symbols to quickly identify the type and status of an aerodro...
19/09/2026

✈️ AERODROME SYMBOLS

📌 Aeronautical charts use standardized symbols to quickly identify the type and status of an aerodrome.

📚 ATPL Exam Tip

The symbol can tell you whether an aerodrome is civil, military, joint-use, water-based, closed, or a heliport. On some charts, the actual runway pattern may replace the standard aerodrome symbol.

✅ New Feature: My Real Exam MarkingsDid you see a question on your official exam? Now you can find every question you ma...
18/09/2026

✅ New Feature: My Real Exam Markings

Did you see a question on your official exam? Now you can find every question you marked as "seen on the real exam" in one place.

📍 Filter by subject and date range
🌍 See the authority and exam date for each marking
✔️ Track which markings have been approved
🔎 Quickly review the exact questions that appeared on your exam

Find it under your profile menu → My Real Exam Markings.

Your feedback helps every pilot prepare better — keep marking! 📱

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📝 The ATPL Questions Blog is Published!Your new knowledge hub for every pilot is live. Whether you're just starting your...
18/09/2026

📝 The ATPL Questions Blog is Published!

Your new knowledge hub for every pilot is live. Whether you're just starting your training or preparing for your final ATPL exams, our blog is here to guide you every step of the way.

What you'll find:

📖 Exam Guides — subject-by-subject breakdowns and what to expect
🛡️ Authority Guides — EASA, UK CAA, SACAA and more explained
💡 Study Tips — proven strategies to study smarter, not harder
🏷️ Product News & Tips — get the most out of ATPL Questions
✈️ Aviation Theory — key concepts made clear
🎓 Flight School Corner — insights for students and instructors

New articles added regularly. Read now and take your preparation to the next level.

👉 atplquestions.com/blog

✈️ PITOT-STATIC SYSTEM📌 The pitot-static system supplies pressure information to the aircraft’s air data instruments and...
17/09/2026

✈️ PITOT-STATIC SYSTEM

📌 The pitot-static system supplies pressure information to the aircraft’s air data instruments and computers.

● Pitot Pressure
• Captain’s pitot → Air Data Computer No.1
• First Officer’s pitot → Air Data Computer No.2
• Standby pitot → Standby Airspeed Indicator

● Static Pressure
• Separate static lines are provided for the Captain, First Officer and standby system
• Static pressure is used for altitude and airspeed calculations
• The standby static system supplies the standby instruments

🔄 Changeover Valves
• Allow an Air Data Computer to use an alternative static source if required
• Provide redundancy following a static source/system failure

📚 ATPL Exam Tips
• Airspeed requires both pitot and static pressure
• Altitude requires static pressure only
• Independent pitot/static sources improve system redundancy
• A blocked pitot or static source can cause erroneous instrument indications

🔑 Remember

Pitot + Static → Airspeed
Static → Altitude

🚀 New Features Unlocked!3 updates to make your study experience smoother on ATPL Questions:1️⃣ Creation FiltersSee exact...
16/09/2026

🚀 New Features Unlocked!

3 updates to make your study experience smoother on ATPL Questions:

1️⃣ Creation Filters
See exactly how each saved test was created — wrongly answered questions, before making choice, or sequentially — right from the test menu.

2️⃣ Completed Tests Filter
Quickly find the tests you've already completed with a single filter. No more scrolling through your full test list.

3️⃣ Show Questions in the Explanation Tab
Reading an explanation? Tap "Show Question" to view the full question and answer options without leaving the tab.

All features are live now — open the app and try them out! 📱

👉 atplquestions.com

✈️ ICE RIDGES & PITOT PROBE ERRORS📌 Ice forming on the aircraft skin ahead of a pitot probe can disturb the local airflo...
15/09/2026

✈️ ICE RIDGES & PITOT PROBE ERRORS

📌 Ice forming on the aircraft skin ahead of a pitot probe can disturb the local airflow. Even when the probe itself is clear of ice, this disturbed airflow may affect the pressure sensed by the probe and cause airspeed indication errors.

● Key ATPL Concepts

🧊 Ice Ridges
• Ice may accumulate on the fuselage ahead of the pitot probes
• The resulting surface irregularities disturb the airflow

🌬️ Disturbed Airflow
• Ice ridges can create turbulence and alter the local airflow direction
• The pitot probe may therefore receive airflow different from the undisturbed free stream

📡 Pitot Probe
• Measures total pressure for the airspeed indication system
• Its accuracy depends on being exposed to the intended airflow conditions

⚠️ Important
• The pitot probe does not have to be blocked by ice for an error to occur
• Ice upstream of the probe can be enough to produce inaccurate indications

📚 ATPL Exam Tips
• Pitot heating protects the probe itself from icing
• Ice on surrounding aircraft surfaces can still disturb airflow
• Disturbed airflow near the probe can cause airspeed indication errors

🔑 Remember

Ice Ridge → Disturbed Airflow → Pitot Pressure Error → Airspeed Error

💡 Exam Hint: If the pitot probe is clear but ice has formed immediately ahead of it, consider airflow disturbance around the probe, not only pitot blockage.

Save & share for ATPL revision ✓

📚 WK37 / 2026 — Weekly Question UpdateThis week's update is live! We've added 47 new questions to the ATPL Questions dat...
14/09/2026

📚 WK37 / 2026 — Weekly Question Update

This week's update is live! We've added 47 new questions to the ATPL Questions database across 11 subjects.

✈️ 010 Air Law: 3 new questions
✈️ 021 AGK: 6 new questions
✈️ 022 INSTR: 5 new questions
✈️ 031 MASS: 2 new questions
✈️ 032 PERF: 6 new questions
✈️ 033 FPM: 4 new questions
✈️ 050 METEO: 5 new questions
✈️ 061 GNAV: 3 new questions
✈️ 070 OPS: 7 new questions
✈️ 081 POF: 2 new questions
✈️ 090 COMMS: 4 new questions

📊 Total Added: 47 questions

Keep your preparation up to date — new questions are waiting for you.

👉 atplquestions.com

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