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Sample SACAA ATC Licence Practice Questions
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1Under SA-CARs Part 65, what is the minimum passing percentage required on all theoretical knowledge examinations for an Air Traffic Controller licence?
A.75%
B.70%
C.80%
D.85%
Explanation: SA-CARs Part 65 and general SACAA personnel licensing rules mandate a minimum pass mark of 75% for all theoretical examinations.
2What is the standard minimum radar separation applied between two IFR aircraft operating at the same altitude in an en-route terminal environment equipped with calibrated monopulse SSR in South Africa?
A.5 nautical miles
B.3 nautical miles
C.10 nautical miles
D.2 nautical miles
Explanation: Standard en-route radar separation in South African controlled airspace is 5 nautical miles, unless reduced terminal radar capabilities (3 NM) are specifically authorized.
3Aircraft A is climbing through FL180 at 2,000 ft/min. Aircraft B is descending through FL220 at 1,000 ft/min towards the same position. What is the time remaining until vertical separation (1,000 ft) is lost, assuming FL200 as the collision level?
A.40 seconds
B.60 seconds
C.30 seconds
D.80 seconds
Explanation: Combined vertical closure rate = 2,000 + 1,000 = 3,000 ft/min. The initial vertical gap is FL220 - FL180 = 4,000 ft. The 1,000 ft separation minimum is breached once the gap closes to 1,000 ft, a reduction of 3,000 ft. Time = 3,000 ft / 3,000 ft/min = 1 minute = 60 seconds.
4According to ICAO Annex 11 and SA-CATS 65, what minimum time separation must be applied to a Light aircraft taking off on the same runway behind a Heavy aircraft?
A.2 minutes
B.3 minutes
C.1 minute
D.4 minutes
Explanation: A wake turbulence time separation of 3 minutes is required for a Light aircraft taking off behind a Heavy aircraft from the same runway (or parallel runway separated by less than 760 m).
5What is the standard ICAO transponder code assigned for an aircraft experiencing complete radio communications failure (RCF)?
A.7600
B.7500
C.7700
D.2000
Explanation: Mode A code 7600 indicates an aircraft communications failure (Radio Communications Failure - RCF).
6An aircraft reports at FL310 with an altimeter setting of 1013.2 hPa. If the local QNH at the nearest reporting station is 998 hPa, what is the aircraft's true pressure altitude relative to mean sea level (assuming 30 ft per hPa)?
A.30,550 ft
B.31,450 ft
C.31,000 ft
D.30,100 ft
Explanation: Pressure difference = 1013.2 - 998 = 15.2 hPa. Lower pressure means true altitude is lower than flight level by 15.2 * 30 ft = 456 ft. 31,000 - 456 = 30,544 ft (approximately 30,550 ft).
7Under SA-CARs Part 65, how many hours of valid Air Traffic Service experience within the preceding 90 days are required for an Air Traffic Controller to maintain recency on a rated unit position?
A.A specified minimum number of operational hours as prescribed in the unit competency scheme (typically 10–15 hours)
B.50 hours
C.100 hours
D.5 hours
Explanation: Part 65 recency rules require controllers to log operational hours on the specific sector/position in accordance with the SACAA-approved Unit Competency Scheme (UCS).
8What is the primary airspace classification of South African oceanic airspace within the Johannesburg Oceanic FIR above FL245?
A.Class A
B.Class G
C.Class C
D.Class D
Explanation: All airspace in South Africa at and above FL195 / FL245 upper control areas is designated Class A airspace, where all flights are IFR and subject to ATC clearance.
9Two aircraft are on converging tracks at the same altitude. Aircraft A is flying on a track of 090° and Aircraft B is on a track of 360°. Which aircraft has the right-of-way?
A.Aircraft A (appearing on the right side of Aircraft B)
B.Aircraft B
C.The faster aircraft
D.The aircraft at the higher airspeed
Explanation: Under ICAO Annex 2 rules of the air, when two aircraft are converging at approximately the same level, the aircraft that has the other on its right shall give way. Aircraft A is to the right of Aircraft B (090° vs 360°), so Aircraft A has right-of-way and Aircraft B must give way.
10What is the standard vertical separation minimum (VSM) applied between IFR aircraft operating between FL290 and FL410 in Reduced Vertical Separation Minima (RVSM) airspace?
A.1,000 feet
B.2,000 feet
C.500 feet
D.1,500 feet
Explanation: RVSM allows vertical separation to be reduced from 2,000 ft to 1,000 ft between FL290 and FL410 inclusive for RVSM-approved aircraft.
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