Logical Reasoning and Rules Flashcards

Rule: Aircraft may fly through restricted area R-14 only if: (a) flying VFR AND (b) altitude is below 3,500 ft, OR if (c) holding a valid R-14 permit. Aircraft Kilo is IFR at 2,500 ft with no permit. Aircraft Lima is VFR at 3,000 ft with no permit. Aircraft Mike is IFR at 5,000 ft with a valid permit. Which aircraft may enter R-14?

Answer: Lima and Mike only

Lima is VFR at 3,000 ft (below 3,500 ft) — meets conditions (a) AND (b). Mike has a valid permit — meets condition (c). Kilo is IFR — fails condition (a); no permit — fails (c).

A conditional rule states: 'If an aircraft reports fuel emergency AND is within 50 NM of the destination AND the weather is above minimums, then the aircraft is given priority approach. If the weather is below minimums, the aircraft is diverted regardless of fuel state.' An aircraft reports fuel emergency 30 NM from destination. Weather is below minimums. The correct action is:

Answer: Divert the aircraft — the below-minimums weather condition triggers diversion regardless of fuel emergency or proximity

The rule explicitly states that below-minimum weather triggers diversion 'regardless of fuel state', making the weather condition a hard override of the priority approach rule.

Sequencing rule: 'Process clearances in the order received except when: (1) a MAYDAY overrides all other clearances, or (2) a PAN PAN overrides all non-emergency clearances, or (3) a safety-critical coordination overrides standard clearances.' Four pending items: (A) Standard clearance received first, (B) PAN PAN received second, (C) Safety-critical coordination received third, (D) MAYDAY received fourth. The correct processing order is:

Answer: D, B, C, A — MAYDAY first, then PAN PAN, then safety coordination, then standard clearance

MAYDAY is the highest override (1), then PAN PAN (2), then safety coordination (3), then standard in-order. This gives: D, B, C, A.

Rule: 'Speed restrictions must be maintained until 10 DME from the threshold, at which point the aircraft is cleared to accelerate to approach speed. Speed restrictions do not apply to emergency aircraft at any point.' An emergency aircraft is 6 DME from the threshold. Does the speed restriction apply?

Answer: No — emergency aircraft are exempt from speed restrictions at any point

The rule explicitly exempts emergency aircraft from speed restrictions 'at any point' — this exemption covers all situations regardless of distance from threshold.

A controller has the following decision rule: 'Transfer an aircraft to the next sector when: (1) it reaches the sector boundary, OR (2) it requests transfer, OR (3) the receiving sector requests early transfer.' Aircraft Omega is 5 NM from the boundary, has not requested transfer, but the receiving sector has called requesting early transfer. Should the aircraft be transferred?

Answer: Yes — condition (3) is satisfied and the OR rule means any single condition is sufficient

The rule uses OR logic — any single condition being true is sufficient to trigger transfer. Condition (3) is met, so the transfer should proceed.

Five rules apply to aircraft entering sector Bravo: Rule 1: Must be on IFR flight plan. Rule 2: Must have transponder operational. Rule 3: Must have been handed off from adjacent sector. Rule 4: Must be within the vertical limits of the sector. Rule 5: Must have confirmed two-way communication. Aircraft Sierra meets Rules 1, 2, 4, and 5 but has NOT been handed off from the adjacent sector (Rule 3). May it enter sector Bravo?

Answer: No — all five rules are AND conditions; failure of any one rule prevents entry

All five rules are listed as entry conditions — this is five-way AND logic. Failing even one condition (Rule 3) prevents entry.