10 Mins for a B757 Honeywell IRS in Temperate Lats.
But really, what a stupid exam question. Who cares if it's 9, 10 or 12 Mins? As long as it's not 45 Mins, when it's aligned its aligned - no one sits there with a stopwatch.
I see the JAA exam questions are no better thought out than the old CAA ones.
