Question

1) An airport has a capacity of 30 aircrafts arriving per hour. Assume the standard deviation of the mean service time for arriving aircraft is 20 seconds. If the mean delay is required to maintain less than 1 minute, what will be the maximum arrival rate (aircrafts per hour)?

A. 15
B. 14
C. 13
D. 12

2) For an airport runway, the standard separate distance is 5 nautical miles. The leading aircraft speed is 150 knot and the trailing aircraft speed is 120 knot. What’s the time (in minutes) between the two successive landing aircrafts if the distance from entry gate to the runway is 6 nautical miles?

A. 3.1
B. 4.1
C. 5.1
D. 2.1

3) A transit agency has a total operating expense=$4.8 million. Total revenue is $1.4 million in fares, carried 1.7 million riders. What’s the subsidy per transit trip?

A. $5 per trip
B. $4 per trip
C. $3 per trip
D. $2 per trip

Answer 1

Answers Cappucrter of 30 how 0 Given An airport has a aire raft arriving per The mean service time for arriving aircraft in 20 The traffic denuity time = 30 aircraft hour = 2osee less than a min manimum arrival detu = 13 13/1 option to his corrent Yevenue The total operations Expense = $4.8 million $1.4 million total 4,8-14 $3.4 million råders = 1.7 million suberty subsidy peretrans of trop= 3.4 = $2 pertrop 1.7 Aug D $2 per trip

The standard separate di Ance nautical miles entry gate to the runway Distance from the is & nautical milles Total distance required between aircrafts = s nautical miles The leading aircraft speed it 150 knots tradling aircraft speed is 120k kriots - Те aircraf to cover Time required for leading this distance 5/150hv = 2 minutes 7 ruime between two succesive laiting aircraft = 2 minutes