Airport Engineering
In Instrumental landing system, the middle markers are located

Along the extended centre line of runway end
At the runway threshold
About 7 km. ahead of the runway threshold
About 1 km. ahead of the runway threshold

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Airport Engineering
Assertion A : Airport capacity during IFR conditions is usually less than that during VFR conditions.Reason R: During clear weather condition (VFR), the aircrafts on final approach to runway can be spaced closer during poor visibility conditions.Select your answer based on the coding system given below:

Both A and R is true but R is not the correct explanation of A
Both A and R is true and R is the correct explanation of A
A is false but R is true
A is true but R is false

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