Question

For the design of runways, if the standard temperature at mean sea levels is ${14}^{\circ }C$, then the standard temperature at an altitude of 1000m will be :

• A. ${5.5}^{\circ }$C
• B. ${6.5}^{\circ }$C
• C. ${7.5}^{\circ }$C
• D. ${8.5}^{\circ }$C

Answer 1

The correct option is C ${7.5}^{\circ }$C

Standard temperature at a given elevation=(standard temperature at mean
sea level-0.0065$\times$ elevation)(in meters)
$=14-0.0065\times 1000$
$={7.5}^{\circ }C$