Refer to Figure 8 on page 10.
What is the effect of a temperature increase from 35 to 50 °F on the density altitude if the pressure altitude remains at 3,000 feet MSL?
Explanation
Correct answer: B. 1000 foot increase. See the chart. Begin at 35 degrees and go up to the 3000 MSL position. Then follow the slope of the 3000 feet up to where it meets the 50 degree point, which, in this situation, is where the standard temperature meets as well. Then follow along left to the edge of the chart. You will see that the Density Altitude is 3000 feet. By using the 50 degree point, this has increased from the point where the 35 degree point meets the 3000 foot MSL point. When you follow over to the left edge, it now meets at the 2000 foot level. Therefore the temperature has increased the Density Altitude to 3000 feet.
