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0 / 4 ptsQuestion 26UnansweredUnansweredIf the temperature was 25C at an airport with a station elevation of 1,500 feet,what would be the density altitude correction,i.e., how much additional heightwould need to be added to the pressure altitude to obtain the density altitude?Correct AnswerCorrect Answer
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1,200 feet1,080 feetIncorrect.The standard temperature at 1,500 feet is 12.This is becausethe standard temperature at mean sea level is 15C and standardtemperature decreases 2C for every 1,000 feet.Thus the standardtemperature would decrease a total of 3C between mean sea level and1,500 feet giving standard temperature of 12C (15-3=12) .Because ofthis, the actual temperature of 25C is 13C warmer than standard at thatelevation, i.e., 25 - 12 = 13.Finally, using the rule of thumb, the necessarycorrection for density altitude would be 13 x 120 = 1,560 feet.Thus, the DAwould be 1,560 feet greater than the PA.oooooo0 / 4 ptsQuestion 27UnansweredUnansweredIf the DA calculated using a either Chart style one or two yielded a density altitudeof 3,000 feet, what would be theapproximateDA if a dew point of 13C were
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included in the calculation?