For Question 371 select "B", "C" or "D" ("A" is selected only as an example)!
371. The presence of ice pellets at the surface is evidence that there:
A) None of the below. B) are thunderstorms in the area. C) has been cold frontal passage. D) is a temperature invesion with freezing rain at a higher altitude.
372. Which factor would tend to increase the density altitude at a given airport?
A) An increase in barometric pressure. B) An increase in ambient temperature. C) A decrease in relative humidity. D) None of the above.
373. What are the standard temperature and pressure values for sea level?
A) 15C and 29.92 inches Hg. B) 59C and 1013.2 millibars. C) 59F and 29.92 millibars. D) None of the above.
374. If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication?
A) Altimeter will indicate .15 inches Hg higher. B) Altimeter will indicate 150 feet higher. C) Altimeter will indicate 150 lower. D) None of the above.
375. Under which condition will pressure altitude be equal to true altitude?
A) When the atmospheric pressure is 29.92 inches Hg. B) When standard atmospheric conditions exist. C) When indicated altitude is equal to the pressure altitude. D) None of the above.
376. Under what condition is pressure altitude and density altitude the same value?
A) At sea level, when the temperature is 0 degress F. B) When the altimeter has no installation error. C) At standard temperature. D) None of the above.
377. If a flight is made from an area of low pressure into an area of high pressure without the altimeter setting being adjusted, the alitmeter will indicate:
A) the actual altitude above sea leve. B) higher than the actual altitude above sea level. C) lower than the actual altitude above sea level. D) None of the above.
378. Under what condition will true altitude be lower than indicated altitude?
A) In colder than standard air temperature. B) In warmer than standard air temperature. C) When density altitude is higher than indicate altitude. D) None of the above.
379. What is the approximate base of the cumulus clouds if the surface air temperature at 1,000 feet MSL is 70 degrees F and the dewpoint is 48 degrees F?
A) 4,000 feet MSL. B) 5,000 feet MSL. C) 6,000 feet MSL. D) None of the above.
380. What are characteristics of a moist, unstable air mass?
A) Cumuliform clouds and showery precipitation. B) Poor visibility and smooth air. C) Stratiform clouds and showery precipitation. D) None of the above.