Unit 3 Exam Review

Front

______ decreases at 1”Hg per 1,000 foot increase in altitude.

Back

Barometric pressure

Front

Viscosity is a fluid’s resistance to ______.

Back

flow

Front

What are the standard temperature and pressure values for sea level?

Back

15 degrees C and 29.92” Hg.

Front

Knowing the pressure altitude is important to aircraft performance because it can be used as a tool to arrive at ______ .

Back

density altitude

Front

Pressure altitude corrects for the difference between _______ and standard pressure.

Back

barometric pressure

Front

Which factor would tend to increase the density altitude at a given airport? Options: decrease in ambient temperature, increase in barometric pressure, decrease in relative humidity, increase in ambient temperature

Back

increase in ambient temperature

Front

Pressure altitude is calculated from (29.92 - 28.92) × 1,000 + 3,500. What information do these numbers give?

Back

The barometric pressure is 28.92 "Hg and the elevation is 3,500 feet.

Front

Which combination of atmospheric conditions will reduce takeoff and climb performance? (3.B.1 and 3.A.2) Options: Low temperature, low relative humidity, and low density altitude; High temperature, low relative humidity, and low density altitude; Low temperature, high relative humidity, and high density altitude; High temperature, high relative humidity, and high density altitude

Back

High temperature, high relative humidity, and high density altitude

Front

Which statement is true about an object moving through a fluid?
Options:
Viscosity changes according to the size of the object.
The object moves faster if the fluid is more viscous.
Fluid friction increases as the object's velocity increases.
Less viscosity means more fluid friction.

Back

Fluid friction increases as the object's velocity increases.

Front

Which formula is used for calculating density altitude?

Back

PA + [120 (OAT – ISA) ]