Lesson 25

Which effect will an airplane experience when taking off with a tailwind? A. A longer take off roll is required. B. A shorter take off roll is required. C. A larger initial rate of climb occurs. D. It will drift off the side of the runway.

A. A longer take off roll is required. (LP 25, p. 8)

Which effect occurs to airplanes on departure during a high density altitude condition? A. A slower rate of climb. B. A shorter takeoff roll is required. C. A higher rate of climb. D. An increase in thrust.

A. A slower rate of climb. (LP 25, p. 33)

Which condition is responsible for the most weather-related aviation accidents? A. Adverse wind B. Instrument (IFR) weather C. Turbulence D. Thunderstorms

A. Adverse wind (LP 25, p. 4)

Which airplane would be most at risk from a 25-knot crosswind on landing? A. General aviation, single propeller B. Corporate business jet C. Commercial jetliner D. Military cargo transport

A. General aviation, single propeller (LP 25, p. 10)

Which stage of a thunderstorm is characterized by updrafts exceeding 3,000 feet per minute? A. Towering cumulus B. Mature C. Virga D. Dissipating

A. Towering cumulus (LP 25, p. 47)

Ice becomes perceptible. Rate of accumulation is slightly greater than sublimation. Deicing/anti-icing equipment is NOT utilized unless encountered for an extended period of time (over 1 hour). What type of ice is being described? A. Trace B. Light C. Moderate D. Mixed

A. Trace (LP 25, p. 39)

Water vapor, lift, and unstable air are necessary for the formation of ____. A. a thunderstorm cell B. wind shear C. icing D. hail

A. a thunderstorm cell (LP 25, p. 46)

The dissipating stage of a thunderstorm begins when ____ are predominant. A. downdrafts B. updrafts C. hail stones D. icing

A. downdrafts (AC 00-6; LP 25, p. 47)

IFR weather is primarily a hazard ____. A. during takeoff and landing B. en route C. while in a holding pattern D. while changing altitudes

A. during takeoff and landing (LP 25, p. 13)

"Any wind more than 90 degrees to the longitudinal axis of the runway" defines a ____. A. tailwind B. crosswind C. variable wind D. sudden wind shift

A. tailwind (AMS Glossary of Meteorology; LP 25, p. 8)

Airplane performance gradually degrades as the wind ____. A. turns perpendicular to the runway B. decreases suddenly C. passes over a mountain range D. is trapped in a valley

A. turns perpendicular to the runway (LP 25, p. 5)

Low-level wind shear is a change in windspeed of ____ knots or more within ____ feet AGL. A. 25; 1,000 B. 10; 2,000 C. 25; 2,000 D. 10; 1,000

B. 10; 2,000 (LP 25, p. 54)

Which of the following is NOT true regarding fog? A. Fog reduces horizontal visibility to less than5/8 SM B. Fog forms slowly, allowing pilots to avoid this hazard C. Fog forms when the temperature and dewpoint spread is at or near zero D. Fog is a cloud with it's base at the earth's surface.

B. Fog forms slowly, allowing pilots to avoid this hazard (FMH1, p. A-4; LP 25, p. 15)

Which of the following is NOT true regarding fog? A. Fog reduces horizontal visibility to less than 5/8 SM B. Fog forms slowly, allowing pilots to avoid this hazard C. Fog forms when the temperature and dewpoint spread is at or near zero D. Fog is a cloud with it's base at the earth's surface.

B. Fog forms slowly, allowing pilots to avoid this hazard (LP 25, p. 15)

What type of turbulence is caused by any obstruction to the wind, such as buildings or mountains? A. Physical B. Mechanical C. Convective D. Clear air

B. Mechanical (LP 25, p. 23)

What can produce almost every weather hazard? A. Hurricane B. Thunderstorm C. Tornado D. Turbulence

B. Thunderstorm (AMS Glossary of Meteorology; LP 25, p. 45)

What can produce almost every weather hazard? A. Hurricane B. Thunderstorm C. Tornado D. Turbulence

B. Thunderstorm (LP 25, p. 45)

Turbulence that causes large, abrupt changes in altitude and/or attitude describes ____ turbulence. A. moderate B. severe C. intense D. extreme

B. severe (AC 00-45; LP 25, p. 29)

Turbulence that causes large, abrupt changes in altitude and/or attitude describes ____ turbulence. A. moderate B. severe C. light D. trace

B. severe (LP 25, p. 29)

When de-icing or anti-icing equipment fails to reduce or control the icing hazard, the icing is categorized as ____. A. extreme B. severe C. moderate D. heavy

B. severe (LP 25, p. 39)

Severe damage can occur if ____ is ingested into an engine. A. snow B. volcanic ash C. smoke D. mist

B. volcanic ash (LP25, p. 18)

Which of the following is a characteristic of a temperature inversion? A. High winds B. Decreased temperatures with increased altitude C. Increased temperatures with increased altitude D. Clear air turbulence

C. Increased temperatures with increased altitude (AC 00-6; LP 25, p. 27)

Which of the following is a characteristic of a temperature inversion? A. They cannot form along frontal zones B. Decreased temperatures with increased altitude C. Increased temperatures with increased altitude D. They never occur at or near the surface of the earth

C. Increased temperatures with increased altitude (LP 25, p. 27)

What type of turbulence causes occupants to be forced violently against seat belts or shoulder straps, unsecured objects to be tossed about, and makes food service and walking impossible? A. Light B. Moderate C. Severe D. Trace

C. Severe (LP, p. 29)

An area as large as 10 miles or more of strong damaging winds reaching speeds as high as 120 knots, on or near the ground, is a ____. A. wind shear B. microburst C. downburst D. funnel cloud

C. downburst (LP 25, p. 48)

Light turboprop aircraft are more susceptible to icing than commercial jet aircraft because they typically fly ____. A. during the daytime B. at higher speeds C. at higher altitudes D. at lower altitudes

D. at lower altitudes (LP 25, p. 41)

A sudden wind shift, even at low speeds, can be hazardous on takeoff and landing because it can ____. A. cause engine failure B. cause wing failure C. cause the plane to bounce on the runway D. quickly become a crosswind or tailwind

D. quickly become a crosswind or tailwind (LP 25, p. 9)