Question 1

Drylines are capable of producing thunderstorms because:

Accepted Answer

A)  the dry air mass forces the moist air mass to rise.
B)  the moist air mass lifts the dry air mass.
C)  there is an abrupt change in temperature across the dryline.
D)  the dry air mass is unstable and rising.

Question 2

Multiple-vortex tornadoes help explain:

Accepted Answer

A)  why one building is destroyed and the one next to it is untouched.
B)  why tornadoes are so short lived.
C)  why some tornadoes never touch the ground.
D)  what EF rank a tornado should have.

Question 3

Lightning always occurs between a cloud and the ground.

Accepted Answer

A) True 
 B)False

Question 4

The primary force causing the fast winds of a tornado is electrical.

Accepted Answer

A) True 
 B)False

Question 5

Why is very humid air near the surface a necessary ingredient for severe thunderstorms?

Accepted Answer

A)  High humidity strengthens the cold front.
B)  High humidity makes the air more dense.
C)  High humidity makes the rising air cool more rapidly.
D)  Lapse rates are larger in humid air.
E)  More latent heat is then available as energy for the storm.

Question 6

A developing tornado is called a funnel cloud until it makes contact with the surface.

Accepted Answer

A) True 
 B)False

Question 7

Some of the most dangerous weather is produced by a type of thunderstorm called a(n) :

Accepted Answer

A)  gust front.
B)  updraft.
C)  roll cloud.
D)  supercell.

Question 8

An overshooting top means that:

Accepted Answer

A)  a thunderstorm will definitely produce a tornado
B)  the thunderstorm has very strong updrafts causing the cloud to grow into the stratosphere
C)  the thunderstorm is dissipating.
D)  lightning strikes will be especially intense.

Question 9

The Enhanced Fujita scale is based on:

Accepted Answer

A)  the level of damage caused by a tornado.
B)  the measured wind speeds inside a tornado.
C)  the pressure gradient across the diameter of a tornado.
D)  the frequency of lightning strikes concurrent with the tornado.

Question 10

A mesocyclone often precedes tornado development.

Accepted Answer

A) True 
 B)False

Question 11

The term "cyclone" simply refers to the circulation around any low-pressure center,no matter how large or intense it is.

Accepted Answer

A) True 
 B)False

Question 12

Refer to the diagram of a thunderstorm above to answer the following questions.
-Where would you expect to find precipitation occurring in this thunderstorm?

Accepted Answer

A)  Letter A
B)  Letter B
C)  Letter D
D)  Letter E

Question 13

The greatest number of deaths associated with thunderstorms result from:

Accepted Answer

A)  flash flooding.
B)  lightning.
C)  hail.
D)  tornadoes.

Question 14

What is entrainment?

Accepted Answer

A)  the process of cool,dry air being pulled into a thunderstorm by the downdraft
B)  warm,moist air fed into a thunderstorm by the updraft
C)  rotation from the parent cloud transferring into a tornado
D)  a line of thunderstorms,one feeding into the next

Question 15

Extreme evaporative cooling can sometimes produce explosions of straight-line winds called:

Accepted Answer

A)  gust fronts.
B)  downbursts.
C)  tornadoes.
D)  air bombs.

Question 16

Why are thunderstorms most likely to occur in the afternoon and early evening?

Accepted Answer

A)  Atmosphere is most unstable at that time.
B)  Upper-level winds are too fast at night and in morning.
C)  Water-vapor contents are too low at night.
D)  It takes all day for them to mature.
E)  Lower atmosphere is too unstable in the morning.

Question 17

What makes the narrow,rotating air column or vortex of a tornado visible?

Accepted Answer

Either the condensation of wat...

Question 18

Updrafts dominance relate to the ________ in the development of a thunderstorm.

Accepted Answer

A)  cumulus stage
B)  dissipating stage
C)  mature stage

Question 19

The feature identified by Letter F is most likely:

Accepted Answer

A)  the beginning of a new thunderstorm cell
B)  the sign of an intense downdraft
C)  in the mesosphere
D)  in the stratosphere

Question 20

What does the term mesocyclone refer to in reference to a tornado?

Accepted Answer

A)  the rotation of the updraft in the parent thunderstorm
B)  a high-altitude tornado
C)  a false-alarm tornado warning
D)  a very large tornado

Exam 10: Thunderstorms and Tornadoes

What makes the narrow,rotating air column or vortex of a tornado visible?

Correct AnswerverifiedEither the condensation of wat...View AnswerShow Answer

The term "cyclone" simply refers to the circulation around any low-pressure center,no matter how large or intense it is.

Correct AnswerverifiedShow Answer

Extreme evaporative cooling can sometimes produce explosions of straight-line winds called:

Correct AnswerverifiedShow Answer

An overshooting top means that:

Correct AnswerverifiedShow Answer

A developing tornado is called a funnel cloud until it makes contact with the surface.

Correct AnswerverifiedShow Answer

What does the term mesocyclone refer to in reference to a tornado?

Correct AnswerverifiedShow Answer

Why is very humid air near the surface a necessary ingredient for severe thunderstorms?

Correct AnswerverifiedShow Answer

Why are thunderstorms most likely to occur in the afternoon and early evening?

Correct AnswerverifiedShow Answer

The primary force causing the fast winds of a tornado is electrical.

Correct AnswerverifiedShow Answer

The greatest number of deaths associated with thunderstorms result from:

Correct AnswerverifiedShow Answer

Some of the most dangerous weather is produced by a type of thunderstorm called a(n) :

Correct AnswerverifiedShow Answer

Refer to the diagram of a thunderstorm above to answer the following questions. -Where would you expect to find precipitation occurring in this thunderstorm?

Correct AnswerverifiedShow Answer

What is entrainment?

Correct AnswerverifiedShow Answer

A mesocyclone often precedes tornado development.

Correct AnswerverifiedShow Answer

Lightning always occurs between a cloud and the ground.

Correct AnswerverifiedShow Answer

Multiple-vortex tornadoes help explain:

Correct AnswerverifiedShow Answer

The Enhanced Fujita scale is based on:

Correct AnswerverifiedShow Answer

Drylines are capable of producing thunderstorms because:

Correct AnswerverifiedShow Answer

The feature identified by Letter F is most likely:

Correct AnswerverifiedShow Answer

Updrafts dominance relate to the ________ in the development of a thunderstorm.

Correct AnswerverifiedShow Answer

Correct Answer
verified
Either the condensation of wat...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified