Question 1

The diameter of most tornadoes is between ______.

Accepted Answer

A)  1 and 2 miles
B)  2 and 5 miles
C)  50 and 100 ft
D)  300 and 2000 ft
E)  1000 and 3000 ftF) A) and B)
G) B) and E)

Question 2

The Enhanced Fujita Scale classifies tornadoes according to the ____ of the tornado.

Accepted Answer

A)  wind direction
B)  rotational wind speed
C)  vertical wind speed
D)  diameter and height
E)  length of the path of damageF) A) and E)
G) A) and D)

Question 3

A(n) ____ atmosphere is essential for tornado development.

Accepted Answer

A)  absolutely stable
B)  conditionally stable
C)  conditionally unstable
D)  unconditionally stable
E)  unconditionally unstableF) None of the above
G) A) and D)

Question 4

Opening windows during a tornado decreases the pressure on the opposite wall and, therefore, decreases the chances that the building will collapse.

Accepted Answer

A) True 
 B)False

Question 5

The next advance in Doppler radar technology is the polarimetric radar that transmits ____.

Accepted Answer

A)  a horizontal radar pulse
B)  a vertical radar pulse
C)  both a horizontal and a vertical radar pulse
D)  light beams
E)  radar pulses specifically in the polar regionsF) B) and E)
G) All of the above

Question 6

Tornadoes have occurred in every state, including Alaska and Hawaii.

Accepted Answer

A) True 
 B)False

Question 7

A horizontal tube of spinning air, created by vertical wind shear, causes the air near the surface to rotate about a horizontal axis, and is called a mesocyclone.

Accepted Answer

A) True 
 B)False

Question 8

A typical tornado outbreak includes at least ____ tornadoes in an outbreak area.

Accepted Answer

A)  2
B)  4
C)  6
D)  8
E)  10F) A) and E)
G) C) and E)

Question 9

Discuss what the Doppler radar does and the general principle upon which it works.

Accepted Answer

A radar transmitter sends out microwave ...

Question 10

Gustnadoes form along a gust front where the cool downdraft of a thunderstorm forces warm, humid air upwards.

Accepted Answer

A) True 
 B)False

Question 11

How is a forward-flank downdraft produced?

Accepted Answer

As warm, humid air is drawn into the sup...

Question 12

The longest tornado damage path recorded anywhere on Earth extended 352 km (219 mi).

Accepted Answer

A) True 
 B)False

Question 13

If the updraft in a supercell is so strong that precipitation cannot fall through it, southwesterly winds aloft usually blow precipitation ____.

Accepted Answer

A)  northwestward
B)  southwestward
C)  northeastward
D)  southeastward
E)  straight westwardF) A) and E)
G) B) and D)

Question 14

The network of more than 150 Doppler radar units deployed at selected weather stations within the continental United States is referred to as ____.

Accepted Answer

A)  NEXRAD
B)  Doppler lidar
C)  National Weather Service
D)  NOAA
E)  the Enhanced Fujita ScaleF) C) and D)
G) A) and B)

Question 15

When a tornado is approaching from the southwest, its strongest winds are on its ____ side.

Accepted Answer

A)  northeast
B)  southeast
C)  northwest
D)  north
E)  westF) A) and B)
G) A) and C)

Question 16

A system called ____ uses a light beam to measure the change in frequency of falling precipitation, cloud particles, and dust.

Accepted Answer

A)  Doppler radar
B)  Doppler lidar
C)  the vortex chamber
D)  dual polarization radar
E)  NEXRADF) A) and E)
G) B) and E)

Question 17

The Central Plains region is susceptible to tornadoes because ____.

Accepted Answer

A)  cool, dry surface air is overlain by warmer, more humid air aloft
B)  warm, humid surface air is overlain by cooler, drier air aloft
C)  cool, wet surface air is overlain by warmer, drier air aloft
D)  warm, dry surface air is overlain by cooler, wetter air aloft
E)  warm, humid surface air is overlain by even warmer, and more humid air aloftF) All of the above
G) C) and E)

Question 18

Most often, tornadoes form with supercell thunderstorms in an environment with strong ____.

Accepted Answer

A)  radiational cooling
B)  precipitation
C)  vertical wind shear
D)  horizontal wind shear
E)  suction vorticesF) B) and E)
G) A) and B)

Question 19

When vertical wind shear causes air near the surface to rotate about a horizontal axis, ___ are created.

Accepted Answer

A)  mesocyclones
B)  vortex tubes
C)  suction vortices
D)  funnel clouds
E)  nonsupercell tornadoesF) All of the above
G) A) and E)

Question 20

The tornado alley of the United States ____.

Accepted Answer

A)  stretches from North Dakota to southern Texas
B)  stretches from the Rocky Mountains to the Mississippi River
C)  stretches from central Texas to Nebraska
D)  occurs over Mississippi and Alabama
E)  occurs over the Gulf Coast statesF) A) and C)
G) A) and B)

Exam 15: Tornadoes

Discuss what the Doppler radar does and the general principle upon which it works.

Correct AnswerverifiedA radar transmitter sends out microwave ...View AnswerShow Answer

When a tornado is approaching from the southwest, its strongest winds are on its ____ side.

Correct AnswerverifiedShow Answer

Gustnadoes form along a gust front where the cool downdraft of a thunderstorm forces warm, humid air upwards.

Correct AnswerverifiedShow Answer

Tornadoes have occurred in every state, including Alaska and Hawaii.

Correct AnswerverifiedShow Answer

A typical tornado outbreak includes at least ____ tornadoes in an outbreak area.

Correct AnswerverifiedShow Answer

The tornado alley of the United States ____.

Correct AnswerverifiedShow Answer

A horizontal tube of spinning air, created by vertical wind shear, causes the air near the surface to rotate about a horizontal axis, and is called a mesocyclone.

Correct AnswerverifiedShow Answer

How is a forward-flank downdraft produced?

Correct AnswerverifiedAs warm, humid air is drawn into the sup...View AnswerShow Answer

A(n) ____ atmosphere is essential for tornado development.

Correct AnswerverifiedShow Answer

The longest tornado damage path recorded anywhere on Earth extended 352 km (219 mi).

Correct AnswerverifiedShow Answer

The diameter of most tornadoes is between ______.

Correct AnswerverifiedShow Answer

Most often, tornadoes form with supercell thunderstorms in an environment with strong ____.

Correct AnswerverifiedShow Answer

The Central Plains region is susceptible to tornadoes because ____.

Correct AnswerverifiedShow Answer

A system called ____ uses a light beam to measure the change in frequency of falling precipitation, cloud particles, and dust.

Correct AnswerverifiedShow Answer

The next advance in Doppler radar technology is the polarimetric radar that transmits ____.

Correct AnswerverifiedShow Answer

The Enhanced Fujita Scale classifies tornadoes according to the ____ of the tornado.

Correct AnswerverifiedShow Answer

If the updraft in a supercell is so strong that precipitation cannot fall through it, southwesterly winds aloft usually blow precipitation ____.

Correct AnswerverifiedShow Answer

Opening windows during a tornado decreases the pressure on the opposite wall and, therefore, decreases the chances that the building will collapse.

Correct AnswerverifiedShow Answer

When vertical wind shear causes air near the surface to rotate about a horizontal axis, ___ are created.

Correct AnswerverifiedShow Answer

The network of more than 150 Doppler radar units deployed at selected weather stations within the continental United States is referred to as ____.

Correct AnswerverifiedShow Answer

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A radar transmitter sends out microwave ...
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As warm, humid air is drawn into the sup...
View Answer

Correct Answer
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