1W0510 CDC Practice Test B Set Book 3

100 Questions | By Truste307 | Last updated: Mar 21, 2022 | Total Attempts: 408

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1W0510 CDC Practice Test B Set Book 3

Questions and Answers

1.

Under Wien’s Law, on what is the wavelength of the maximum irradiance of a black body dependent?
- A.
  
  Temperature
- B.
  
  Wavelength
- C.
  
  Color
- D.
  
  Distance
2.

Explain Planck’s law.
- A.
  
  The amount of radiation emitted by a black body at a given wavelength is proportional to its temperature
- B.
  
  The amount of radiation emitted by a black body at a given wavelength is inversely proportional to its temperature
- C.
  
  The amount of radiation emitted by a black body at a given wavelength is proportional to its distance
- D.
  
  The amount of radiation emitted by a black body at a given wavelength is proportional to its size
3.

What METSAT function allows systems to be put in motion?
- A.
  
  Animated Looping
- B.
  
  Circular Motion
- C.
  
  Anthresis
- D.
  
  Satellite Visibility Function
4.

What is the inclination angle of the polar orbiting satellites?
- A.
  
  The inclination angle (88.7°)
- B.
  
  The inclination angle (98.7°)
- C.
  
  The inclination angle (78.7°)
- D.
  
  The inclination angle (108.7°)
5.

Of what areas do polar orbiting satellites provide coverage?
- A.
  
  Approximately 472 nautical miles (nm), allow for global coverage every 4 hours
- B.
  
  Approximately 472 nautical miles (nm), allow for global coverage every 8 hours
- C.
  
  Approximately 472 nautical miles (nm), allow for global coverage every 12 hours
- D.
  
  Approximately 472 nautical miles (nm), allow for global coverage every 6 hours
6.

Geosynchronous satellites orbit the earth at the same angular velocity as what?
- A.
  
  The Moon
- B.
  
  The Earth
- C.
  
  Other Satellites
- D.
  
  The Speed of Sound
7.

Which satellite allows you to loop imagery to follow fronts, lows, severe weather, and many other cloud and non-cloud features?
- A.
  
  Polar Satewllites
- B.
  
  Visible Satellites
- C.
  
  Orbital
- D.
  
  Geostationary Satellites
8.

What frequencies have two channels to include both horizontal and vertical polarizations?
- A.
  
  37 and 85.5GHz
- B.
  
  19.3 and 37GHz
- C.
  
  19.3 and 85.5GHz
- D.
  
  19.3, 37, and 85.5GHz
9.

How long does it take the SSM/I sensor to complete one complete revolution of the globe?
- A.
  
  98
- B.
  
  102
- C.
  
  64
- D.
  
  96
10.

What is the scan width ( in degrees)covered by SSM/I at the earth’s surface?
- A.
  
  45
- B.
  
  90
- C.
  
  60
- D.
  
  35
11.

How accurate (by kelvins) are brightness temperatures for SDRs?
- A.
  
  Within 1
- B.
  
  Within 3
- C.
  
  Within 7
- D.
  
  Within 5
12.

Why is the exact location of the anticyclone’s circulation center difficult to place?
- A.
  
  Because anticyclones are fast moving features
- B.
  
  Because anticyclones are slow moving features
- C.
  
  Because anticyclones are nearly invisible features
- D.
  
  Because anticyclones are large, broad features
13.

What should you look for on infrared imagery to indicate that precipitation is increasing?
- A.
  
  Rapidly shrinking and heating cloud tops are an indication precipitation will increase.
- B.
  
  Rapidly expanding and heating cloud tops are an indication precipitation will increase.
- C.
  
  Rapidly shrinking and cooling cloud tops are an indication precipitation will increase.
- D.
  
  Rapidly expanding and cooling cloud tops are an indication precipitation will increase.
14.

What type of cloud pattern is the first indicator a short-wave trough is interacting with a frontal boundary?
- A.
  
  A slight “V” shape developing on the cold-air side of the cloud pattern.
- B.
  
  A slight “S” shape developing on the cold-air side of the cloud pattern.
- C.
  
  A slight “L” shape developing on the cold-air side of the cloud pattern.
- D.
  
  A slight “D” shape developing on the cold-air side of the cloud pattern.
15.

A theoretically perfect absorber and emitter of radiation is
- A.
  
  A gray body.
- B.
  
  A black body.
- C.
  
  A white body.
- D.
  
  An electromagnetic body.
16.

The ratio of the total amount of radiation reflected from an object to the total amount of incident radiation is called
- A.
  
  Emissivity.
- B.
  
  Scattering.
- C.
  
  Reflectivity
- D.
  
  Absorptivity.
17.

Which law says that the amount of radiation emitted by a black body at a given wavelength is proportional to its temperature?
- A.
  
  Stefan’s law.
- B.
  
  Kirchoff’s law.
- C.
  
  Planck’s law.
- D.
  
  Wien displacement law.
18.

Meteorological satellite (METSAT) imagery is more advantageous than synoptic reports because it
- A.
  
  Is less contaminated by raw data.
- B.
  
  Is a forecast that occurs more frequently.
- C.
  
  Is an observation that occurs more frequently.
- D.
  
  Shows areas of high temperature and moisture relationships.
19.

The geosynchronous satellite stays in position because of a combination of
- A.
  
  Angular velocity and centripetal force.
- B.
  
  Angular velocity and centrifugal force.
- C.
  
  Centripetal force and gravity.
- D.
  
  Centrifugal force and gravity.
20.

Which is not a geosynchronous satellite?
- A.
  
  Meteorological Satellite (METEOSAT).
- B.
  
  Defense Meteorological Satellite Program (DMSP) satellite.
- C.
  
  Geostationary Meteorological Satellite (GMS).
- D.
  
  Geosynchronous Operational Environmental Satellite (GOES).
21.

Which is a factor that affects the amount of brightness measured by visible meteorological satellite (METSAT) imagery?
- A.
  
  Types of radiative transfer taking place.
- B.
  
  Type of passive remote sensing device on the satellite.
- C.
  
  Angle of the sun.
- D.
  
  Type of multispectral color-composite imagery involved.
22.

Most meteorological satellite (METSAT) sensors are designed so that the visual imagery is a combination of
- A.
  
  Near and far infrared wave lengths.
- B.
  
  Visual and near infrared wave lengths.
- C.
  
  Water vapor and far infrared wave lengths.
- D.
  
  Visual and far infrared wave lengths.
23.

With water vapor (WV) imagery, why do middle and high-level moisture affect the sensor much more than low-level moisture?
- A.
  
  Absorption is highest between 610 to 240mb.
- B.
  
  Absorption is lowest between 610 to 240 millibars (mb).
- C.
  
  Reflectivity is lowest between 610 to 240mb.
- D.
  
  Reflectivity is highest between 610 to 240mb.
24.

Which is not a use for water vapor imagery?
- A.
  
  Identifying potential thunderstorm areas.
- B.
  
  Determining the polar front (PFJ) and subtropical jets (STJ).
- C.
  
  Identifying circulation centers, troughs, ridges, and wind maximums.
- D.
  
  Determining the thickness of mid and upper-level clouds.
25.

Which far infrared (FIR) enhancement curve is a good all-purpose curve we most commonly use for identifying convective activity?
- A.
  
  MB curve.
- B.
  
  JG curve.
- C.
  
  CC curve.
- D.
  
  ZA curve.