Atacama Large Millimeter Array (ALMA)

Description: This quiz is designed to test your understanding of the Atacama Large Millimeter Array (ALMA), a revolutionary astronomical observatory located in the Atacama Desert of Chile.
Number of Questions: 15
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Tags: astronomy telescopes radio astronomy alma
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What is the primary purpose of ALMA?

  1. To study the formation and evolution of stars and galaxies

  2. To detect and characterize exoplanets

  3. To observe the cosmic microwave background

  4. To search for extraterrestrial life


Correct Option: A
Explanation:

ALMA is primarily used to study the formation and evolution of stars and galaxies by observing the millimeter and submillimeter wavelength radiation emitted by cold gas and dust in these regions.

Where is ALMA located?

  1. Atacama Desert, Chile

  2. Hawaii, United States

  3. Atacama Desert, Argentina

  4. Atacama Desert, Peru


Correct Option: A
Explanation:

ALMA is located in the Atacama Desert of Chile, which is known for its extremely dry and clear skies, making it an ideal location for astronomical observations.

What type of telescope is ALMA?

  1. Radio telescope

  2. Optical telescope

  3. Infrared telescope

  4. X-ray telescope


Correct Option: A
Explanation:

ALMA is a radio telescope, which means it detects and analyzes radio waves emitted by celestial objects.

How many antennas does ALMA have?

  1. 66

  2. 12

  3. 50

  4. 100


Correct Option: A
Explanation:

ALMA consists of an array of 66 high-precision antennas, each measuring 12 meters in diameter.

What is the wavelength range that ALMA observes?

  1. 1 mm to 10 mm

  2. 100 nm to 1 μm

  3. 10 μm to 100 μm

  4. 100 μm to 1 mm


Correct Option: A
Explanation:

ALMA observes millimeter and submillimeter wavelength radiation, which falls between the infrared and microwave regions of the electromagnetic spectrum.

What is the angular resolution of ALMA?

  1. 0.1 arcseconds

  2. 1 arcsecond

  3. 10 arcseconds

  4. 100 arcseconds


Correct Option: A
Explanation:

ALMA has an angular resolution of 0.1 arcseconds, which allows it to resolve fine details in astronomical objects.

What is the sensitivity of ALMA?

  1. 100 μJy

  2. 1 mJy

  3. 10 mJy

  4. 100 mJy


Correct Option: A
Explanation:

ALMA has a sensitivity of 100 μJy, which means it can detect very faint astronomical signals.

What is the Atacama Large Millimeter Array (ALMA) Partnership?

  1. A collaboration between Europe, North America, and East Asia

  2. A collaboration between Europe, North America, and South America

  3. A collaboration between Europe, North America, and Africa

  4. A collaboration between Europe, North America, and Australia


Correct Option: A
Explanation:

The Atacama Large Millimeter Array (ALMA) Partnership is a collaboration between Europe, North America, and East Asia.

When was ALMA inaugurated?

  1. 2011

  2. 2012

  3. 2013

  4. 2014


Correct Option: C
Explanation:

ALMA was inaugurated in 2013.

What is the total cost of the ALMA project?

  1. $1.4 billion

  2. $1.3 billion

  3. $1.2 billion

  4. $1.1 billion


Correct Option: A
Explanation:

The total cost of the ALMA project is $1.4 billion.

Which country hosts the ALMA Operations Support Facility?

  1. Chile

  2. United States

  3. Japan

  4. Germany


Correct Option: A
Explanation:

Chile hosts the ALMA Operations Support Facility.

What is the name of the ALMA Regional Center in North America?

  1. North American ALMA Science Center (NAASC)

  2. European ALMA Regional Center (EARC)

  3. East Asian ALMA Regional Center (EAARC)

  4. Atacama Large Millimeter Array (ALMA) Partnership


Correct Option: A
Explanation:

The name of the ALMA Regional Center in North America is the North American ALMA Science Center (NAASC).

What is the name of the ALMA Regional Center in Europe?

  1. North American ALMA Science Center (NAASC)

  2. European ALMA Regional Center (EARC)

  3. East Asian ALMA Regional Center (EAARC)

  4. Atacama Large Millimeter Array (ALMA) Partnership


Correct Option: B
Explanation:

The name of the ALMA Regional Center in Europe is the European ALMA Regional Center (EARC).

What is the name of the ALMA Regional Center in East Asia?

  1. North American ALMA Science Center (NAASC)

  2. European ALMA Regional Center (EARC)

  3. East Asian ALMA Regional Center (EAARC)

  4. Atacama Large Millimeter Array (ALMA) Partnership


Correct Option: C
Explanation:

The name of the ALMA Regional Center in East Asia is the East Asian ALMA Regional Center (EAARC).

What is the primary scientific goal of ALMA?

  1. To study the formation and evolution of stars and galaxies

  2. To detect and characterize exoplanets

  3. To observe the cosmic microwave background

  4. To search for extraterrestrial life


Correct Option: A
Explanation:

The primary scientific goal of ALMA is to study the formation and evolution of stars and galaxies by observing the millimeter and submillimeter wavelength radiation emitted by cold gas and dust in these regions.

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