Question 1
Under ASHRAE Standard 34 safety classification, what does the letter A in A2L indicate?
Correct Answer:
Lower toxicity
Explanation:
The letter A identifies the lower-toxicity class. The 2L portion describes lower flammability with a low burning velocity.
Question 2
What characteristic most directly distinguishes an A2L refrigerant from an A1 refrigerant?
Correct Answer:
It has lower flammability rather than no flame propagation
Explanation:
A1 refrigerants have no flame propagation under the classification test, while A2L refrigerants are mildly flammable and require ignition-control precautions.
Question 3
Which refrigerant is commonly classified as A2L?
Correct Answer:
R-32
Explanation:
R-32 is an A2L refrigerant. R-744 is carbon dioxide, R-717 is ammonia, and R-290 is propane with different safety classifications.
Question 4
Why is ventilation important when working with an A2L refrigerant in an enclosed area?
Correct Answer:
It reduces the chance of a flammable concentration and oxygen displacement
Explanation:
Ventilation helps prevent refrigerant from accumulating to a potentially flammable concentration and also reduces the asphyxiation hazard from oxygen displacement.
Question 5
What is the safest assumption about the location of leaked A2L refrigerant in a poorly ventilated room?
Correct Answer:
It may collect in low areas because many refrigerants are heavier than air
Explanation:
Many HVAC refrigerants are heavier than air and can accumulate near floors, pits, and other low points, so ventilation and leak checks must account for those areas.
Question 1
Exam overview

About this Exam

ASU's ARS445 History of Animation is a rigorous exploration of the art form's evolution. This guide is designed to help students confidently approach Exam 2 by providing practice strategies and insights into the course's content.

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What the Course Entails and Exam Details

While specific course curriculum can vary slightly by semester and instructor, ARS445 typically delves into pivotal periods, influential studios, techniques, and narrative styles that shaped animation history. Students can expect to study global animation, independent filmmakers, and technological advan

 

What to Expect in the Final Exam

The final exam for ASU's ARS445 usually combines multiple-choice questions with potential short answers, essay components, or identification of key works and artists. Students generally have around two hours for the exam, and it is crucial to understand all formatting requirements. Passing score information should be verified with the official syllabus or course instructor, as standard university policies apply.

 

How to Study and Exam Centers

Effective preparation involves reviewing lecture notes, key animated films, and course readings comprehensively. Creating flashcards for major artists, movements, and terminology is highly effective. Practice analyzing animated short films and full-length features discussed in class. Specific instructions for scheduling and taking the exam, including online platforms or physical locations, are communicated by Arizona State University and should be strictly followed.

 

Job Opportunities from the Course

Studying the history of animation can open doors to various career paths. Potential job opportunities include:

  • Animation historian or researcher
  • Curator or archivist for film and media collections
  • Art educator or instructor specializing in animation
  • Film and animation critic or journalist
  • Storywriter or creative consultant with a strong historical foundation
  • Production coordinator or manager roles with a deeper understanding of the medium's context
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