Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
3.1. Pair Applications Characteristics
This section
Practice test
12 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
4 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is the main difference between VARS and traditional refrigeration systems?
Hint
Think about energy sources.
- 2.
Name one application of water-lithium bromide.
Hint
Consider where you'd find cooling technology.
- 3.
What does VARS stand for?
- Vapor Appliance Refrigeration Systems
- Vapor Absorption Refrigeration Systems
- Vapor Air Refrigeration Systems
Hint
Focus on the term that describes the cooling process.
- 4.
Ammonia is a safe refrigerant.
- True
- False
Hint
Consider safety precautions required.
- 5.
Design a simple VARS for a small community that relies on solar panels. Discuss your choice of absorbent-refrigerant pair and justify your choice based on environmental impact and safety.
Hint
Consider the regional climate and safety factors.
- 6.
Evaluate the operational challenges of using ammonia in residential applications and propose solutions to mitigate those issues.
Hint
Think about safety improvements and alternatives.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting