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Questions and Answers
What is service pressure?
What is service pressure?
- The average pressure at which the cylinder is routinely checked
- The minimum pressure at 20°C to which the cylinder is filled
- The recommended pressure at which the cylinder is stored
- The maximum pressure at 70°F to which the cylinder is ordinarily filled (correct)
At what temperature is service pressure typically defined?
At what temperature is service pressure typically defined?
- 100°F (38 °C)
- 70°F (20 °C) (correct)
- 150°F (66 °C)
- 30°F (-1 °C)
How is a cylinder typically filled in relation to its service pressure?
How is a cylinder typically filled in relation to its service pressure?
- To its maximum capacity
- To its minimum capacity
- Ordinarily, to its maximum pressure (correct)
- Only partially, to allow for expansion
What is the unit of temperature in which service pressure is typically measured?
What is the unit of temperature in which service pressure is typically measured?
What happens to the pressure in a cylinder when the temperature increases?
What happens to the pressure in a cylinder when the temperature increases?
How many revolutions should the cylinder valve be turned when in use?
How many revolutions should the cylinder valve be turned when in use?
What should be avoided during closure of the cylinder valve?
What should be avoided during closure of the cylinder valve?
When should the cylinder valve be fully open?
When should the cylinder valve be fully open?
Why is it important to turn the cylinder valve two full revolutions?
Why is it important to turn the cylinder valve two full revolutions?
What is the recommended action when opening the cylinder valve?
What is the recommended action when opening the cylinder valve?
What is the name of the software described in the content?
What is the name of the software described in the content?
What is the number mentioned in the content in relation to PDFelement?
What is the number mentioned in the content in relation to PDFelement?
What is the context in which the term 'volume' is used in the content?
What is the context in which the term 'volume' is used in the content?
What is the purpose of mentioning the cylinder in the content?
What is the purpose of mentioning the cylinder in the content?
What is the relationship between Wondershare and PDFelement?
What is the relationship between Wondershare and PDFelement?
Why are cylinders only partially filled?
Why are cylinders only partially filled?
What happens to the liquid in the cylinder if the temperature increases?
What happens to the liquid in the cylinder if the temperature increases?
What is the purpose of the extra space in partially filled cylinders?
What is the purpose of the extra space in partially filled cylinders?
Why is it necessary to leave some space in the cylinder?
Why is it necessary to leave some space in the cylinder?
What is the consequence of not leaving enough space in the cylinder?
What is the consequence of not leaving enough space in the cylinder?
What happens to the composition of the mixture as it is being used up?
What happens to the composition of the mixture as it is being used up?
What is the effect of the mixture's composition change on the oxygen levels?
What is the effect of the mixture's composition change on the oxygen levels?
What is the result of the changes in the mixture's composition?
What is the result of the changes in the mixture's composition?
What is the relationship between the nitrous oxide content and the oxygen levels in the mixture?
What is the relationship between the nitrous oxide content and the oxygen levels in the mixture?
What is the trend in the mixture's composition as it is used up?
What is the trend in the mixture's composition as it is used up?
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Study Notes
Service Pressure
- Maximum pressure at 70°F (20°C) to which the cylinder is ordinarily filled
Cylinder Valve Usage
- Valve should be fully open when in use
- Valve must be turned two full revolutions
Cylinder Valve Closure
- Avoid over-tightening of the valve during closure
Cylinder Capacity
- Quantified as the volume of water the cylinder could hold if full
Cylinder Filling
- Cylinders are only partially filled to allow space for more liquid to vaporize if the temperature increases
- This allows for changes in the composition of the mixture, becoming increasingly rich in nitrous oxide content and progressively more hypoxic
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