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Questions and Answers
A vacuum gage connected to a chamber reads 5.88 psi at a location where the atmospheric pressure is 14.5 psi. Determine the absolute pressure in the chamber.
A vacuum gage connected to a chamber reads 5.88 psi at a location where the atmospheric pressure is 14.5 psi. Determine the absolute pressure in the chamber.
14.5 psi + 5.88 psi = 20.38 psi
A 3-kg plastic tank that has a volume of 0.2 m³ is filled with liquid water. Assuming the density of water is 1000 kg/m³, determine the weight of the combined system.
A 3-kg plastic tank that has a volume of 0.2 m³ is filled with liquid water. Assuming the density of water is 1000 kg/m³, determine the weight of the combined system.
The mass of water is density * volume = 1000 kg/m³ * 0.2 m³ = 200 kg. The total mass of the system is 3 kg + 200 kg = 203 kg. The weight of the system = mg = 203 kg*9.8 m/s² = 1989.4 N. The answer must be in Newtons.
Consider an alcohol and a mercury thermometer that read exactly 0°C at the ice point and 100°C at the steam point. Equal parts in both thermometers do you think these thermometers will give exactly the same reading at a temperature of, say, 60°C? Explain.
Consider an alcohol and a mercury thermometer that read exactly 0°C at the ice point and 100°C at the steam point. Equal parts in both thermometers do you think these thermometers will give exactly the same reading at a temperature of, say, 60°C? Explain.
False (B)
Flashcards
What is the LG EasyLoadâ„¢ feature?
What is the LG EasyLoadâ„¢ feature?
The LG EasyLoadâ„¢ feature allows you to open the dryer door from the top, hamper-style, when loading the dryer to help guide clothes into the drum and prevent them from falling onto the floor. When unloading the dryer or loading bulkier items, use the swing door for easy access to the drum.
What is the Flow Senseâ„¢ duct blockage sensing system?
What is the Flow Senseâ„¢ duct blockage sensing system?
The Flow Senseâ„¢ duct blockage sensing system detects and alerts you to restrictions in the installed household ductwork that reduce exhaust airflow through the dryer. If you see the alert: Clean or repair the ducts to remove the restrictions. Keep your ducts free of blockage to help increase efficiency and reduce long drying times caused by blocked ducts.
What are the Steam Functions?
What are the Steam Functions?
LG's steam technology allows you to inject fabrics with a swirling jet of steam to refresh clothes, reduce static, and make ironing easier. Simply select the Steam Freshâ„¢ cycle or Wrinkle Care cycle.
Why is leveling the dryer important?
Why is leveling the dryer important?
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What are some important safety precautions when venting the dryer?
What are some important safety precautions when venting the dryer?
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When choosing the installation location, what weight needs to be considered?
When choosing the installation location, what weight needs to be considered?
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What is needed for connecting an electric dryer?
What is needed for connecting an electric dryer?
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What is the proper way to connect the dryer to a power outlet?
What is the proper way to connect the dryer to a power outlet?
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What type of items should not be placed in the dryer?
What type of items should not be placed in the dryer?
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What is important about the dryer exhaust system?
What is important about the dryer exhaust system?
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What is the potential consequence of not following safety warnings?
What is the potential consequence of not following safety warnings?
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What is the risk of improper grounding?
What is the risk of improper grounding?
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Where should the dryer not be installed?
Where should the dryer not be installed?
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What is a requirement for the installation location?
What is a requirement for the installation location?
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What is needed for the floor in the installation location?
What is needed for the floor in the installation location?
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What is important for installing a gas dryer?
What is important for installing a gas dryer?
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What is a safety requirement for the dryer?
What is a safety requirement for the dryer?
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What substances can gas appliances potentially expose you to?
What substances can gas appliances potentially expose you to?
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What is a restriction on appliances in the same closet as a dryer?
What is a restriction on appliances in the same closet as a dryer?
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What is important for maintaining the dryer area?
What is important for maintaining the dryer area?
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What is the safety requirement for the electrical outlet?
What is the safety requirement for the electrical outlet?
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What should be done with the packing materials?
What should be done with the packing materials?
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What is the minimum height requirement for a garage installation?
What is the minimum height requirement for a garage installation?
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Where should the dryer not be installed?
Where should the dryer not be installed?
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What should not be placed on top of the dryer?
What should not be placed on top of the dryer?
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What is necessary before using the dryer?
What is necessary before using the dryer?
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What type of duct material is recommended for the dryer vent?
What type of duct material is recommended for the dryer vent?
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What are the temperature and weather considerations for the dryer?
What are the temperature and weather considerations for the dryer?
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Study Notes
Chapter 1 - Introduction to Thermodynamics
- A vacuum gauge connected to a chamber reads 5.8 psi at a location where the atmospheric pressure is 14.5 psi. Determine the absolute pressure in the chamber.
Example 1
- Pressure of a fluid at rest increases with depth due to added weight.
Example 2: Measuring Atmospheric Pressure with a Barometer
- Determine the atmospheric pressure at a location where the barometric reading is 740 mmHg, and the gravitational acceleration is g = 9.805 m/s². Assume the temperature of mercury to be 10°C, at which its density is 13,570 kg/m³.
Problem 1-1
- A 3-kg plastic tank that has a volume of 0.2 m³ is filled with liquid water. Assuming the density of water is 1000 kg/m³, determine the weight of the combined system.
Problem 1-2
- Consider an alcohol and a mercury thermometer that read exactly 0°C at the ice point and 100°C at the steam point. The distance between the two points is divided into 100 equal parts in both thermometers. Do you think these thermometers will give exactly the same reading at a temperature of, say, 60°C? Explain.
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