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The air is returning at a lower velocity, so you need a larger size duct.
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3 If you're central AC and heating system has two intake ducts in each room high and low which should be open in the winter when you are heating the house?
First, I will assume that the two "intake" ducts deliver air from the furnace or air conditioner depending on the season. These are usually referred to as "supply ducts." Since air warmer than the surrounding air rises, which would be true if it was coming from the working furnace in winter, the maximum transfer of heat from the air entering the room to the air in the room (by mixing) will take place while the air rises from a supply duct at the low point in the room. Hot air entering from the upper supply duct would stay at the ceiling of the room and only transfer heat to the other air by radiation. The room would be heated mainly by replacement as the cooler air below was drawn to the return duct (usually just one on the main floor in a large common room) which returns the air to the furnace. If the two "intake" ducts come from the furnace, then the other duct should be shut unless it can act as a return to the furnace for heating. Either way, the warmer air should enter as low as possible and the cooler air be drawn out from as low a position as possible. The logic of reversing this system in the summer (cold air entering in the upper ducts and exiting through the [doorway to the one] return duct should be obvious.
Return type of malloc?
void * (If you used your help/manual system, you would get an answer much sooner.)
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2 is larger than 0.8
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Its suppose to say k greater than or equal to 3 k greater than or equal to 6
Is it possible for a function to return more than one value at a time?
No, you can only return one value with a return statement. However, you can return a structure or pointer, so the real answer is yes, though requiring some added complexity.
Which line is the supplyreturn line on a 1996 Chevy pickup?
The fuel supply line is usually larger in diameter than the fuel return line.
Why are return air ducts always bigger than supply air ducts?
Return ducts are under less pressure, but they need to move the same amount of air, so they must be larger.
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A shortage is when there is a LACK (not enough) of that particular resource/product/item. A surplus is when there is EXCESS, or too much of a resource/product/item.
How do you calculate the area of HVAC duct offset and elbow?
In order to calculate the area of HVAC duct offset and elbow, one must first measure the distance between the two. Then the elbow must be larger than any cross section to maintain airflow.
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the consumers pay a larger share of the tax
Is it possible to file an amended tax return in Switzerland if you reported expected income larger than actual income?
yes
Is colorful duct tape stronger than normal non colorful duct tape?
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Considering obesity is a MUCH larger problem in Brazil than famine, the answer is obviously NO.
What is the minimum amount of power supply when a PC uses 225 watts while booting but175 watts when running?
Personally, I wouldn't use less than a 300 Watt power supply in that situation. But then, I never use less than a 500 Watt power supply when replacing a power supply or building a computer. The advantage is, the larger power supply can easily handle the load and will not run as hot. Since electronic components typically fail more rapidly when they get hot, the larger power supply will usually last much longer. But that's just a suggestion.
3 If you're central AC and heating system has two intake ducts in each room high and low which should be open in the winter when you are heating the house?
First, I will assume that the two "intake" ducts deliver air from the furnace or air conditioner depending on the season. These are usually referred to as "supply ducts." Since air warmer than the surrounding air rises, which would be true if it was coming from the working furnace in winter, the maximum transfer of heat from the air entering the room to the air in the room (by mixing) will take place while the air rises from a supply duct at the low point in the room. Hot air entering from the upper supply duct would stay at the ceiling of the room and only transfer heat to the other air by radiation. The room would be heated mainly by replacement as the cooler air below was drawn to the return duct (usually just one on the main floor in a large common room) which returns the air to the furnace. If the two "intake" ducts come from the furnace, then the other duct should be shut unless it can act as a return to the furnace for heating. Either way, the warmer air should enter as low as possible and the cooler air be drawn out from as low a position as possible. The logic of reversing this system in the summer (cold air entering in the upper ducts and exiting through the [doorway to the one] return duct should be obvious.
Why is the adult human heart different from a fetal heart?
Males tend to be bigger than females, and have have a larger proportion of muscle mass. As a consequence, males need bigger hearts to supply the bigger amount of muscle.
Is the price elasticity of supply usually larger in the short run or in the long run?
long run is ever smaller than short run
