Do You Know
Questions & Answers on General Knowledge.
Where does the Sun shine the most?
In the United States, Yuma, Arizona has a yearly average of 90 percent of sunny days, or more than 4,000 sunny hours per year. St. Petersburg, Florida, is a close second; that city had 768 consecutive sunny days from February 9, 1967 to March 17, 1969. If you were to travel, you would find the eastern end of the Sahara Desert in North Africa the sunniest—the Sun shines there 97 percent of the time.
What is horsepower?
How did the Second World War end?
When did people start living in Europe?
How was mail delivered before there were mail carriers?
Why do high altitude places have different cooking temperatures than sea-level places?
What is light?
When you shoot a bullet straight upward, doesn't it accelerate upward?
Why do we say that someone looking for trouble has a “chip on his shoulder”?
What is a desert?
Why are "please" and "thank you" magic words?
What are feet for?
Why does a body at rest remain at rest and a body in motion remain in motion, in the absence of unbalanced force?
Was there ever a planet named Vulcan, as in the Star Trek series?
Which are Asia's largest cities?
What is the difference between spark ignition engines and diesel engines?
Why do I need sleep?
How long do trees and shrubs live?
Why are royal pythons also called ball pythons?
What changes occur to wood when it is permanently bent with the aid of steam?
Which is the highest volcano on Earth?
What happened to King Louis XVI?
What is special about the Kermode bear?
Are fiddleheads and ferns related?
How dangerous is the radiation from high voltage power lines?
Can a compound have triple bonds? If so, please give an example.
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Precautions while using Power Supply
Fan equipped Power Supplies
Power Supplies equipped with a fan have forced air cooling. Do not block the ventilation holes on the fan installation surface and the opposite surface. The cooling effect will decrease if the holes are blocked.Always secure the finger guard when replacing the fan.
Always turn OFF the input power before replacing the fan. The input power terminals and internal circuits have a high voltage.Do not touch the internal parts when replacing the fan. Internal parts have a high voltage and high temperature immediately after the input power is turned OFF.Do not allow the removed screws or tools to enter the Power Supply when replacing the fan.Use the specified installation direction and torque specified for each product when replacing the fan.