Why Bladeless Fans Are a Lie

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Science, Physics, Engineering
•
11th Grade - University
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason bladeless fans are not truly bladeless?
They use a different type of blade.
They are powered by magnets.
They use hidden blades in the base.
They rely on external wind sources.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does Bernoulli's principle contribute to the functioning of bladeless fans?
It increases the speed of the fan blades.
It enhances the durability of the fan.
It creates a zone of low pressure inside the ring.
It reduces the noise produced by the fan.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of inducement in bladeless fans?
It pulls air from the center of the fan.
It reduces the power consumption of the fan.
It increases the temperature of the air.
It changes the color of the fan.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does entrainment play in the operation of bladeless fans?
It helps in cooling the fan motor.
It drags surrounding air along with the main stream.
It reduces the fan's noise.
It stabilizes the fan's base.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much more air can a bladeless fan blow compared to what it takes in?
30 to 40 times more
10 to 20 times more
5 to 7 times more
2 to 3 times more
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