[amp_mcq option1=”Wings” option2=”Engines” option3=”Air screw” option4=”None of these” correct=”option3″]<\/p>\n
The correct answer is C. Air screw.<\/p>\n
An air screw is a type of propeller that is used to move air. It is typically used in small aircraft, such as drones, to provide lift. However, air screws are not typically used in large aircraft, such as aeroplanes, because they are not as efficient as other types of propellers, such as the turbofan engine.<\/p>\n
Wings are a key component of aeroplanes. They provide lift, which is the force that keeps the aeroplane in the air. Wings are typically made of lightweight materials, such as aluminum or composite materials, and they are often curved on top and flat on the bottom. This shape helps to create lift when the aeroplane moves through the air.<\/p>\n
Engines are also a key component of aeroplanes. They provide the power that drives the propellers or jets, which in turn provide the thrust that moves the aeroplane forward. Engines are typically powered by jet fuel or gasoline, and they can be either piston engines or turbine engines.<\/p>\n
Therefore, the correct answer is C. Air screw.<\/p>\n","protected":false},"excerpt":{"rendered":"
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