Technical Author and Illustrator Interview Questions and Answers

Forces acting on a helicopter include lift, weight, thrust, and drag.

• Lift is generated by the rotor blades as they spin through the air.

• Weight is the force of gravity acting on the helicopter.

• Thrust is produced by the engine to move the helicopter forward.

• Drag is the resistance encountered by the helicopter as it moves through the air.

Types of engines include internal combustion engines, steam engines, electric motors, and jet engines.

• Internal combustion engines: used in cars, motorcycles, and small aircraft

• Steam engines: used in old trains and boats

• Electric motors: used in electric vehicles and appliances

• Jet engines: used in airplanes and some rockets

Forces in aircraft are the external factors that affect the movement and stability of an aircraft.

• There are four primary forces in aircraft: lift, weight, thrust, and drag.

• Lift is the force that allows an aircraft to overcome gravity and stay airborne.

• Weight is the force of gravity acting on the aircraft, pulling it towards the ground.

• Thrust is the force produced by the aircraft's engines to propel it forward.

• Drag is the resistance force that opposes the aircraft's forward mo...read more

The Bernoulli principle states that as the speed of a fluid increases, its pressure decreases.

• Describes the relationship between fluid speed and pressure

• Used in various applications such as airplane wings and carburetors

• Explains how lift is generated in aircraft