Safran Engineering Services India Interview Questions, Process, and Tips

Airplanes propel through the use of jet engines or propellers.

• Jet engines work by sucking in air and compressing it before mixing it with fuel and igniting it to create a high-pressure exhaust that propels the plane forward.

• Propellers work by spinning and creating a force that pushes the plane forward.

• Some planes also use a combination of both jet engines and propellers.

• The shape of the wings also plays a role in prope...read more

The plane moves forward during cruise because of the forward momentum it gained during takeoff.

• During takeoff, the plane accelerates and gains forward momentum.

• Once in cruise, the plane maintains its forward momentum even if thrust equals drag.

• The forward momentum allows the plane to continue moving forward.

Nacelles are aerodynamic structures on aircraft that enclose engines. They help in reducing noise by providing sound insulation and directing exhaust gases.

• Nacelles are structures on aircraft that house engines.

• They are designed to be aerodynamic to reduce drag and improve fuel efficiency.

• Nacelles provide sound insulation to reduce noise generated by the engines.

• They also help in directing exhaust gases away from the a...read more

Bulletproof jackets are made using a composite material called Kevlar.

• Kevlar is a strong and lightweight synthetic fiber.

• It is five times stronger than steel on an equal weight basis.

• Kevlar is resistant to cuts, abrasions, and heat.

• It is commonly used in bulletproof vests, helmets, and other protective gear.