JET SILENCER - SOUND

The video discusses a new invention aimed at reducing noise levels in aircraft. The invention involves enclosing the airplane in an acoustically sealed box and using a muffler to reduce the sound of the jet efflux. This is the first attempt to silence an engine in an aircraft, and the results have been satisfactory, benefiting both workers and local residents by reducing noise pollution.

What is the primary goal of the new invention discussed in the video?

• To enhance the design of aircraft

• To increase the speed of aircraft

• To reduce noise levels in the surrounding area

• To improve fuel efficiency

How does the invention aim to reduce noise from the aircraft?

• By using a quieter engine

• By enclosing the aeroplane in an acoustically sealed box

• By reducing the speed of the aircraft

• By flying at higher altitudes

What is unique about this invention compared to previous methods?

• It is the first attempt to silence an engine in an aircraft

• It uses a new type of fuel

• It is the first to use solar power

• It is designed for military aircraft only

What has been the result of the experiment so far?

• It has increased noise levels

• It has been very satisfactory

• It has shown no noticeable change

• It has been unsatisfactory

Who is expected to benefit from the noise reduction achieved by the invention?

• Only the government

• Only the aircraft manufacturers

• Only the pilots

• Both the workers and local residents