NEW DEVICE SPEEDS UP CIVIL AVIATION - SOUND

The video discusses the flourishing overseas airways of Great Britain and the slow development of internal air services. It introduces a new high-speed plane service between London and Glasgow, highlighting technological advancements like retractable undercarriages to reduce wind resistance and increase cruising speed.

What is the current state of overseas airways in Great Britain compared to internal air services?

• Overseas airways are flourishing, while internal services are slow to develop.

• Both are struggling to develop.

• Both are flourishing equally.

• Internal air services are flourishing, while overseas airways are slow to develop.

What is the planned travel time for the new high-speed plane service between London and Glasgow?

• Between two-and-a-half and three hours

• Between three and four hours

• Between two and two-and-a-half hours

• Between one and two hours

What technological feature allows the new plane to achieve higher speeds?

• Advanced navigation systems

• More powerful engines

• Retractable undercarriage

• Lighter materials

How does retracting the undercarriage affect the plane's performance?

• It increases wind resistance.

• It decreases cruising speed.

• It has no effect on performance.

• It reduces wind resistance and increases cruising speed.

What is the increase in cruising speed due to the new design?

• From 130 to 160 miles per hour

• From 120 to 150 miles per hour

• From 110 to 143 miles per hour

• From 100 to 120 miles per hour