Thang máy

The earliest elevators were built in ancient ​ (a)   , and were powered by human or animal labor.

• Greece and Rome
• China
• Babylon
• Egypt

The world's first passenger elevator was installed in a ​ ​ (a)   department store in ​ (b)   . It was powered by ​ (c)   and had only one floor.

• New York City
• 1857
• steam
• London
• 1957
• electricity
• gas

The invention of the safety elevator by Elisha Otis in 1852 was a major turning point in the development of elevators. This invention made it possible to build ​ (a)   and paved the way for modern skyscrapers.

• taller buildings
• bigger buildings
• more beautiful buildings
• lower buildings

Elevators are now an essential part of modern urban life. It is estimated that there are over ​ (a)   elevators in operation around the world, transporting billions of people every day.

• 1 million
• 90,000
• 9,000,000
• 10 million
• 100 million
• 1 billion

The world's fastest elevator is currently located in the ​ (a)   in China. It can travel at speeds of up to ​ (b)   (46.6 mph).

• Shanghai Tower
• 75 km/h
• 60 km/h
• Taipei 101 - Taiwan

Elevators are powered by a variety of mechanisms, including electric motors, hydraulic systems, and even ropes and ​ (a)   .

• pulleys
• inclined plane
• lever

Elevators can be designed to be energy-efficient and environmentally friendly. Some elevators use regenerative braking to capture energy that would otherwise be lost during operation, and some are powered by renewable energy sources such as ​ (a)   or ​ (b)   power.

• solar
• wind
• natural gas

What is the main purpose of an elevator?

​ ​ (a)  

• To transport people and goods vertically
• To transport people and goods horizontally
• To generate electricity
• To provide ventilation

What was the power source of the world's first passenger elevator?

​ (a)  

• Steam
• Electricity
• Hydraulic pressure
• Animal labor

What invention paved the way for the development of modern skyscrapers?

​ (a)  

• The safety elevator
• The electric motor
• The hydraulic lift
• The rope and pulley system