LAT MCQs

Alexander Graham Bell is commonly credited with the practical telephone.
He received a major U.S. telephone patent in 1876.

An anemometer measures wind speed.
It is commonly used at weather stations.

Johannes Gutenberg developed a movable-type printing system in Europe.
It greatly expanded the production of books.

Light travels at about 300,000 kilometers per second in vacuum.
The exact value is approximately 299,792 km/s.

James Watt greatly improved steam-engine efficiency.
His work supported the Industrial Revolution.

Mercury is the innermost planet of the Solar System.
It completes an orbit faster than any other planet.

Alfred Nobel invented dynamite.
His fortune later funded the Nobel Prizes.

Jupiter is the largest planet by mass and diameter.
It is a gas giant with many moons.

Rudolf Diesel developed the compression-ignition engine.
The diesel engine was designed for high efficiency.

Mars appears reddish because of iron oxide on its surface.
It is therefore called the Red Planet.

Louis Braille created a tactile reading and writing system.
It uses patterns of raised dots.

Saturn has an extensive system of icy rings.
Other giant planets also have rings, but Saturn's are most visible.