GENERAL KNOWLEDGE

GK

INVENTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This invention helps keep food fresh.
A
computer
B
television
C
aeroplane
D
refridgerator
Explanation: 

Detailed explanation-1: -By using a solar refrigerator, a vacuum sealer, a food dehydrator, a fridge thermometer, a smart fridge, or a food storage container, you can keep your food cold and safe from bacteria. These devices and solutions are a great way to reduce food waste and to keep your food fresh for longer.

Detailed explanation-2: -In 1913, American Fred W. Wolf invented the first home electric refrigerator, which featured a refrigeration unit on top of an icebox. Mass production of domestic refrigerators began in 1918 when William C. Durant introduced the first home refrigerator with a self-contained compressor.

Detailed explanation-3: -In 1914, engineer Nathaniel B. Wales of Detroit, Michigan, introduced an idea for a practical electric refrigeration unit, which later became the basis for the Kelvinator. A self-contained refrigerator, with a compressor on the bottom of the cabinet was invented by Alfred Mellowes in 1916.

There is 1 question to complete.