GATE Questions

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Usain Bolt is branded as "Fast Man on Earth".

Energy can be transferred from one system to the other. The rate at which energy is transferred from one system to other system is called POWER. Energy transferred in one second is called a watt.

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

Bicycle is a compound machine in the above given options. A compound machine is a machine that is formed by two or more simple machines.

S8 is an elemental form of sufur. In elemental form it can't be reduced or oxidized. Hence, it oxidation number is zero and thus sulfur is zerovalent here.

The Sun is essentially all colors mixed together, which appear to our eyes as white. The brightest color emitted by the sun is yellow-green.