Question : Galvanisation is the 

Option 1: deposition of zinc on iron

Option 2: deposition of tin on iron

Option 3: deposition of copper on iron

Option 4: deposition of aluminium on iron

Question : The metallic contituents of hard water are:

Option 1: Magnesium calcium and tin

Option 2: Iron ,tin and calcium

Option 3: Calcium ,magnesium and iron

Option 4: Magnesium ,tin and iron

Question : Which of the following industries is its major consumer in India?

Option 1: Iron and steel

Option 2: Aviation

Option 3: Automobile

Option 4: Chemical

Question : The prehistoric period in the early development of human beings is commonly known as the_______.

Option 1: Old Stone Age

Option 2: Mesolithic Age

Option 3: Iron Age

Option 4: New Stone Age

Question : The motion of a body around a circular path is an example of

Option 1: Uniform velocity, variable acceleration

Option 2: Uniform speed, uniform velocity

Option 3: Uniform speed, variable velocity

Option 4: Uniform speed, variable acceleration