CAT Questions

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Strength of concrete increases with increase in water cement ratio as the strength of the cement is directly proportional to water cement ratio.

Fixed Foreign Exchange rate can be changed by Reserve Bank Of India (RBI).

Kalachakra ceremony is associated with Buddhism. It is a way of planting a seed, and the seed will have karmic effect. One doesn't need to be present at the Kalachakra ceremony in order to receive its benefits.

Resistivity :

Resistivity is a measure of the resistance to the flow of electrons. 

Conductivity :

Conductivity is just the inverse of resistivity, σ = 1/ρ, where σ is conductivity and ρ is resistivity.

Example:

Think of a pipe and water, the bigger the pipe, the easier water can flow and thus the lower the resistance. 

Cerebrum is the largest region of the brain.

A fossil is a traces or remainings of plants and animals that lived in the past. The fossil record provides evidence of a common ancestor to many species is the option that best describes the fossil record.