Q1: An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a

ANS:B - heat exchanger

The equipment that converts the latent or sensible heat of one fluid into the latent heat of vaporization of another is called a "heat exchanger." Heat exchangers are devices designed to transfer heat between two or more fluids, without the fluids coming into direct contact with each other, to achieve desired temperature changes or phase transitions. So, the correct answer is: "heat exchanger"