Q1: Kinematic viscosity of liquids by equation is determined by :

ANS:C - Saybolt universal viscometer

The kinematic viscosity of liquids is determined by the Redwood viscometer, Engler viscometer, and Saybolt universal viscometer. Each of these viscometers is designed to measure the viscosity of liquids, but they use different units and methods. The choice of viscometer depends on the type of liquid being tested and the preferred units of measurement.

• The Redwood viscometer is primarily used for testing petroleum products and measures the time it takes for a certain volume of liquid to flow through a specific orifice at a particular temperature. The viscosity is expressed in Redwood seconds.
• The Engler viscometer measures the flow time of a volume of liquid through an orifice at a specified temperature and compares it with the flow time of a reference liquid (usually water or a standard oil) under the same conditions. The viscosity is expressed as degrees Engler.
• The Saybolt universal viscometer measures the time it takes for a fixed volume of liquid to flow through a calibrated tube at a specific temperature. The viscosity is expressed in Saybolt seconds.

These viscometers provide a means to measure the kinematic viscosity of liquids, which is a crucial parameter in various industries, including petroleum, chemical, and food processing. Therefore, to determine the kinematic viscosity of liquids, one can use the Redwood viscometer, Engler viscometer, or Saybolt universal viscometer.