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Redwood viscometer no1 is used to find the viscosity of the _________ liquids.

(a) High viscous

(b) Low viscous

(c) Moderate viscous

(d) No viscous

The question was posed to me during an interview.

My doubt is from Viscosity and Viscosity Index in portion Lubricants of Applied Chemistry

1 Answer

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The correct option is (b) Low viscous

Explanation: The redwood viscometer no1 is used to find out the viscosity of the low viscous liquids. They have an efflux of 2000seconds or less. Redwood viscometer no2 is used to find the viscosity of the high viscous liquids like fuel oils.

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