(a) List two examples each of substances with:
(i) low viscosity;
(ii) high viscosity.
(b) When is a liquid said to be viscostatic?
Verified Correct Answer: .
Physical Principles & Numerical Solution
(a)(i) Substances with ions viscosity are: water, ethanol, salt solution, kerosine, methylated spirit, etc.
(ii) Substances with high viscosity: engine oil, glycerine, palm oil, etc.
(b) A liquid is viscostatic when its viscosity does not change appreciably with change in temperature.
Source: Myschool Past Questions Archive (Record #53442)