Question

printer's ink is an example of
1)Newtonian fluid
2)Non Newtonian fluid
3)Ideal fluid
4)none of the above
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Answer 1

Answer:

answer is rheopectic fluid

Explanation:

Rheopectic fluids, such as some lubricants, thicken or solidify when shaken. The opposite and much more common type of behaviour, in which fluids become less viscous the longer they undergo shear, is called thixotropy. Examples of rheopectic fluids include gypsum pastes and printer inks.

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Answer 2

The correct answer is OPTION 2: The Printer's ink is an example of Non-newtonian fluid.

• The tendency of some non-Newtonian fluids to show a time-dependent rise in viscosity (time-dependent viscosity) is known as rheopecty or rheopexy.
• The longer the fluid is sheared, the higher its viscosity.
• When rheopectic fluids, such as some lubricants, are shaken, they thicken or solidify.
• Thixotropy is the polar opposite of viscotropy, in which fluids become less viscous after being sheared over extended periods.
• Gypsum pastes and printer inks are examples of rheopectic fluids.