Correct answer
B. Viscous force exerted by air
Explanation
The correct answer is Viscous force exerted by air.
In case of a hammer crusher?
Oleum produces fumes of________?
During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________ with increase in the amount of water?
The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the ________?
Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)?
Isotropic materials have the same ________ in all directions?