GATE 2014 Chemical Engineering Q11: Gradient of a Scalar Variable

The vector 𝒗 ⃗⃗ is defined as Which one of the following is the CORRECT value of divergence of 𝒗 ⃗⃗ , evaluated at the point (𝑥,𝑦,𝑧)=(3,2,1) ?

For a two-dimensional plane, the unit vectors, (𝑒𝑟,𝑒𝜃) of the polar coordinate system and (𝑖,𝑗) of the cartesian coordinate system, are related by the followi...

Consider the tank level control system shown in the figure, where the cross-sectional area of the tank is A. Assume perfect flow controllers (FC). The level con...