# GATE Questions & Answers of Kinematics of flow

## What is the Weightage of Kinematics of flow in GATE Exam?

Total 4 Questions have been asked from Kinematics of flow topic of Hydraulics subject in previous GATE papers. Average marks 1.25.

In a two-dimensional steady flow field, in a certain region of the x-y plane, the velocity component in the x-direction is given by vx = x2 and the density varies as $\rho =\frac{1}{x}$ . Which of the following is a valid expression for the velocity component in the y-direction, vy ?

A nozzle is so shaped that the average flow velocity changes linearly from 1.5 m/s at the beginning to 15 m/s at its end in a distance of 0.375 m. The magnitude of the convective acceleration (in m/s2) at the end of the nozzle is _________

For a two dimensional flow field, the stream function $\Psi$ is given as $\Psi =\frac{3}{2}\left({y}^{2}-{x}^{2}\right)$.The magnitude of discharge occurring between the stream lines passing through points (0,3) and (3,4) is: