List of top Water Engineering and Management Questions on Fluid Mechanics

Match List-I with List-II\[ \begin{array}{|c|c|} \hline \textbf{Type of fluids} & \textbf{Relationship between shear stress and velocity gradient} \\ \hline (A) \text{Newtonian fluid} & (III) \text{Linear} \\ (B) \text{Non-Newtonian fluid} & (IV) \text{Non-linear} \\ (C) \text{Ideal Fluid} & (I) \text{Zero velocity gradient} \\ (D) \text{Ideal Plastic} & (II) \text{With definite yield stress and linear relationship} \\ \hline \end{array} \]

Match List-I with List-II

\[ \begin{array}{|c|c|} \hline \textbf{Dimensionless number} & \textbf{Types of forces} \\ \hline (A) \text{Euler's number} & (IV) \text{Compressibility force} \\ (B) \text{Froude's number} & (II) \text{Gravity force} \\ (C) \text{Mach number} & (III) \text{Surface Tension} \\ (D) \text{Weber number} & (I) \text{Pressure force} \\ \hline \end{array} \]

Dynamic viscosity of a fluid is 2.2 poise and specific gravity is 0.7. Then kinematic viscosity in SI units is:

Match List-I with List-II

List-IList-II
(A) Young's modulus(II) Stress to strain within elastic limit
(B) Poisson's ratio(I) Lateral strain to linear strain within elastic limit
(C) Bulk modulus(IV) Direct stress to corresponding volumetric strain
(D) Rigidity modulus(III) Shear stress to shear strain within elastic limit

Choose the correct answer from the options given below:

What will be the degree of BMD curve, if the load intensity is of \(n\) degree?
A beam of triangular cross-section is subjected to a shear force of 50kN. The base width of the section is 250 mm and the height is 200 mm. The beam is placed with its base horizontal. The shear stress at the neutral axis will be nearly-
Consider the following salient points in a stress-strain curve of mild steel bar: (A) Yield point
(B) Breaking point
(C) Proportionality limit
(D) Ultimate point
The correct sequence in which they occur while testing the mild steel bar in tension from initial zero strain to failure is:
What are the support reactions at the fixed end of the cantilever beam of 3 m length as shown in the diagram below?
The failure theory which is the most conservative for ductile materials is
A point load applied at shear center induces
A beam has the same section throughout its length with moment of inertia \(I = 1 \times 10^8 \, \text{mm}^4\). It is subjected to a uniform BM = 40 kN·m, \(E = 2 \times 10^5 \, \text{N/mm}^2\). What is the radius of curvature of the circle into which the beam will bend in the form of an arc of a circle?
An open channel of symmetric right-angled triangular cross-section is conveying a discharge \( Q \). If \( g \) is the acceleration due to gravity, what is the critical depth for this channel?
The sequent ratio in a hydraulic jump formed in a horizontal rectangular channel is 16.48. The Froude number of the Supercritical stream is:
Which one of the following condition is a typical characteristics of critical flow? (Symbols have their usual meaning)
The condition for irrotational flow is given by:
The gauge pressure at the surface of a liquid of density $900 \, \text{kg/m}^3$ is $0.4 \, \text{bar}$. If the atmospheric pressure is $1 \times 10^5 \, \text{Pa}$, calculate the absolute pressure at a depth of $50 \, \text{m}$.
In a static fluid with $y$ as the vertical direction, the pressure variation is given by:
1 Stoke is equal to:
What will be the maximum capillary rise for a tube having an internal diameter of $0.1$ mm, when it is held vertical with the bottom end dipped in pure water taken in a trough? Consider the temperature of water to be $20^\circ$C, the value of surface tension ($T_s$) is $72.8 \times 10^{-6}$ kN/m, and $\gamma_w = 9.79$ kN/m3.