Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering

A. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{3}{2} \times \frac{{{\text{dH}}}}{{\text{H}}}$$

B. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = 2 \times \frac{{{\text{dH}}}}{{\text{H}}}$$

C. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{5}{2} \times \frac{{{\text{dH}}}}{{\text{H}}}$$

D. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = 3 \times \frac{{{\text{dH}}}}{{\text{H}}}$$

A. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{1}{2} \times \frac{{{\text{dH}}}}{{\text{H}}}$$

B. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{3}{4} \times \frac{{{\text{dH}}}}{{\text{H}}}$$

C. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{{{\text{dH}}}}{{\text{H}}}$$

D. $$\frac{{{\text{dQ}}}}{{\text{Q}}} = \frac{3}{2} \times \frac{{{\text{dH}}}}{{\text{H}}}$$

A. $${\text{Z}} + \frac{{\text{p}}}{{\text{w}}} + \frac{{{{\text{v}}^2}}}{{2{\text{g}}}} = {\text{constant}}$$

B. $${\text{Z}} + \frac{{\text{p}}}{{\text{w}}} - \frac{{{{\text{v}}^2}}}{{2{\text{g}}}} = {\text{constant}}$$

C. $${\text{Z}} - \frac{{\text{p}}}{{\text{w}}} + \frac{{{{\text{v}}^2}}}{{2{\text{g}}}} = {\text{constant}}$$

D. $${\text{Z}} - \frac{{\text{p}}}{{\text{w}}} - \frac{{{{\text{v}}^2}}}{{2{\text{g}}}} = {\text{constant}}$$

A. Venturimeter

B. Orifice plate

C. Nozzle

D. All of the above

A. Mach number

B. Froude number

C. Reynolds’s number

D. Weber’s number

A. Specific viscosity

B. Viscosity index

C. Kinematic viscosity

D. Coefficient of viscosity

A. Critical velocity

B. Velocity of approach

C. Sub-sonic velocity

D. Super-sonic velocity

A. $${{\text{C}}_{\text{c}}} \times {{\text{C}}_{\text{v}}}$$

B. $${{\text{C}}_{\text{c}}} \times {{\text{C}}_{\text{r}}}$$

C. $${{\text{C}}_{\text{v}}} \times {{\text{C}}_{\text{r}}}$$

D. $$\frac{{{{\text{C}}_{\text{c}}}}}{{{{\text{C}}_{\text{r}}}}}$$

A. 0.62

B. 0.76

C. 0.84

D. 0.97

A. Steady uniform flow

B. Steady non-uniform flow

C. Unsteady uniform flow

D. Unsteady non-uniform flow