**841. The curve of metacentre for a floating body ____________ the curve of buoyancy?**

A. Is always below**B. Is the evolute of**

C. Intersects at right angle

D. Is tangential to

**842. What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe) ?**

A. 0.5

B. 1

C. 1.5**D. 2**

**843. Gradually varying fluid flow is an example of ____________ flow?****A. Non-steady uniform**

B. Non-steady non-uniform

C. Steady uniform

D. Steady non-uniform

**844. The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe) ?****A. V2**

B. 1/V2

C. 1/V

D. V

**845. Weber number is the ratio of inertial force to _____________ force?****A. Surface tension**

B. Gravity

C. Viscous

D. Elastic

**846. Hydraulic _____________ works on the principle of Pascalâ€™s law of transmission of fluid pressure?****A. Press**

B. Turbine

C. Pump

D. Coupling

**847. The discharge through a semi-circular weir varies as (where, H = Head of liquid.) ?**

A. H**B. H2**

C. H3/2

D. H1/2

**848. The valve used for very remote and accurate control of fluid is a _____________ valve?****A. Needle**

B. Globe

C. Gate

D. Butterfly

**849. Quicksand is an example of a __________ fluid?**

A. Bingham plastic**B. Dilatant**

C. Newtonian

D. Pseudo plastic

**850. The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ____________ fluid?**

A. Newtonian**B. Pseudo-plastic**

C. Dilatent

D. Bingham plastic

**NOTEIF YOU THINK ANY OF THE MCQ ABOVE IS WRONG.PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.THANK YOU**