Hydraulics And Fluid Mechanics MCQ Questions & Answers | Civil Engineering

A. less man the vapour pressure over the plane surface

B. equal to the vapour pressure over the plane surface

C. greater than the vapour pressure over the plane surface

D. zero

A. is steady

B. is one dimensional

C. velocity is uniform at all the cross sec-tions

D. all of the above

A. pressure

B. flow

C. velocity

D. dsscharge

A. comparing two identical equipments

B. designing models so that the result can be converted to prototypes

C. comparing similarity between design and actual equipment

D. hydraulic designs

A. The absolute roughness of a pipe de-creases with time

B. A pipe becomes smooth after using for long time

C. The friction factor decreases with time

D. The absolute roughness increases with time

A. The pressure intensity at vena contracta is atmospheric

B. Contraction is least at vena contracta

C. Stream lines are parallel throughout the jet at vena contracta

D. Coefficient of contraction is always less than one

A. $$\frac{{{\text{Dynamic viscosity}}}}{{{\text{Density}}}}$$

B. $${\text{Dynamic viscosity}} \times {\text{Density}}$$

C. $$\frac{{{\text{Density}}}}{{{\text{Dynamic viscosity}}}}$$

D. $$\frac{1}{{{\text{Dynamic viscosity}} \times {\text{Density}}}}$$

A. laminar flow

B. transition flow

C. turbulent flow

D. critical flow

A. Venturimeter

B. hot wire anemometer

C. rotameter

D. pitot tube

A. 51 cm

B. 50 cm

C. 52 cm

D. 52.2 cm