Hydrometer is used to determine ____ ?
A. specific gravity of solids
B. specific gravity of gases
C. specific gravity of liquids
D. All of them
Hydraulics and Fluid mechanics
Hydraulics and fluid mechanics MCQs with answers and explanations for civil engineering students. Fluid mechanics and hydraulic machines MCQs for civil engineering exams. Fluid mechanics & hydraulic machines questions with answers for competitive exams.
For hypersonic flow, the Mach number is _____ ?
A. greater than 4
B. greater than 2
C. unity
D. All of them
Normal depth in open channel flow is the depth of flow corresponding to _____ ?
A. critical flow
B. uniform flow
C. steady flow
D. unsteady flow
Pitot tube is used for measurement of _____ ?
A. velocity
B. dsscharge
C. pressure
D. All of them
Total energy of each particle at various places in the case of perfect incompres sible fluid flowing in continuous sream _____ ?
A. keeps on decreasing
B. may increase/decrease
C. keeps on increasing
D. remains constant
Equation of continuity holds good when the flow _____ ?
A. velocity is uniform at all the cross sec-tions
B. is steady
C. is one dimensional
D. All of them
A large Roynold number is indication of _____ ?
A. steady flow
B. highly turbulent flow
C. smooth and streamline flow
D. laminar flow
In a forced vortex, the velocity of flow everywhere within the fluid is _____ ?
A. zero
B. non-zero finite
C. maximum
D. minimum
Two pipe systems can be said to be equivalent, when the following quantites are same ______ ?
A. flow and length
B. friction factor and diameter
C. length and diameter
D. friction loss and flow
At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be _____ ?
A. maximum
B. zero
C. minimum
D. could be any value