A. less than 2000
B. between 2000 and 4000
C. more than 4000
D. less than 4000
E. none of the above
Hydraulics and Fluid Mechanics
According to Bernoulli’s equation for steady ideal fluid flow_______________?
A. principle of conservation of mass holds
B. velocity and pressure are inversely proportional
C. total energy is constant throughout
D. the energy is constant along a stream-line but may vary across streamlines
E. none of the above
The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?
A. moving
B. viscous
C. viscous and static
D. inviscous and moving
E. viscous and moving
The property of a fluid which enables it to resist tensile stress is known as________________?
A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity.
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately_______________?
A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm
Metacentric height is the distance between the metacentre and___________________?
A. water surface
B. center of pressure
C. center of gravity
D. center of buoyancy
E. none of the above
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is _________________?
A. 400 kg/cm2
B. 4000 kg/cm2
C. 40 x 105 kg/cm2
D. 40 x 106 kg/cm2
E. none of the above
The difference of pressure between the inside and outside of a liquid drop is________________?
A.p = Txr
B.p = T/r
C. p = T/2r
D. p = 2T/r
E. none of the above
Pitot tube is used for measurement of__________________?
A. pressure
B. flow
C. velocity
D. dsscharge
E. viscosity
Euler’s dimensionless number relates the following_______________?
A. inertial force and gravity
B. viscous force and inertial force
C. viscous force and buoyancy force
D. pressure force and inertial force
E. pressure force and viscous force
