## For pipes, turbulent flow occurs when Reynolds number is_________________?

A. less than 2000
B. between 2000 and 4000
C. more than 4000
D. less than 4000
E. none of the above

## 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.

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

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

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