Q.1
Stream lines and path lines always coincide in case of
Q.2
For manometer, a better liquid combination is one having
Q.3
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately
Q.4
If the surface of liquid is convex, men
Q.5
In series-pipe problems
Q.6
An ideal flow of any fluid must fulfill the following
Q.7
The pressure at the summit of a syphon is
Q.8
Center of pressure on an inclined plane is
Q.9
Which of the following velocity potentials satisfies continuity equation ?
Q.10
Capillary action is due to the
Q.11
The continuity equation is connected with
Q.12
Kinematic viscosity is dependent upon
Q.13
Froude number is significant in
Q.14
In a static fluid
Q.15
The motion of air mass in a tornado is a
Q.16
Euler’s dimensionless number relates the following
Q.17
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be
Q.18
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as
Q.19
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as
Q.20
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is
Q.21
If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will
Q.22
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
Q.23
A floating body is said to be in a state of stable equilibrium
Q.24
A body floats in stable equilibrium
Q.25
Metacentric height for small values of angle of heel is the distance between the
Q.26
The wake
Q.27
In a forced vortex, the velocity of flow everywhere within the fluid is
Q.28
The units of kinematic viscosity are
Q.29
The specific weight of water is 1000 kg/m”
Q.30
Density of water is maximum at
0 h : 0 m : 1 s