The SI unit of kinematic viscosity is:
For a Newtonian fluid:
What is the unit of dynamic viscosity of a fluid in termed 'poise' equivalent to?
Decrease in temperature, in general, results:
Which Property of mercury is the main reason for use in barometers?
In a flow field, the streamlines and equipotential lines are:
Existence of velocity potential implies that:
Fluid statics deals with:
What is the vertical component of pressure force on submerged curved surface equal to?
Hydrostatic law of pressure is given as:
Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5m2/s. Its kinematic viscosity at 70°C will be vary approximately:
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of “g” is 9.81m/s2. The absolute pressure in the vessel is:
The capillary rise at 200C in clean glass tube of 1 mm diameter containing water is approximately:
A circular plate 1.5 m diameter is submerged in water with its greatest and least depths below the surface being 2 m and 0.75 m respectively. What is the total pressure (approximately) on one face of the plate?
If B is the center of buoyancy, G is the centre of gravity and M is the Metacentre of a floating body, the body will be in stable equilibrium if:
The depth of centre of pressure for a rectangular lamina immersed vertically in water up to height ‘h’ is given by:
Match List-I (Physical properties of fluid) with List-II (Dimensions/Definitions) and select the correct answer:
|
List-I () |
List-II () |
|
A. Absolute viscosity |
1. du/dy is constant |
|
B. Kinematic viscosity |
2. Newton per metre |
|
C. Newtonian fluid |
3. Poise |
|
D. Surface tension |
4. Stress/Strain is constant |
|
|
5. Stokes |
Stability of a floating body can be improved by which of the following?
1. Making its width large
2. Making the draft small
3. Keeping the centre of mass low
4. Reducing its density
Select the correct answer using the code given below:
An open rectangular box of base 2m × 2m contains a liquid of specific gravity 0.80 up to a height of 2.5m. If the box is imparted with a vertically upward acceleration of 4.9 m/s2. what will be the pressure on the base of the tank?
Two flows are specified as
(A) u = y, v = - (3/2) x (B) u = xy2, v = x2y
Which one of the following can be concluded?
A steady, incompressible flow is given by u = 2x2 + y2 and v = - 4xy. What is the convective acceleration along x-direction at point (1, 2)?
The shear stress developed in lubricating oil of viscosity 9.81poise, filled between two parallel plates 1 cm apart and moving with relative velocity of 2 m/s is:
The pressure gauges G1 and G2 installed on the system show pressures of PG1 = 5.00 bar and PG2 = 1.00 bar. The value of unknown pressure P is?
(Atmospheric pressure 1.01 bar)
A cylindrical gate is holding water on one side as shown in the given figure. The resultant vertical component of force of water per meter width of gate will be:
A barge 30m long and 10m wide has a draft of 3m when flowing with its sides in vertical position. If its centre of gravity is 2.5m above the bottom, the nearest value of metacentric height is:
