Test: Fluid Mechanics- 1 - Mechanical Engineering MCQ

With increase in temperature the viscosity of gases and liquids respectively : -

Below is shown a graph.

The line marked 'A' represents

If P = Pressure r = density, then compressibility can be defined as,

A cold chisel is made of

Bourdon gauge is used to measure

pressure at a place was measured to be 1000 mm of mercury. The pressure in terms of height of water will be :-

In the shown diagram velocity V will be

A square plate of side 10 cm is immersed vertically in water with its top edge 5 cm below water surface. The total pressure force on the surface will be

If the plate in above question is moved down deeper into water the center of pressure will

A completely submerged body will be in stable equilibrium if : 

B → Center of Buoyancy
G → Center of gravity
M → Metacenter..

A body of density 600 kg/m³ floats in a liquid of density 1000 kg/m³. The percentage of volume immersed in water is

Atmospheric pressure is equal to

Time period of transverse oscillation of a floating body is given as

K_G → least radins of gyration.
 Metacentric height
 Metacentric radius

Langrangian method of fluid study is also:-

For steady flow which of the following lines becomes identical
1. streamline
2. streak line
3. path line
4. Time line

The velocity at a point is given as The equation of stream line is

When a fluid flows in a curved path without any external force the fluid motion is called

The speed factor (speed ratio) of a Pelton turbine for its efficient operation lies in the range    

A liquid of specific gravity 0.7 flows with a velocity of 5 m/s. Its velocity head is near to.

Bernoulis equation refers to conservation of –

Which of the following can be used to measure velocity in open channel flow.

Spyghmanometer is a device used to measure