Fluid Mechanics Placement Session Quiz

What is fluid mechanics?

• Study of fluid behaviour at rest

• Study of fluid behaviour in motion

• Study of fluid behaviour at rest and in motion

• Study of fluid behaviour at rest and in motion

If a person studies about a fluid which is at rest, what will you call his domain of study?

• Fluid Kinematics

• Fluid Dynamics

• Fluid Mechanics

• Fluid Statics

When is a fluid called turbulent?

• High viscosity of fluid

• Reynolds number is greater than 4000

• Reynolds number is less than 2000

• The density of the fluid is low

One litre of water occupies a volume of

• 100 cm³

• 250 cm³

• 500 cm³

• 1000 cm³

The kinematic viscosity is the

• ratio of absolute viscosity to the density of the liquid
  

• ratio of density of the liquid to the absolute viscosity

• product of absolute viscosity and density of the liquid

• product of absolute viscosity and mass of the liquid

When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water.

• True

• False

According to equation of continuity,

• w₁a₁ = w₂a₂

• w₁v₁ = w₂v₂

• a₁v₁ = a₂v₂

• a₁/v₁ = a₂/v₂

In order to measure the flow with a venturimeter, it is installed in

• 
  horizontal line

• 
  inclined line with flow upwards

• 
  inclined line with flow downwards

• any direction and in any location

In a venturimeter, the velocity of liquid at throat is __________ than at inlet.

• higher

• lower

The pressure less than atmospheric pressure is known as

• 
  suction pressure

• vacuum pressure

• negative gauge pressure

• all of these