Related Questions

For a particle settling in water at its terminal settling velocity, which of the following is true?
A Buoyancy = weight + drag
B Weight = buoyancy + drag
C Drag = buoyancy + weight
D Drag = weight
For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is
A More
B Less
C Equal
D More or less, depending on the type of particle
Two particles are called to be equal settling, if they are having the same.
A Size
B Specific gravity
C Terminal velocities in the same fluid & in the same field of force
D None of these
Drag co-efficient in hindered settling is __________ that in free settling.
A Less than
B Equal to
C Not necessarily greater than
D Always greater than
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
The gypsys are a tribe of strange people. They do not have any fixed home but wander about from place to place and live in tents. they were originally natives of India. But as they reached England from Egypt ,the English took them from Egyptians. this is why they came to be called gypsys. they were beloved to possess strange powers. they could tell your fortune by reading the palm of your hand. it was thought they stole little children to train them in their way of life. whenever a child got lost it was thought that it has been carried away by gypsys so they were arrested and sent for trial. but this attitude towards the Gypsy has gradually changed.The gypsies are people who ---
A have a settled way of life
B came originally from Egypt to England
C are always on the move
D steal children to train them in the way of life
The terminal velocity of a small sphere settling in a viscous fluid varies as the
A First power of its dimeter
B Inverse of the fluid viscosity
C Inverse square of the diameter
D Square of the difference in specific weights of solid & fluid
The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as
A One dimensional flow
B Uniform flow
C Steady flow
D Turbulent flow
Solid particles separation based on the difference in their flow velocities through fluids is termed as the
A Clarification
B Classification
C Elutriation
D Sedimentation
In hindered settling, the particles are
A Placed farther from the wall
B Not affected by other particles and the wall
C Near each other
D None of these

Next steps