A. resistance to shear stress is small
B. fluid pressure is zero
C. linear deformation is small
D. only normal stresses can exist
E. viscosity is nil
Related Mcqs:
- In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?
A. constant
B. variable
C. zero
D. zero under limiting conditions
E. never zero - An ideal flow of any fluid must fulfill the following____________________?
A. Newton’s law of motion
B. Newton’s law of viscosity
C. Pascal’ law
D. Continuity equation
E. Boundary layer theory - A fluid in equilibrium can’t sustain____________________?
A. tensile stress
B. compressive stress
C. shear stress
D. bending stress
E. all of the above - An ideal flow of any fluid must satisfy __________________?
A. Pascal law
B. Newton’s law of viscosity
C. boundary layer theory
D. continuity equation
E. Bernoulli’s theorem - The total energy of each particle at various places in the case of perfect incompres sible fluid flowing in continuous sream__________________?
D. keeps on increasing
B. keeps on decreasing
C. remains constant
D. may increase/decrease
E. unpredictable - According to Bernoulli’s equation for steady ideal fluid flow____________________?
A. principle of conservation of mass holds
B. velocity and pressure are inversely proportional
C. total energy is constant throughout
D. the energy is constant along a stream-line but may vary across streamlines
E. none of the above - According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to_________________?
A. the weight of the body
B. more than the weight of the body
C. less than the weight of the body
D. weight of the fluid displaced by the body
E. weight of body plus the weight of the fluid displaced hy the body - The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called_______________?
A. upthrust
B. reaction
C. buoyancy
D. metacentre
E. center of pressure - The normal stress in a fluid will be constant in all directions at a point only if__________________________?
A. it is incompressible
B. it has uniform viscosity
C. it has zero viscosity
D. it is frictionless
E. it is at rest - Fluid is a substance that___________________?
A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
E. flows
