Q1-A static fluid can have :

A- Non zero normal and shear stresses

B- Positive normal stres and zero shear stress

C- Zero normal stress and non zero shear stress

D- Negative normal stress and zero shear stress

Q2-If "X" is the distance measured from the leading edge of a flat plate, then laminar boundary layer thickness varies as :

A- 1/X

B-X4/5

C-X2

D-X1/2

Q3-Cavitation in a hydraulic reaction turbine is most likely to occour at the turbine :

A-Entry

B-Exit

C-Stator exit

D-Rotor Exit

Q4-The parameters which determines the friction factor for turbulent flow in a rough pipes are :

A-Froude number and Mach number

B-Froude number and relative roughness

C-Mach number and relative roughness

D-Reynolds number and relative roughness

Q5-For a floting body,if the centre of gravity,centre of buoyancy and the metacentre, are respectivley at point G, B and M, then for stable equilibrium of the body:

A-GM > BM

B-BM > BG

C-BM < BG

D-BM = 0

Q6-A pelton wheel is an :

A- Inward flow impulse turbine

B- Axial flow impulse turbine

C- Outward flow impulse turbine

D- Inward flow reaction turbine

Q7-Bernolli"s equation is not valid within hydrodynamic boundry layer due to:

A-Viscous dissipation

B-Compressible effect

C-Tempreture drop

D-Pressure drop