A. Velocity of liquids
B. Temperature of liquids
C. Velocity of gases
D. Pressure of liquids
Related Mcqs:
- The resistance wire used in a hot wire anemometer for conducting electrical current is made of__________________?
A. Copper
B. Tungsten
C. Chromium
D. Aluminium - Vane anemometer __________________?
A. Is an area meter
B. Is a variable head meter
C. Rotates an element at a speed determined by the velocity of the fluid in which the meter is
immersed
D. None of these - Existence of boundary layer in fluid flow is because of the_________________?
A. Surface tension
B. Fluid density
C. Fluid viscosity
D. Gravity forces - For steady ideal fluid flow, the Bernoulli’s equation states that the_________________?
A. Velocity is constant along a stream line
B. Energy is constant throughout the fluid
C. Energy is constant along a stream line, but may vary across stream lines
D. None of these - The frictional resistance in laminar flow does not depend on the_________________?
A. Area of surface in contact
B. Flow velocity
C. Fluid temperature
D. Pressure of flow - Pressure drag does not depend upon the_________________?
A. Roughness of surface of the body
B. Pressure of main flow only
C. Length of the body in flow direction
D. All A., B. and C. - Momentum transfer in laminar flow of fluids results due to the_________________?
A. Viscosity
B. Density
C. Velocity gradient
D. None of these - The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?
A. Discharge
B. Suction
C. Suction minus vapor pressure of the liquid at suction temperature
D. Discharge minus vapor pressure of the liquid at the discharge temperature - Boundary layer separation is caused by the_________________?
A. Reduction of pressure to vapour pressure
B. Boundary layer thickness reducing to zero
C. Adverse pressure gradient
D. Reduction of pressure gradient to zero - Euler’s equation of motion states, that at every point, the_________________?
A. Fluid momentum is constant
B. Force per unit mass equals acceleration
C. Rate of mass outflow is equal to the rate of mass inflow
D. None of these
