The viscosity of a gas_______________?

Related Mcqs:

In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is_________________?

A. 22.5 m/sec B. 33 m/sec C. 40 m/sec D. 90 m/sec...

Which of the following statements is correct ?

A. Lower critical Reynolds number is of no practical significance in pipe flow problems. B. Upper critical Reynolds number is significant in pipe flow problems. C. Lower critical Reynolds number has the value 2000 in pipe flow D. Upper critical Reynolds number is the number at which turbulent flow changes to laminar flow...

Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is________________?

A. less than d B. between d and 1.5 d C. between 1.5 d and 2d D. greater than 2d...

The pitot tube is used to measure________________?

A. velocity at stagnation point B. stagnation pressure C. static pressure D. dynamic pressure...

An ideal fluid is_______________?

A. one which obeys Newton’s law of viscosity B. frictionless and incompressible C. very viscous D. frictionless and compressible...