1. The specific gravity of water is taken as
2. A notch is, usually, made of a metallic plate.
3. The property of a liquid which enables it to resist tensile stress is called its surface tension.
4. The coefficient of venturifiume, generally, lies between
5. A pitot tube is used to measure the
6. In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.
7. Venturimeter is used to
8. The force present in a moving liquid is
9. A channel is said to be of most economical cross-section, if
10. The magnitude of water hammer depends upon the
11. The total head of a liquid particle in motion is equal to
12. The top of the weir over which the water flows is known as
13. The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.
14. An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.
15. A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called
16. The dynamic viscosity of gases __________ with rise in temperature.
17. The reciprocal of Euler's number is called Newton number.
18. A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
19. The most efficient section of a channel is
20. The velocity of the liquid flowing through the divergent portion of a venturimeter
Fluid Mechanics MCQ 4
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