# SSC JE Civil Engineering Preliminary Exam in January 2018 | Practice test Day – 52

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1. The stress-strain relation of the Newtonian fluid is
2. Barometer is used to measure
3. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as
4. The flow of water through the hole in the bottom of a wash basin is an example of
5. The hydraulic mean depth for a circular pipe of diameter (d) is
6. The coefficient of discharge in case of internal mouthpiece is __________ that of external  mouthpiece.
7. A flow whose streamline is represented by a curve, is called
8. The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.
9. A notch is used to measure __________ of liquids.
10. A flow in which the quantity of liquid flowing per second is not constant, is called
11. The specific gravity of water is taken as
12. The weight per unit volume of a liquid at a standard temperature and pressure is called
13. The unit of surface tension is
14. The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head  lost due to friction in the pipe)
15. A flow in which the viscosity of fluid is dominating over the inertia force is called
16. The coefficient of venturi-flume, generally, lies between
17. The units of dynamic or absolute viscosity are
18. The viscosity of a liquid __________ its rate of flow through a hole in a vessel.
19. An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch,
20. The value of coefficient of discharge is __________ the value of coefficient of velocity.
21. The hydraulic mean depth or the hydraulic radius is the ratio of
22. If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
23. A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.
24. The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by
25. Euler's number is the ratio of __________ force to pressure force.

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