75 Hydraulics McQ Chapter Wise Online Test of 25 Question #6 Hydraulics McQ Chapter Wise McQ online Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. The sum of potential head, pressure head and kinetic head at all point in a fluid in motion is constant A. only for uniform flow B. only for steady flow C. for compressible and or incompressible flow D. for steady continuous flow of a frictionless incompressible flow 2 / 25 2. In the most general form of Bernoulli’s equation P/w + v² /2g + Z = constant, each term represents A. energy per unit mass B. energy per unit weight C. energy per unit volume D. none of above 3 / 25 3. Flow of fluid in a pipe takes place from A. higher level to lower level B. higher pressure to lower pressure C. higher energy to lower energy D. none of above 4 / 25 4. If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be A. from reservoir A to reservoirs B and C B. from reservoir B to reservoirs C and A C. from reservoir C to reservoirs A and B D. unpredictable 5 / 25 5. The Euler’s equation for steady flow of an ideal fluid along a stream line is based on Newton’s A. First law of force B. Second law of motion C. Third law of momentum D. Law of friction 6 / 25 6. Bernoulli’s equation assumes that A. fluid is non-viscous B. fluid is homogeneous C. flow is steady D. all the above 7 / 25 7. Bernoulli’s theorem has been derived under the assumption that no external force acts on the liquid except A. Atmospheric pressure B. Force due to gravity C. Wind pressure D. None of these 8 / 25 8. Euler’s equation of motion can be integrated when it is assumed that A. the continuity equation is satisfied B. the fluid is incompressible C. a velocity potential exists and the density is constant D. the flow is rotational and incompressible 9 / 25 9. Bernoulli’s equation is applied to A. Venturimeter B. Orifice meter C. Pitot tube D. All of these 10 / 25 10. The imaginary line joining each head of water is called A. hydraulic gradient line B. residual line C. loss of gradient line D. none of above 11 / 25 11. In open channel flow A. the energy grade line coincides with the free Surface B. hydraulic grade lines coincide C. the hydraulic grade line can never rise D. the hydraulic grade line and free surface Coincide 12 / 25 12. Hydraulic grade line A. remains above the centre line of conduit B. remains below the centre line of conduit C. remains parallel to the centre line of conduit D. may be above or below the centre line of conduit 13 / 25 13. The hydraulic grade line is A. always above the energy grade line B. the velocity head below the energy grade line C. always above the closed conduit D. always slopping downward in the direction of flow 14 / 25 14. In a pipeline the hydraulic grade line is above the pipe centre line in the longitudinal section at a point A and below the pipe centre line at another point B. From this it can be inferred that A. negative pressure prevails at A and positive pressure prevails at B B. positive pressure prevails at A and negative pressure prevails at B C. positive pressure prevails at both A and B D. negative pressure prevails at both A and B 15 / 25 15. The total energy line lies over the hydraulic gradient line by an amount equal to A. velocity head B. pressure head C. Friction head D. Datum head 16 / 25 16. The hydraulic grade line is A. always above centre line of pipe B. never above energy grade line C. always sloping downward in the direction of flow D. all of the above 17 / 25 17. Hydraulic grade line represents the sum of A. pressure head, kinetic head and datum head B. pressure head and kinetic head C. pressure head and datum head D. kinetic head and datum head 18 / 25 18. The hydraulic grade line slopes down along the direction of flow because of A. elevation down B. energy lost due to friction C. loss of pressure D. all of above 19 / 25 19. The hydraulic grade line is A. always above the energy grade line B. the velocity head below the energy grade line C. always above the closed grade line D. always sloping downward in the direction of flow 20 / 25 20. In pipe flow, the piezometric line joining the pressure head in the beginning with the pressure head at the end is called A. Hydraulic Gradient Line B. Total energy line C. Affux curve D. Conjugate depth 21 / 25 21. The discharge through a pipe with cross sectional area ‘A’ and velocity of flow ‘V’ is calculated as A. A*V B. A/V C. (A*V)² D. none of above 22 / 25 22. Av between two stream lines represents A. velocity B. discharge C. head D. pressure 23 / 25 23. Velocity of flow may be determined using A. division of discharge to area of flow B. product of area and discharge divided by 100 C. product of wetted perimeter and hydraulic mean radius D. all of above 24 / 25 24. Notch is a device used to measure A. rate of flow through pipes B. rate of flow through small channels C. velocity through pipe D. velocity through small channel 25 / 25 25. In a tank or channel notch is provided measure A. Velocity B. Pressure C. Discharge D. static energy Your score is The average score is 43% 0% Restart quiz Exit civil engineerhydraulics mcqmcq civilmock testnecpscupsc
