MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fluids which do not follow the linear relationship between shear stress and rate of deformation are termed as.... fluids. |
| A. | Newtonian |
| B. | Non-Newtonian |
| C. | Dilatant |
| D. | ideal |
| Answer» C. Dilatant | |
| 2. |
The intensity of pressure at any point in a liquid at rest is the same in all directions. The above statement is known as |
| A. | Kirchhoff s law |
| B. | Pascal s law |
| C. | Either of the above |
| D. | None of the above. |
| Answer» C. Either of the above | |
| 3. |
2 148. The power transmitted through the pipe is maximum when head lost due to friction in the pipe is equal to |
| A. | (1/3) rd of the total supply head |
| B. | (1/4) th of the total supply head |
| C. | (1/5) th of the total supply head |
| D. | (1/8) th of the total supply head |
| Answer» D. (1/8) th of the total supply head | |
| 4. |
The condition for maximum transmission of power through a pipeline is that one-third of the available head must be consumed in friction. The corresponding efficiency of the pipeline is |
| A. | 33 3% |
| B. | 66 67% |
| C. | 90% |
| D. | 100%. |
| Answer» C. 90% | |
| 5. |
The ratio of power developed by the runner to the power supplied by the jet at entrance to the turbine is known as |
| A. | Hydraulic efficiency |
| B. | Mechanical efficiency |
| C. | Volumetric efficiency |
| D. | Overall efficiency. |
| Answer» B. Mechanical efficiency | |
| 6. |
Which of the following devices is used for transmitting increased or decreased torque from one shaft to another? |
| A. | Hydraulic ram |
| B. | Hydraulic coupling |
| C. | Hydraulic intensifier |
| D. | Hydraulic torque converter |
| Answer» E. | |
| 7. |
A Francis turbine is |
| A. | Inward flow reaction turbine |
| B. | Inward flow impulse turbine |
| C. | Outward flow reaction turbine |
| D. | Outward flow impulse turbine |
| E. | None of the above |
| Answer» B. Inward flow impulse turbine | |
| 8. |
If A is the area of the immersed surface, w is the specific weight of the liquid and x is the depth of horizontal surface from the liquid surface, then the total pressure P on the surface is given by |
| A. | p = wA2 x |
| B. | p = w2A x |
| C. | p = wA x |
| D. | p = wA x2 |
| Answer» D. p = wA x2 | |
| 9. |
The total-energy-line in pipe flow is a graphical representation of the Bernoulli s equation and represents the sum of velocity head, pressure head and the elevation head above: |
| A. | The top of the pipeline |
| B. | The arbitrary horizontal datum |
| C. | The centre line of pipe |
| D. | The bottom of the pipe. |
| Answer» C. The centre line of pipe | |
| 10. |
The tendency for an immersed body to be lifted up in the fluid, due to an upward force opposite to the action of gravity is known as |
| A. | Buoyancy |
| B. | Centre of buoyancy |
| C. | Buoyant force |
| D. | None of the above. |
| Answer» B. Centre of buoyancy | |
| 11. |
Submerged weight of a body is |
| A. | less than its weight in air |
| B. | equal to its weight in air |
| C. | greater than its weight in air |
| D. | greater than its weight in vacuum |
| Answer» B. equal to its weight in air | |
| 12. |
If the Reynolds number is less than 2000, the flow in a pipe is |
| A. | Laminar flow |
| B. | Turbulent flow |
| C. | Transition flow |
| D. | None of the above. |
| Answer» B. Turbulent flow | |
| 13. |
In MLT units, velocity potential is expressed as |
| A. | LT-2 |
| B. | L2T |
| C. | L2T-1 |
| D. | 2.45 |
| E. | L2T-2 |
| Answer» D. 2.45 | |
| 14. |
A....is an imaginary line within the flow so that the tangent at any point on it indicates the velocity at that point. |
| A. | Streak line |
| B. | Stream line |
| C. | Path line |
| D. | None of the above. |
| Answer» C. Path line | |
| 15. |
Which conduit entrance is expected to have least loss coeffieient? |
| A. | Circular bell mouth entrances |
| B. | Square cornered entrance |
| C. | Square bell mouth entrances |
| D. | Slightly rounded entrance |
| E. | Inward projecting entrances |
| Answer» B. Square cornered entrance | |
| 16. |
...... is a curve which gives an instantaneous picture of the location of the fluid particles which have passed through a given point. |
| A. | Path line |
| B. | Stream line |
| C. | Streak line |
| D. | None of the above. |
| Answer» D. None of the above. | |
| 17. |
The intensity of pressure p is related to specific weight w of the liquid and vertical depth h of the point by the equation |
| A. | p = wh |
| B. | h = pw |
| C. | p = wh2 |
| D. | p = wh3. |
| Answer» B. h = pw | |
| 18. |
Portion of the installed reserve kept in operable condition but not placed in service to supply the peak load is known as |
| A. | Spinning reserve |
| B. | Operating reserve |
| C. | None-spinning reserve |
| D. | Hot reserve |
| E. | Cold reserve |
| Answer» F. | |
| 19. |
The continuity equation in ideal fluid flow |
| A. | Applies to irrotational flow only |
| B. | States that the net rate of in-flow into any small volume must be zero |
| C. | States that the energy remains constant along stream line |
| D. | States that energy is constant everywhere in the fluid |
| E. | Impulses to existence of a velocity potential |
| Answer» E. Impulses to existence of a velocity potential | |
| 20. |
The boundary layer separation takes place if |
| A. | Pressure gradient is zero |
| B. | Pressure gradient is positive |
| C. | Pressure gradient is negative |
| D. | None of the above |
| E. | None of the these answers |
| Answer» C. Pressure gradient is negative | |
| 21. |
The Boundary layer on a flat plate is calld laminar boundary layer if |
| A. | Reynold No. is less than 2000 |
| B. | Reynold No. is less that 4000 |
| C. | Reynold No. is less than 5 x 105 |
| D. | None of the above |
| E. | None of the above |
| Answer» D. None of the above | |
| 22. |
The most popular generation voltage in hydro-electric power stations in India is |
| A. | 440 kV |
| B. | 220 V |
| C. | 440 V |
| D. | 6600 V |
| E. | 11000 V |
| Answer» F. | |
| 23. |
The efficiency of jet propulsion with inlet orifices at right angles to the direction of motion of ship is given by |
| A. | 2u/ (V + u) |
| B. | 2V/ (V + u) 2 |
| C. | 2Vu/ (V + u) 2 |
| D. | 2u (V-u)/V3 |
| Answer» C. 2Vu/ (V + u) 2 | |