Water Resources Engineering MCQ

Q1. Which of the following is a component of water cycle?

Correct Answer: D

Evaporation, runoff, and precipitation are key water cycle components.

Q2. The term watershed refers to?

Correct Answer: A

Watershed is the land area collect water draining into a water body.

Q3. What does the term β€œrunoff” mean?

Correct Answer: A

Runoff is water flowing on the surface after rain.

Q4. Percolation in soil refers to?

Correct Answer: A

Percolation feeds groundwater.

Q5. The velocity of river flow depends on?

Correct Answer: A

Water velocity depends on slope and roughness.

Q6. A hydrograph shows?

Correct Answer: A

Hydrographs plot flow changes over time.

Q7. Flood frequency analysis helps in?

Correct Answer: A

Flood frequency guides design against floods.

Q8. Bankfull discharge means?

Correct Answer: A

Bankfull is stream flow at bank capacity.

Q9. What is the purpose of a weir?

Correct Answer: A

Weirs help measure and control flow.

Q10. Aquifers are:

Correct Answer: A

Aquifers are underground water reservoirs.

Q11. The term β€œspecific yield” refers to?

Correct Answer: A

Specific yield relates to drainable water.

Q12. Evapotranspiration includes:

Correct Answer: A

It accounts for total water loss to atmosphere.

Q13. Baseflow in rivers is?

Correct Answer: A

Baseflow sustains river flows.

Q14. If rainfall intensity exceeds infiltration rate, what occurs?

Correct Answer: A

Excess water causes runoff.

Q15. Hydraulic gradient is:

Correct Answer: A

Hydraulic gradient drives flow in porous media.

Q16. Flood control reservoirs reduce flood by:

Correct Answer: A

Reservoirs moderate flood peaks.

Q17. A rain gauge measures?

Correct Answer: A

Rain gauges record rainfall.

Q18. Which of the following affects infiltration?

Correct Answer: A

Infiltration depends on soil and moisture.

Q19. Groundwater recharge happens mainly through?

Correct Answer: A

Recharge occurs as water percolates underground.

Q20. The design flood in hydraulic engineering is?

Correct Answer: A

Design flood determines hydraulic structures sizes.

Q21. Water harvesting refers to:

Correct Answer: A

Rainwater capture for later use.

Q22. Discharge per unit width of a channel is called?

Correct Answer: A

Unit discharge is flow intensity per width.

Q23. Which soil has highest infiltration rate?

Correct Answer: A

Sand has large particles and pores.

Q24. Water table fluctuations are caused by?

Correct Answer: A

Water table changes with recharge and extraction.

Q25. Curve number method is used for?

Correct Answer: A

Curve number predicts runoff volume.

Q26. What is the role of a spillway?

Correct Answer: A

Spillways prevent dam overflow.

Q27. Channel roughness in open channel hydraulics is represented by?

Correct Answer: A

Manning’s roughness coefficient measures friction.

Q28. Hydrostatic pressure increases with?

Correct Answer: A

Pressure increases linearly with depth.

Q29. Which is considered a renewable water resource?

Correct Answer: A

Rainfall replenishes water supplies.

Q30. Capillary fringe in soil is:

Correct Answer: A

Water rises above water table by capillary forces.

Q31. Which instrument measures flow velocity in streams?

Correct Answer: A

Current meters measure water velocity.

Q32. What does Froude number indicate?

Correct Answer: A

Froude number discriminates flow types.

Q33. The sediment transport in rivers occurs mainly due to?

Correct Answer: A

Velocity drives sediment movement.

Q34. Drainage basin is?

Correct Answer: A

Drainage basin collects surface water.

Q35. Sustainable water resource management includes?

Correct Answer: A

Sustainability balances use and renewal.

Q36. The maximum discharge in hydrograph is called?

Correct Answer: A

Peak discharge represents flooding intensity.

Q37. Septic tank’s primary function is?

Correct Answer: A

Septic tanks treat waste onsite.

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