Hydraulics and Irrigation Engineering MCQs (Diploma Civil 3rd Year)

Q1. At standard temperature and pressure the volume per mass is called

1. A. Specific weight
2. B. Specific volume
3. C. Specific gravity
4. D. Density

Q2. Atmospheric pressure is measured by

1. A. Barometer
2. B. Piezometer
3. C. Manometer
4. D. All of these

Q3. The study of pressure exerted by liquids at rest is termed as

1. A. Hydrology
2. B. Hydrostatics
3. C. Hydrostation
4. D. All of these

Q4. Centre of gravity of the volume of liquid displaced is called

1. A. Centroid
2. B. Centre of gravity
3. C. Centre of buoyancy
4. D. Metacentre

Q5. The quantity of a liquid flowing per second through a pipe is termed as

1. A. Acceleration
2. B. Discharge
3. C. Velocity
4. D. All of these

Q6. Study of flowing liquids and forces causing their motion is called

1. A. Hydraulics
2. B. Hydrodynamics
3. C. Hydrology
4. D. Hydrokinematics

Q7. A long pipe is considered whose length is more than ___ times its diameter.

1. A. 100
2. B. 1000
3. C. 2000
4. D. 10

Q8. The coefficient of discharge is the ratio between actual discharge and ___ discharge.

1. A. Maximum
2. B. Theoretical
3. C. Minimum
4. D. All of these

Q9. An opening in the side of a tank with the upstream liquid level below the top edge of the opening is called

1. A. Weir
2. B. Mouth piece
3. C. Notch
4. D. Orifice

Q10. A low level wall made across the flow of water in a channel is called

1. A. Barrage
2. B. Head work
3. C. Weir
4. D. Dam

Q11. In the open channel, water flows under

1. A. Friction
2. B. Magnetic force
3. C. Atmospheric pressure
4. D. Gauge pressure

Q12. The art of applying water to agricultural land by artificial means is termed as

1. A. Cultivation
2. B. Agriculture
3. C. Irrigation
4. D. All of these

Q13. Irrigation system in Pakistan is such largest system in the world.

1. A. 3rd
2. B. 2nd
3. C. 4th
4. D. 1st

Q14. The period in days during which irrigation is supplied to a crop is

1. A. Base period
2. B. Core period
3. C. Crop period
4. D. Wet period

Q15. An irrigation system mostly used in Pakistan

1. A. Surface irrigation
2. B. Sprinkling irrigation
3. C. Sub-surface irrigation
4. D. All of these

Q16. When discharge of rivers is less than the requirement of crops for most of the year while it is in excess for a short period, this system of irrigation is suitable.

1. A. Storage
2. B. Flow irrigation
3. C. Surface irrigation
4. D. Sub-surface

Q17. A dam constructed with the material locally available near the dam site is termed as

1. A. Small dam
2. B. Low level dam
3. C. Local dam
4. D. Earthen dam

Q18. A wall built across the full width of a river to raise water level is called

1. A. Barrage
2. B. Weir
3. C. Dam
4. D. a and b

Q19. A regulator constructed at the beginning of a canal or a distributary is termed as

1. A. Cross regulator
2. B. Head regulator
3. C. Upper regulator
4. D. All of these

Q20. Permanent canals which get continuous supplies from rivers throughout the year are called

1. A. Links canal
2. B. Non-perennial
3. C. Perennial
4. D. Inundation

Q21. Drop of canal bed at suitable places is called

1. A. Fall
2. B. Bed drop
3. C. Draw down
4. D. All of these

Q22. A structure constructed at a suitable place for safe disposal of drainage water across the channel is called

1. A. Cross regulator
2. B. Cross drainage works
3. C. Regulation works

Q23. Following works are included in maintenance of canals.

1. A. Inside silting
2. B. Silt removal
3. C. Formation of berm
4. D. All of these

Q24. A structure at the head of a water course is termed as

1. A. Outlet
2. B. Head regulator
3. C. Inlet
4. D. All of these

Q25. Land is termed as water logged if water table lies at such depth from ground surface.

1. A. 3 m
2. B. 1.5 m
3. C. 1.0 m
4. D. 0.5 m