MCQOPTIONS
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MCQOPTIONS
This section includes 412 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Ion exchange units are known as |
| A. | water hardeners |
| B. | water softeners |
| C. | water purifiers |
| D. | exchangers |
| Answer» C. water purifiers | |
| 2. |
What is the shape of the septic tank? |
| A. | square |
| B. | rectangle |
| C. | circular |
| D. | oval |
| Answer» C. circular | |
| 3. |
The centrifugal pump has a flow. |
| A. | variable |
| B. | uniform |
| C. | continuous |
| D. | constant |
| Answer» D. constant | |
| 4. |
The CWA made it unlawful to discharge any pollutant from a point source into navigable waters, unless a permit was obtained. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 5. |
Which type of pump is designed to handle rocks and other solids? |
| A. | trash pumps |
| B. | submersible pumps |
| C. | slurry pumps |
| D. | self-priming pumps |
| Answer» B. submersible pumps | |
| 6. |
Which reservoir is helpful in permitting the pumps or the water treatment plants to work at a uniform rate? |
| A. | storage reservoir |
| B. | detention reservoir |
| C. | multipurpose reservoir |
| D. | distribution reservoir |
| Answer» E. | |
| 7. |
The process of reducing the fluoride content from water is called |
| A. | chlorination |
| B. | fluoridation |
| C. | defluoridation |
| D. | flocculation |
| Answer» D. flocculation | |
| 8. |
The size of suspended solids lies in the range of |
| A. | 10-3 – 10-6 mm |
| B. | 103 – 106 mm |
| C. | 10-1 – 10-3 mm |
| D. | 101 – 103 mm |
| Answer» D. 101 – 103 mm | |
| 9. |
In which of the following reservoir the flood crest downstream can be better controlled and regulated properly? |
| A. | distribution reservoir |
| B. | multipurpose reservoir |
| C. | storage reservoir |
| D. | retarding reservoir |
| Answer» D. retarding reservoir | |
| 10. |
The Clean Water Act (CWA) regulates |
| A. | discharge of pollutants into the waters of the united states |
| B. | discharge of pollutants into the waters of the united kingdom |
| C. | discharge of pollutants into the air of the united states |
| D. | discharge of pollutants into the waters of india |
| Answer» B. discharge of pollutants into the waters of the united kingdom | |
| 11. |
While designing the demineralisation plant what is considered as the strong acidic cation load? |
| A. | alkaline hardness |
| B. | alkaline hardness + ema |
| C. | ema |
| D. | silica |
| Answer» C. ema | |
| 12. |
The maximum discharging capacity of a retarding reservoir should not be equal to the maximum safe carrying capacity of the channel downstream. |
| A. | true |
| B. | false |
| Answer» C. | |
| 13. |
Threshold odour number testing is preferred in hot water. |
| A. | true |
| B. | false |
| Answer» C. | |
| 14. |
Which formula is used to calculate head loss in valves? |
| A. | k2 (v/2 g) |
| B. | k (v/2 g) |
| C. | k (v2/2 g) d) k3 (v2/2 g) |
| Answer» D. | |
| 15. |
The CWA reduced the amount of pollution from |
| A. | point sources |
| B. | non-point sources |
| C. | chemicals |
| D. | mining |
| Answer» B. non-point sources | |
| 16. |
Which of the following is not a component of the plumbing drainage system? |
| A. | water closets |
| B. | taps |
| C. | vent pipes |
| D. | urinals |
| Answer» C. vent pipes | |
| 17. |
pumps produce a head and a flow by increasing the velocity of the liquid with the help of the rotating vane impeller. |
| A. | displacement pumps |
| B. | positive pumps |
| C. | centrifugal pumps |
| D. | rotating pumps |
| Answer» D. rotating pumps | |
| 18. |
What is the fire demand of the city of 1lakh population by Buston’s formula? |
| A. | 5663 |
| B. | 56630 |
| C. | 566300 |
| D. | 5663000 |
| Answer» C. 566300 | |
| 19. |
When is strong basic anion not necessary? |
| A. | silica is nil |
| B. | co2 is nil |
| C. | fluroine is nil |
| D. | sulphate is nil |
| Answer» B. co2 is nil | |
| 20. |
The discharge of regulated chemicals into surface waters is controlled by |
| A. | sara |
| B. | cercla |
| C. | npdes |
| D. | pdac |
| Answer» D. pdac | |
| 21. |
Which material is used for pipes which conduct waste? |
| A. | stainless steel |
| B. | copper |
| C. | ceramic |
| D. | plastic |
| Answer» D. plastic | |
| 22. |
Which of the following can act as a type of variation in water demand? |
| A. | monthly variation |
| B. | annual variation |
| C. | crop variation |
| D. | 10 year variation |
| Answer» B. annual variation | |
| 23. |
Calculate area of a pipe if, flow rate is 20 l/min and flow velocity is 5 cm/s. |
| A. | 66.66 cm2 |
| B. | 60 cm2 |
| C. | 62 cm2 |
| D. | 64 cm2 |
| Answer» B. 60 cm2 | |
| 24. |
To prevent the product flow in the wrong direction which of the following valve is used? |
| A. | seat valve |
| B. | butterfly valve |
| C. | seat valve and butterfly valve |
| D. | check valve |
| Answer» E. | |
| 25. |
is used to clean blockage in the line. |
| A. | lateral chamber |
| B. | main chamber |
| C. | inspection chamber |
| D. | sewer chamber |
| Answer» D. sewer chamber | |
| 26. |
What is the permitted concentration of arsenic in drinking water? |
| A. | 10 g/l |
| B. | 20 g/l |
| C. | 30 g/l |
| D. | 40 g/l |
| Answer» B. 20 g/l | |
| 27. |
Light gauge copper tubes are used for general purpose work where the pressure is not more than 0.15 N/mm2. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 28. |
In which unit operation, gases are released or absorbed in the water? |
| A. | gas transfer |
| B. | ion transfer |
| C. | solute stabilization |
| D. | solids transfer |
| Answer» B. ion transfer | |
| 29. |
What is the maximum allowable flow for backwash? |
| A. | 20 m/hr |
| B. | 45 m/hr |
| C. | 60 m/hr |
| D. | 80 m/hr |
| Answer» D. 80 m/hr | |
| 30. |
The average consumption of water required in factories in lpcd is |
| A. | 10-15 |
| B. | 20-30 |
| C. | 30-45 |
| D. | 70-80 |
| Answer» D. 70-80 | |
| 31. |
Based on the type of casing, the centrifugal pump is divided into types. |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 32. |
The maximum permissible limit for suspended solids is |
| A. | 10 mg/l |
| B. | 20 mg/l |
| C. | 30 mg/l |
| D. | 40 mg/l |
| Answer» D. 40 mg/l | |
| 33. |
The design period of storage reservoir can be given as |
| A. | 50 yr |
| B. | 20 yr |
| C. | 30 yr |
| D. | 10 yr |
| Answer» B. 20 yr | |
| 34. |
While considering the design period, which must be given more priority? |
| A. | area of land |
| B. | population |
| C. | usage of water |
| D. | arrangement of pipes |
| Answer» C. usage of water | |
| 35. |
Which type of water is generally used in the treatment of water? |
| A. | chlorinated water |
| B. | treated water |
| C. | raw water |
| D. | sulphated water |
| Answer» D. sulphated water | |
| 36. |
The maximum amount of pollution that each waterway could absorb is known as |
| A. | tmdl |
| B. | tsml |
| C. | tdsml |
| D. | tds |
| Answer» B. tsml | |
| 37. |
In case along with silica, there is high content in sulphide and chloride what should be used? |
| A. | wba |
| B. | wba and sba |
| C. | sba |
| D. | sba,wba and wac |
| Answer» C. sba | |
| 38. |
should not be placed near water body. |
| A. | power generator |
| B. | soak pit |
| C. | pump stations |
| D. | houses |
| Answer» C. pump stations | |
| 39. |
End suction pumps are the common type of pumps. |
| A. | drum pumps |
| B. | centrifugal pumps |
| C. | positive displacement pumps |
| D. | grinder pumps |
| Answer» C. positive displacement pumps | |
| 40. |
While designing the demineralisation plant what is considered as the strong basic anion load? |
| A. | alkaline hardness |
| B. | alkaline hardness + ema+co2 |
| C. | ema+silica |
| D. | silica+co2+ alkalinity+ema |
| Answer» E. | |
| 41. |
While designing the demineralisation plant what is considered as the weak basic anion load? |
| A. | alkaline hardness |
| B. | alkaline hardness + ema |
| C. | ema |
| D. | silica |
| Answer» D. silica | |
| 42. |
Organic contaminants are removed from the water by the process of |
| A. | water softening |
| B. | demineralization |
| C. | absorption |
| D. | adsorption |
| Answer» E. | |
| 43. |
Grease should not be allowed to enter the normal drainage system. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 44. |
What is the desirable bed depth for AFM filtration? |
| A. | 1000 mm |
| B. | 1200 mm |
| C. | 1500 mm |
| D. | 1800 mm |
| Answer» C. 1500 mm | |
| 45. |
Why are cryogenic pumps used? |
| A. | boost pressure |
| B. | handle low temperature liquids |
| C. | handle high temperature liquids |
| D. | pump small quantities of liquids |
| Answer» C. handle high temperature liquids | |
| 46. |
Which among the following is shut-off and change over valve? |
| A. | seat valve |
| B. | butterfly valve |
| C. | seat valve and butterfly valve |
| D. | bend |
| Answer» D. bend | |
| 47. |
Section of CWA regulates discharges of hazardous substances. |
| A. | 311(b)(2)(b) |
| B. | 311(b)(2)(a) |
| C. | 312(b)(2)(a) |
| D. | 311(b)(1)(a) |
| Answer» C. 312(b)(2)(a) | |
| 48. |
Flocculation of iron from water by the addition of lime is an example of which of the following process? |
| A. | chemical precipitation |
| B. | chemical coagulation |
| C. | ion exchange |
| D. | adsorption |
| Answer» B. chemical coagulation | |
| 49. |
The hourly demand rate is constant throughout the day. |
| A. | true |
| B. | false |
| Answer» C. | |
| 50. |
When the hardness and alkalinity are around 30% what should be used? |
| A. | sac |
| B. | wac |
| C. | wac, sac |
| D. | wac, sac, wba |
| Answer» D. wac, sac, wba | |