MCQOPTIONS
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MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Strength Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The dosage of ozone is about ________ ppm residual ozone. |
| A. | 2 to 3 ppm |
| B. | 2 to 4 ppm |
| C. | 1 to 5 ppm |
| D. | Zero |
| Answer» B. 2 to 4 ppm | |
| 2. |
What is the uniformity coefficient of sand used in the rapid sand filter? |
| A. | 1.5 |
| B. | 1.35 |
| C. | 1.75 |
| D. | 1.6 |
| Answer» D. 1.6 | |
| 3. |
The efficiency of slow sand filter is about ___________ |
| A. | 99 % |
| B. | 95 % |
| C. | 85 % |
| D. | 90 % |
| Answer» B. 95 % | |
| 4. |
Cleaning period of slow sand filter is taken as __________ |
| A. | 1 to 3 weeks |
| B. | 1 to 3 days |
| C. | 1 to 3 months |
| D. | 1 to 2 hours |
| Answer» D. 1 to 2 hours | |
| 5. |
The sand used for filtration should not lose weight more than ________ when placed in Hcl for 24 hours. |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» B. 10 % | |
| 6. |
The organic impurities in the water from a layer on the top of a filtering media are called _______ |
| A. | Filter layer |
| B. | Permeable layer |
| C. | Impermeable layer |
| D. | Dirty skin |
| Answer» E. | |
| 7. |
Column is a tension member. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
CLEANING_PERIOD_OF_SLOW_SAND_FILTER_IS_TAKEN_AS___________?$ |
| A. | 1 to 3 weeks |
| B. | 1 to 3 days |
| C. | 1 to 3 months |
| D. | 1 to 2 hours |
| Answer» D. 1 to 2 hours | |
| 9. |
What is the uniformity coefficient of sand used in rapid sand filter?$ |
| A. | 1.5 |
| B. | 1.35 |
| C. | 1.75 |
| D. | 1.6 |
| Answer» D. 1.6 | |
| 10. |
The_efficiency_of_slow_sand_filter_is_about____________$ |
| A. | 99 % |
| B. | 95 % |
| C. | 85 % |
| D. | 90 % |
| Answer» B. 95 % | |
| 11. |
Which of the following is a control measure of removal of colour, taste and order? |
| A. | Ozone treatment |
| B. | Silver treatment |
| C. | Copper sulphate treatment |
| D. | Use of chloramines |
| Answer» D. Use of chloramines | |
| 12. |
Aeration is effective in removing of _________ odours. |
| A. | 60 % |
| B. | 75 % |
| C. | 30 % |
| D. | 40 |
| Answer» C. 30 % | |
| 13. |
Which of the following process is also known as Ion exchange process? |
| A. | Lime soda process |
| B. | Base exchange process |
| C. | Demineralization process |
| D. | Cation exchange process |
| Answer» B. Base exchange process | |
| 14. |
The_dosage_of_ozone_is_about_________ppm_residual_ozone. |
| A. | 2 to 3 ppm |
| B. | 2 to 4 ppm |
| C. | 1 to 5 ppm |
| D. | Zero |
| Answer» B. 2 to 4 ppm | |
| 15. |
The sand used for filtration should not lose weight more than ________ when placed in Hcl for 24 hours? |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» B. 10 % | |
| 16. |
The rate of filtration in slow sand filter is ___________ |
| A. | 100 to 150 lit/hr/m<sup>2</sup> |
| B. | 150 to 200 lit/hr/m<sup>2</sup> |
| C. | 250 to 350 lit/hr/m<sup>2</sup> |
| D. | 100 to 200 lit/hr/m<sup>2</sup> |
| Answer» E. | |
| 17. |
The organic impurities in water from a layer on the top of a filtering media is called _______ |
| A. | Filter layer |
| B. | Permeable layer |
| C. | Impermeable layer |
| D. | Dirty skin |
| Answer» E. | |
| 18. |
The process of removing chlorine from water is known as ____________ |
| A. | De chlorination |
| B. | Re chlorination |
| C. | Post chlorination |
| D. | Pre chlorination |
| Answer» B. Re chlorination | |
| 19. |
A built up rolled steel section carrying compressive force is called ___________ |
| A. | Post |
| B. | Pillar |
| C. | Strut |
| D. | Stanchion |
| Answer» E. | |
| 20. |
The inclined member carrying compressive loads is __________ |
| A. | Post |
| B. | Stanchion |
| C. | Strut |
| D. | Column |
| Answer» D. Column | |
| 21. |
__________ is a vertical member subjected to direct compressive force. |
| A. | Strut |
| B. | Beam |
| C. | Column |
| D. | Post |
| Answer» D. Post | |
| 22. |
Column is a tension member? |
| A. | True |
| B. | False |
| Answer» C. | |