McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 301. |
In dry feeding type of coagulants, the dose of coagulant is controlled by |
| A. | scrapers |
| B. | worm wheel |
| C. | paddles |
| D. | none of these |
| Answer» B. worm wheel | |
| 302. |
The open wells or dug wells are also known as |
| A. | shallow wells |
| B. | draw wells |
| C. | percolation wells |
| D. | all of these |
| Answer» D. all of these | |
| 303. |
The maximum permissible quantity of lead in water for domestic supplies is |
| A. | 0.01 ppm |
| B. | 0.05 ppm |
| C. | 0.50 ppm |
| D. | 1 ppm |
| Answer» B. 0.05 ppm | |
| 304. |
The ideal method of disinfection of swimming pool water is by |
| A. | chlorination |
| B. | lime treatment |
| C. | ozonisation |
| D. | ultra-violet rays |
| Answer» C. ozonisation | |
| 305. |
A pipe sunk into the ground to tap the underground water is called |
| A. | open well |
| B. | tube well |
| C. | artesian well |
| D. | infiltration well |
| Answer» B. tube well | |
| 306. |
The method adopted for removing, bushes branches, debries etc. from water is known as |
| A. | sedimentation |
| B. | coagulation |
| C. | screening |
| D. | filteration |
| Answer» C. screening | |
| 307. |
The water carriage sewage system removes |
| A. | domestic sewage |
| B. | industrial sewage |
| C. | storm sewage |
| D. | all of these |
| Answer» D. all of these | |
| 308. |
Colloidal impurities if associated with organic matter having bacterias becomes the chief source of |
| A. | hardness |
| B. | epidemic |
| C. | alkalinity |
| D. | bad taste |
| Answer» B. epidemic | |
| 309. |
The quantity of storm water (Q) in liter per second is given by Q = CA3/4. This formula is called |
| A. | Fanning's formula |
| B. | Ryve's formula |
| C. | Dicken's formula |
| D. | Inglis formula |
| Answer» C. Dicken's formula | |
| 310. |
The leakage of sewage from the sewer into the soil surrounding the water is called ex-filtration. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 311. |
Which of the following statement is correct? |
| A. | The sub-surface sources are not affected by draught. |
| B. | Infiltration galleries are most suitable for increasing the surface source supply, in dry season. |
| C. | The rate at which water percolates into well under safe maximum critical depression head is called yield of well. |
| D. | all of the above |
| Answer» D. all of the above | |
| 312. |
The percentage ratio of the oxygen available in sewage to the oxygen required to satisfy one stage of bio-chemical oxygen demand (B.O.D.) is termed as |
| A. | chemical oxygen demand |
| B. | oxygen consumed |
| C. | relative stability |
| D. | bio-oxygen demand |
| Answer» C. relative stability | |
| 313. |
The continuous flow of water may be expected from |
| A. | surface springs |
| B. | artesian springs |
| C. | gravity springs |
| D. | all of these |
| Answer» B. artesian springs | |
| 314. |
The void spaces in the filtering material act like a |
| A. | drain |
| B. | inlet |
| C. | tiny settling basins |
| D. | outlet |
| Answer» C. tiny settling basins | |
| 315. |
Residual chlorine in water is determined by |
| A. | versenate |
| B. | starch-iodide |
| Answer» B. starch-iodide | |
| 316. |
Rpid sand filters are suitable for small towns and villages. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 317. |
The prsence of sodium chloride in water |
| A. | causes bad taste |
| B. | softens the water |
| C. | increases hardness of water |
| D. | stops epidemic |
| Answer» B. softens the water | |
| 318. |
A scour valve, in a water distribution system, is provided at |
| A. | low points |
| B. | high points |
| C. | junction points |
| D. | all of these |
| Answer» A. low points | |
| 319. |
The growth of population may be conveniently represented by |
| A. | semi-logarthmic curve |
| B. | logistic curve |
| C. | straight line curve |
| D. | all of these |
| Answer» B. logistic curve | |
| 320. |
The earth's water circulatory system is known as. |
| A. | water cycle |
| B. | hydrological cycle |
| C. | precipitation cycle |
| D. | all of these |
| Answer» B. hydrological cycle | |
| 321. |
The odour of water can be determined by |
| A. | thermometer |
| B. | Osmoscope |
| C. | Jackson's turbidimeter |
| D. | none of these |
| Answer» B. Osmoscope | |
| 322. |
Grit should be removed from sewage before |
| A. | their disposal in dilution water |
| B. | their lifting by means of pump etc. |
| C. | settling of sewage in sedimentation tank |
| D. | all of the above |
| Answer» D. all of the above | |
| 323. |
When a pervious strata is sandwitched between two impervious strata of cup shape, the well is called a tube well. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 324. |
If the level of source of water is higher than that of the place of consumption, the system adopted for supplying water is |
| A. | pumping system |
| B. | gravitational system |
| C. | combined pumping and gravity system |
| D. | any one of these |
| Answer» B. gravitational system | |
| 325. |
The residual chlorine |
| A. | is zero |
| B. | is maximum |
| C. | reappears |
| Answer» C. reappears | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.