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.
| 351. |
The period of cleaning of a slow sand filter, is usually |
| A. | 5 to 10 days |
| B. | two weeks to three weeks |
| C. | one month to three months |
| D. | three months to six months |
| Answer» D. three months to six months | |
| 352. |
Before constructing a dam, the factor to be considered for controlling sedimentation, is |
| A. | selection of dam site |
| B. | construction of check dams |
| C. | providing vegetation screens |
| D. | All the above. |
| Answer» E. | |
| 353. |
The ratio of discharge and plan area of a continuous flow type settling tank, is known |
| A. | surface loading |
| B. | overflow |
| C. | overflow rate |
| D. | all the above. |
| Answer» E. | |
| 354. |
The factor for the selection of pumping station site, is |
| A. | distance of the source of contamination or pollution |
| B. | height above the H.F.L. of the river |
| C. | future expansion |
| D. | all the above. |
| Answer» E. | |
| 355. |
In the following equation of a logistic curve of population growth, the constant m is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 356. |
The fire demand for ascertaining the following empirical formula known as |
| A. | Kuichling's formula |
| B. | Buston's formula |
| C. | Freeman formula |
| D. | Under Writers formula |
| Answer» D. Under Writers formula | |
| 357. |
The discharge given by following equation for the confined tube well is obtained from |
| A. | Thiem's formula |
| B. | Darcy's formula |
| C. | Tolman's formula |
| D. | Dupuits formula |
| Answer» E. | |
| 358. |
The valve shown in the below figure, is generally known as |
| A. | air valve |
| B. | pressure relief valve |
| C. | sluice valve |
| D. | none of these |
| Answer» C. sluice valve | |
| 359. |
The formula for pipe flows, suggested by, Hazen-William is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 360. |
According to Godrich the ratio of peak demand rate to mean demand is |
| A. | A |
| B. | B |
| C. | Both C and D |
| D. | All of these |
| Answer» E. | |
| 361. |
For the same draw down in two observations wells at distances r1 and r2, the times after start of pumping are t1 and t2 hours respectively. The relation which holds good is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 362. |
S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For discharge Q and coefficient of transmissibility T, the relationship, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 363. |
According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for |
| A. | Boarding schools |
| B. | Nurses home and medical quarters |
| C. | hostels |
| D. | all the above. |
| Answer» E. | |
| 364. |
The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level |
| A. | 1500 m |
| B. | 1505 m |
| C. | 1475 m |
| D. | 1485 m. |
| Answer» E. | |
| 365. |
Pick up the incorrect statement from the following. The underground sources of water, is from |
| A. | wells |
| B. | springs |
| C. | infiltration wells |
| D. | storage reservoirs |
| Answer» E. | |
| 366. |
The transitional middle portion of a logistic curve follows |
| A. | a geometric growth |
| B. | a logarithmic growth |
| C. | a first over curve |
| D. | a constant rate. |
| Answer» E. | |
| 367. |
Perched acquifers generally occur |
| A. | below water table |
| B. | above water table |
| C. | in acquicludes |
| D. | in artesian acquifers |
| Answer» C. in acquicludes | |
| 368. |
Silt storage is the same as |
| A. | dead storage |
| B. | live storage |
| C. | effective storage |
| D. | none of these. |
| Answer» B. live storage | |
| 369. |
For complete stabilisation of organic matter in polluted water, it takes |
| A. | 5 days |
| B. | 10 days |
| C. | 20 days |
| D. | 30 days |
| Answer» E. | |
| 370. |
An earth formation which, although porous and capable of absoring water does not provide an appreciable supply to wells, is known as |
| A. | acquifer |
| B. | aquiclude |
| C. | aquifuge |
| D. | none of these. |
| Answer» C. aquifuge | |
| 371. |
De-chlorination is followed by |
| A. | post-chlorination |
| B. | pre-chlorination |
| C. | double-chlorination |
| D. | super-chlorination. |
| Answer» E. | |
| 372. |
Velocity of flow of water in plain sedimentation water tank, is normally kept |
| A. | 3 cm/minute |
| B. | 10 cm/minute |
| C. | 20 cm/minute |
| D. | 30 cm/minute |
| Answer» E. | |
| 373. |
The requirement of water per capita per day, is |
| A. | 90 litres |
| B. | 150 litres |
| C. | 250 litres |
| D. | 400 litres. |
| Answer» B. 150 litres | |
| 374. |
During treatment of water, sedimentation is done |
| A. | before filtration |
| B. | after filtration |
| C. | simultaneously with filtration |
| D. | along with chlorination. |
| Answer» B. after filtration | |
| 375. |
Suction lift of a pump depends upon |
| A. | atmospheric pressure |
| B. | water temperature |
| C. | velocity of water in suction pipe |
| D. | all the above. |
| Answer» E. | |
| 376. |
Chlorination of water does not remove |
| A. | ammonia content |
| B. | B.O.D. |
| C. | organic matter content |
| D. | dissolved oxygen. |
| Answer» E. | |
| 377. |
Cast iron pipes |
| A. | are widely used in city water supplies |
| B. | resist corrosion satisfactorily |
| C. | may last for 100 years |
| D. | all the above. |
| Answer» E. | |
| 378. |
The efficiency of a pumping set, is generally assumed |
| A. | 50% |
| B. | 55% |
| C. | 60% |
| D. | 65% |
| Answer» E. | |
| 379. |
For centrifugal pumps |
| A. | initial cost is low |
| B. | limited space is required |
| C. | the discharge obtained is steady and non-pulsating |
| D. | all the above. |
| Answer» E. | |
| 380. |
Water may contain |
| A. | bicarbonate alkalinity |
| B. | carbonate alkalinity |
| C. | hydroxide alkalinity |
| D. | all the above. |
| Answer» E. | |
| 381. |
According to Kuichling's formula, fire demand in litres per minute for a |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 382. |
P0, P1, P2 be the populations of a city at times t0, t1 and t2 = 2t1, the saturation value of the population Ps of the city, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 383. |
The superimposed load transmitted to the pipe, is generally evaluated by Bousiness formula |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 384. |
Most satisfactory formula for an estimate of fire demand Q for a city of population P in thousands for Indian conditions, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 385. |
Q is the discharge from an unconfined tube well with depression head s through its pipe of radius rw. If the radius of influence is R, the length of the required strainer, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 386. |
Time of concentration |
| A. | is the time taken, for precipitation |
| B. | duration of rainfall. |
| C. | time taken for all the ran off to reach the drain |
| D. | time taken for the storm water to travel from the most remote point to the drain. |
| Answer» E. | |
| 387. |
The specific retention is least in case of |
| A. | Clay |
| B. | Sand |
| C. | Silt |
| D. | Coarse gravel. |
| Answer» E. | |
| 388. |
Acidity in water is caused due to |
| A. | Mineral acids |
| B. | Free CO₂ |
| C. | Aluminium sulphate |
| D. | All the above. |
| Answer» E. | |
| 389. |
Mathamoglobinemia or blue baby disease is caused due to |
| A. | Chlorides |
| B. | Nitrites |
| C. | Nitrates |
| D. | Sulphides |
| Answer» D. Sulphides | |
| 390. |
The fire demand of a city may be worked out by |
| A. | Kuichling’s formula |
| B. | Freeman formula |
| C. | Bustan’s formula |
| D. | All the above |
| Answer» E. | |
| 391. |
While determining the yield of open wells by the pumping test |
| A. | Velocity of recharging water, increases with depression head |
| B. | Depression head resulting at critical velocity, is called critical depression head |
| C. | Working head is generally limited to ?rd of the critical depression head |
| D. | Maximum safe yield of an open well, is expected at critical depression head |
| Answer» E. | |
| 392. |
Average annual rainfall at any station is the average of annual rainfall over a period of |
| A. | 14 years |
| B. | 21 years |
| C. | 28 years |
| D. | 35 years |
| Answer» E. | |
| 393. |
When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied |
| A. | By pumping system |
| B. | By gravitational system |
| C. | Both (A) and (B) |
| D. | All the above |
| Answer» C. Both (A) and (B) | |
| 394. |
The factor affecting per capita demand, is |
| A. | size of the city |
| B. | climatic conditions |
| C. | cost of water |
| D. | all the above |
| Answer» E. | |
| 395. |
For the prediction of future population of a city, the factor to be considered, is |
| A. | Births |
| B. | Deaths |
| C. | Migrants |
| D. | All the above |
| Answer» E. | |
| 396. |
Surge tanks are used |
| A. | for storage water |
| B. | to increase the velocity in a pipeline |
| C. | as overflow valves |
| D. | to guard against water hammer |
| Answer» E. | |
| 397. |
Surcharge storage zone of a reservoir, is |
| A. | Below dead storage |
| B. | Between dead storage and useful storage |
| C. | Above useful storage |
| D. | Also known as valley storage |
| Answer» D. Also known as valley storage | |
| 398. |
The process of passing water through beds of granular materials, is called |
| A. | Screening |
| B. | Sedimentation |
| C. | Filtration |
| D. | None of these |
| Answer» D. None of these | |
| 399. |
To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 √Q, the water horse power of the pump is |
| A. | 400 |
| B. | 450 |
| C. | 500 |
| D. | 600 |
| Answer» E. | |
| 400. |
Specific capacity or yield of wells, is generally expressed, as |
| A. | m³/sec |
| B. | m³/hour |
| C. | m³/hour/m² |
| D. | m³/hour/m²/m |
| Answer» E. | |