Engg Services Civil Engineering Objective Paper 2 2009

7/27/2019 Engg Services Civil Engineering Objective Paper 2 2009

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.""'1nIf{., l. , . . !J. ..f. ...-BOIJnecrln2 So".rvice EXAmination -

DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SOT.B.C. : o-FTF-J-DFBSerial No.

16357

Time Allowed : Two Hours

TEST BOOKLETCIVIL ENGINEERING

Paper-III NSTRUCT IONS

Test Booklet Serles

AMaximum Ma ra 200

1. IMMEDIATELY AFfER THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULDCHECK THAT THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN ORMISSING PAGES OR ITEMS, ETC. IF SO, GET IT REPLACED BY A COMPLETE TESTBOOKLET.

2. ENCODE CLEARLY THE TEST BOOKLET SERIES A, B, C OR D AS THE CASE MAY BEIN THE APPROPRIATE PLACE IN THE ANSWER SHEET.3. You have to enter your Roll Number on the Test ..1-------------- ,Booklet in the Box provided alongside. DO NOTwrite anything else on the Test Booklet.4. This Test Booklet contains 120 items (questions) . Each item comprises four responses(answers). You will select th e response which you want to mark on the Answer Sheet.In case you feel that there is more than one correct response, mark the response whichyou consider the best. In any case, choose ONLY ONE response for each item.5. You have to mark al l your responses ONLY on the separate Answer Sheet provided .See directions in the Answer Sheet.6. All items carry equal marks .7. Before you proceed to mark in the Answer Sheet the responses to various items in theTest Booklet, you have to fill in some particulars in the Answer Sheet as per instructionssent to you with your Admission Certificate.S. After you have completed filling in al l your responses on the Answer Sheet and theexamination has concluded, you should hand over to the Invigilator only the AnswerSheet You are permitted to take away with you the Test Booklet.9. Sheets for rough work are appended in the Test Booklet at the end.

10. Penalty fo r wrong answers :THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE IN THEOBJECTNE TYPE QUESTION PAPERS.(i) There are four alternatives for the answer to every question. For each question forwhich a wrong answer has been given by th e candidate, onethlrd (033) of themarks assigned to that question will be deducted as penalty .(ii) I f a candidate gives more than one answer, it will be treated as a wrong annrer evenif one of the given answers happens to be correct and there will be same penalty asabove to that question .(iii) If a question is left blank, i.e., no answer is given by the candidate, there will beno penalty for that question .

DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO


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1. Free~ s u r f a c e G , H,B

F - - - - - - - - - - - - D

EConsider the above figUre relating .to buoyancy in water. What will beth e downward force upon the to p ofthe body ABCDEF?(a) The weight of th e liquid column

ABCHG(b) The weight of the liquid column

DEFGH(c) The weight of th e liquid

column ABCHG - the weight ofthe liquid column DEFGH

(d) The weight of th e liquidcolumn ABCHG + the weight ofthe liquid column DEFGH

2. Consider th e following statementsin respect of two-dimensionalincompressible flow with velocitycomponents u and u in x and ydirections respectively :1. The continuity equation isau au-=-ax ay2. The acceleration in x-direction. au au auIS ax =-+u-+u-

at ax CJy3 . The condition 'of irrotationaiitY. au auIS -= -ay ax4. The equation of a streamline is

udy= -udx

O-FTF-J-DFB/10A 2

Which of th e above statemen ts arecorrect?(a) 2 and 3 only(b) 1 and 2 only(c) I, 2 and 3(d) 3 and 4

3. Consider the following :1. Force on pipe bends and

tran s itions2. Je t propuls ion3. Flow velocities in open channel4. ' Vortex flowWhich of th e above admitemploying the moment of momentum equation?(a) 1 and 2 only(b) I , 2 and 3(c) 1 and 3 only(d) 2 ,3 and 4

4. Consider the following statements1. Shear ' stress is maximum at

the centre line .2. Maximum velocity is 3/2 times

the average velocity.3. Discharge varies inversely with

the coefficient of viscosity.4 . Slope of hydraulic gradient line

increases linearly with thevelocity of flow.

Which of the above statements arecorrect in connection with a steadylaminar flow through a circularpipe?(a) I, 3 and 4(b) 3 and 4 only(e) 1 and 3 only(d) 2 and 4


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5. Consider the following statements :Cavitation generally results from acombination of several influencesI. by reduction of pressure

intensity below a limiting value2. by increase in either elevation

or the velocity of flow3. by reduction of pressure load

in the system4. by decrease in the velocity

of flowWhich of the above statementsar e correct?

(a) I, 2 and 3(b) 1 and 2 only(c) 2 and 3 only(d) 3 and 4

6. Consider th e following factors1. The change in the shape and

size of the channel crosssection

2. The change in the slope of th echannel

3 . The presence of obstruction4 . The change in the frictional

forces at the boundariesWhich of th e above factors wouldcause a gradually varied flow?(a) I, 2, 3 and 4(b) I, 2 and 3 only(c) 2 and .4 only(d) 3 and 4 only

O-FfF-J-DFB/IOA 3

7. The power transmitted through apipeline is maximum when thehead lost due to friction in the pipeis equal to

(a) the total supply head

(b) half of th e total supply head(e) one-third of the total supply

head

(d) one-fourth of the total supplyhead

8. Consider th e following with respectto the application of the NavierStokes equations :1. Laminar flow in circular pipes2 . Laminar flow between con

centric rotating cylinders3. Laminar

betweenplates

unidirectional flowstationary parallel

4 . Laminar unidirectional flowbetween parallel plates havingrelative motion

Which of the above is / are correct?

(a) 1 only(b) 2 and 3 only(c) 3 and 4 only(d) I, 2, 3 and 4

[P.T. O.


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9. In a siphon system employed forcarrying water from a reservoir Aat a higher elevation to anotherreservoir B at lower elevation, bothbeing separated by a higher hill,what will be the pressure at the'Summit' (S)?fa) Equal to the pressure at the

water surface of reservoir A(b) Higher than the pressure at

the water surface of reservoir A(c) Equal to th e pressure at th e

water surface of reservoir B(d) Less than the pressure at both

A and B above

10. Match List-I with List-II and selectth e correct answer using the codegiven below the Lists :List-I

A. Rehbockformula

B. Francisformula

C. A specialtrapezoidalweir

O. Linear proportional weir

Code:(a) A

1(b) A

2(c) A

1(d) A

2

B3B4B4B3

O-FTF-J-OFB/10A

List-II1. Su ro weir2. Rectangular

suppressedweir

3. Rectangularside-contractedweir

4. Cippolletti weir

C4C3

o2o1

co3C4

2o1

4

11. While selecting a centrifugal pumpfor your requirement of head anddischarge on the basis of itsperformance characteristics, whichone of the following criteria is to beadopted?fa) Head, discharge and efficiency(b) Head and discharge only(c) Discharge only(d) Head only

12. Consider the following statements :The function of the impeller in acentrifugal pump is to1. convert the pressure energy

into hydraulic energy2. convert th e hydraulic energy

into mechanical energy3. convert the mechanical energyinto hydraulic energy4. transform most of th e kinetic

energies to pressure energyWhich of the above statementsis / are correct?

(a) 1 only(b) 3 only(e) I, 2 and 3(d) 2, 3 and 4


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13. A centrifugal pump gives max imumefficiency when it s impeller bladesare(a) bent forward(b) bent backward(c) straight(d) wave-shaped

14. Match List-l with List-II and selectthe correct answer using the codegiven below th e Lists :List-I

(Component)List-II

(Function)A. Spirai casing 1. To allow flow of

water through it toproduce a torquefor the rotation ofthe runner

B. Stay ring

c. Guide vane

D. Runner

Code :(a) A B

3 2(b) A B

1 2(e) A B

3 4(d) A B

1 4

O-FTF-J-DFB/10A

2. To direct the wateron the runner atan appropriateangle

3 . To distribute theflow over theperiphery of therunner4 . To act as columnhelping to supportthe electricalgenerator aboveth e turbine

C D4 1C D4 3C D2 1C D2 3

5

15. By which one of the following, asmall quantity of water may belifted to a great height?

16.

17.

(a) Hydraulic ra m(b) Hydraulic crane(e) Hydraulic lift(d) Hydraulic coupling

What is 'Hydrological Cycle'?(a) Processes involved in th e

transfer of moisture from seato land

(b) Processes involved in thetransfer of moisture from seaback to sea again

(c) Processes involved in thetransfer of water fromsnowmelt in mountains to sea

(d) Processes involved in thetransfer of moisture from seato land and back to sea again

Consider the following with respectto a 'double-mass curve' :1. Plot of accumulated rainfall

with respect to two chronological orders2. Plot for estimating multiple

missing rainfall data3 . Plot for checking the consis

tency of the rainfall data4. Plot of accumulated annual

rainfall of a station vs.accumulated rainfall of a groupof stations

Which of the above are correct?(a) 1 and 3(b) 2 and 3(e) 3 and 4(d) 1 and 4

[P . T.O.


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18. Generally to estimate PMP.Pm = 42. 16Do.47 5 is used (Pm ismaximum depth of precipitation .D = duration). What are the units ofPm and D in the equation?(a) mm, sec(b) em, sec(e) mm, hr(d) em, hr

19. A triangular direct runoff hydrographdue to a storm has a time base of60 hr and a peak flow of 30 m 3 / soccurring at 20 hr from the start.I f the catchment area is 300 km 2 what is th e rainfall excess in thestorm?(a) 50 mm{b} 20 mm(e) 108 mm(d) 8 '3 mm

20. A 3 hr unit hydrograph U1 of acatchment of area 235 km 2 is inth e form of a triangle with peakdischarge 30 m 3 / s. Another 3 hrunit hydrograph U2 is also triangularin shape and has the same basewidth as U1 but has a peak flow of90 m 3 / s. What is the catchmentarea of U 2 ?(a) 117'5km 2(b) 235 km 2(e) 470 kro 2(d) 705 km 2

O-FTF-J-DFB/10A 6

21. Consider the following chemicalemulsions:l . Methyl alcohol2. Cetyl alcohol3. Stearyl alcohol4. Kerosene

Which of the above chemicalemulsions is / are used to minimizethe loss of water through th eprocess of evaporation?

(a) 1 only(b) 1 and 4

(e) 2 and 4

(d) 2 and 3

22. A catchment area of 60 ha has arunoff coefficient of 0'40 . If a stormof intensity 3 cm/h and durationlonger than th e time of concen-tration occurs in th e catchment.then what is th e peak discharge?

(aJ 2'Om 3 /s(b) 35 m 3 /s

(e) 4 5 m 3 /s

(d) 2'5m 3 /s


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23. The land use of an area and thecorresponding nmoff coefficientsare as follows :

S1. Land use Area RunoffNo . (ha) coefficient1. Roads 10 0-702_ Lawn 20 0 -103_ Residential area 50 0-304_ Industrial area 20 O-SO

What is the equivalent runoffcoefficient?

(a) 0-15

(b) 036

(c) OAO

(d) 0-51

24. The head on a sharp-crestedrectangular weir of height 1-6 mand crest length 1-2 m wasincorrectly observed to be 0-13 mwhen it was actually 0-15 m _Whatwas the percentage error in thecomputed value of flow rate?(a) 0-5%(b) 1'0%(c) 20%(d) 1'5%

O-FTF-J-DFB/IOA 7

25 . Consider the following with respectto measurement of stream flowduring flood :1. Timing of the travel of floats

released in the stream2. Use of weir formula for

spillways provided ' on a dam3, Calculation of flow through a

contracted opening at a bridge4. Using a current meterWhich of the above is/are reliableand accurate?

(a) 1

(b) 4 only

(c) 3 and 4

(d) 2 and 3

26 . Under which one of the followingcategories is the river Gangaclassified in the reach through UPand Bihar?(a) Straight river

(b) Meandering river

(c) Braided river

(d) Deltaic river

{ P. T_O_


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27. Which of th e following categoriesbest describes th e Hirakud reservoir?

(a) Resetvoir for irrigation andpower

(b) Resetvoir for flood control,power and irrigation

(c) Resetvoir for irrigation andwater supply

(d) Reservoir for recreation andfishery

28. During a particular stage of thegrowth of a crop, consumptive useof water is 28 mm/day . If theamount of water available in thesoil is 25% of 80 mm depth ofwater, what is the frequency ofirrigation?

(a) 9 days

(b) 13 days

(e) 21 days

(d) 25 days

O - F T F ~ - D F B / I 0 A 8

29. Consider the following statements :Irrigation water has to be suppliedto the crops when the moisturelevel falls

1. below fie ld capacity2 . to wilting point3 . below wilting pointWhich of the above statementsis / are correct?

(a) 1(b) 2 only(c) 3 only(d) 2 and 3

30. A groundwater basin consists of10 \an 2 area of plains. Themaximum groundwater tablefluctuation has been obsetved to be1'5 m. Consider specific yield of thebasin as 10%. What is the availablegroundwater storage in millioncubic metres?(a) 10(b) 15(c) 2'5(d) 20


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31. In a canal irrigation project , 76% ofthe culturable command area (CCA)remained without water duringKharif season; and 58% of CCAremained without water duringRabi season in a particular year .Rest of the areas got irrigated ineach crop respectively. What is theintensity of irrigation for the projectin that year?

(a) 134%

(b) 76%

(e) 66%

(d) 58%

32. What is the critical combination ofvertical and horizontal earthquakeaccelerations to be considered forchecking the stability of a gravitydam in reservoir full condition?(a) Vertically upward and

horizontally downstream

(b) Vertically upward andhorizontally upstream

(e) Vertically downward andhorizontally upstream

(d) Vertically downward andhorizontally downstream

O-FTF-J-OFB/IOA 9

33. What is the height of wave which islikely to be generated by a wind of80 km/hr in a reservoir having afetch of 50 !un?(a) 0'5 m(b) 10 m(e) 20 m(d) 3 0 m

34 . Consider the following statements :1. Giving equal weightages to

horizontal and vertical creepsfor design of weir foundationsis one of th e drawbacks ofKennedy's theory.

2. Khosla's theory of design offoundations for weirs is basedon potential theory .

3 . Piping problem can be reducedby increasing the length of floor.

4. In Lane's weighted creeptheory, horizontal creep isgiven less weightage comparedto vertical creep.

Which of th e above statementsis / are correct?(a) 1(b) 2, 3 and 4(e) 2 and 4 only(d) 3 and 4 only

(P . T. O.


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35. Consider th e following statements.related to undersluices providedin diversion ,weirs on permeablefoundations :1. They are fully gate-controlled

and have crest at the samelevel as th e weir crest when nosilt excluders ar e provided.

2. They scour the silt depositedon the river bed in the pocketsupstream of the canal headregulator.

3 . It is not necessary to provideend pile line on the downstreamend of the undersluice floor.

4. The discharge capacity of theundersluice is 10-15% of themaximum flood or two timesthe maximum discharge of theofItaking canal or maximumwinter discharge, whichever isthe highest.

Which of the above statementsis / ar e correct?(a) 1(b) 2 and 4 only(c) 2, 3 and 4(d) 3 and 4 only

36. What is th e most important designparameter used in designing acontinuous flow rectangularsedimentation tank for removal ofdiscrete particles?(a) Length of the tank(b) Surface overflow rate(c) Depth of the tank(d) Temperature of the water to be

treated

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37. Effiuent from a wastewater treatmentplant (flow rate = 8640 m 3 / d,temperature = 25 DC) is dischargedto a surface stream (flow rate =12 m 3 /s, temperature = 15 DC).What is the temperature of thestream after mixing?(a) 10 DC(b) 1577 DC(e) 20 DC(d) 2499 DC

38 . Match List-I with List-II and selectth e correct answer using the codegiven below th e ListsList-I

(Type of impurity)A. Excess of

nitratesB. Excess of

fluorides

List-II(Harm caused)

: 1. Brackish water

2. Goiter

C. Lack of iodides 3. Fragile bonesD. Excess of 4. Blue babies

chloridesCode:(a) A

4; (b) A

1(e) A

4(d) A

1

B2B2B3B3

C3C3C2C2

D1D4D1

D4


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39. The concentration of OH- ion in awater saIIlple is measured as17 mg/L at 25 ' C. What is the pH ofthe water sample?

(a) 10(b) 11(e) 12(d) 13

40. Which combination of surface waterquality parameters will indicatesweep coagulation as th e preferredmechanism of coagulation?

(a) High turbidity-low alkalinity(b) High turbidity-high alkalinity(e) Low turbidity-high alkalinity(d) Low turbidity-low alkalinity

41. Which one of the following processesof water softening requiresrecarbonation?

(a) Lime-soda ash process(b) Hydrogen-cation

process

(e) Sodium-cationprocess

(d) Demineralization

O-FTF-J-DFB/I0A

exchanger

exchanger

42. Match List-I with List-II and selectthe correct answer using the codegiven below the ListsList-I List-II

(Water/Wastewater (Operating problem)treatment)

A. Trickling filter 1. Negative headB. Activated 2. Fly-breeding

sludge processC. Rapid gravity 3 . Sludge bulking

filterD. Anaerobic

sludge digester4. pH reduction

Code:(a) A4(b) A

2(e) A

4(d) A

2

B3B3B1B1

C1C1C3C3

D2D4D2D4

43. Consider the following treatmentprocess units in a water treatmentplant :1. Coagulation2. Disinfection3. Sedimentation4. FiltrationWhich is the correct sequence ofthe process units in th e watertreatment plant?(a) 2-4-3-1(b) 1-4-3-2(e) 2-3-4-1(d) 1-3-4-2

11 [P . T. O .


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44. Which one of the following testsof water/wastewater employsErichrome Black T a s an indicator?

fa) Hardness

(b) COD

fe) Residual chlorine

(d) DO

45. Which of th e following pollutantsare generally not removed in as ewage treatment p lant?

la) Inorganic suspended solids

(b) Dissolved organic solids

Ie) Oil and grease

(d) Dissolved inorganic solids

46. What is thedemand ofs olution?

(a) 300 mg/L

(b) 320 mg/L(e) 350 mg/L

(d) 400 mg/L

0-FTF-J-DFB/I0A

theoretical300 mg/L

oxygenglucose

12

47. Which one of the following types ofsamples is relevantly employed forthe design of wastewater treatmentplant?fa) Grab sample(b) Composite sample(e) Integrated sample(d) Any sample

48. A drain carrying sewage ofBOD = 200 mg/L and flow rate of50 m 3 /s joins a river whoseupstream BOD is 8 mg / L and flowrate is 500 m 3/s. Assume imme-diate and complete mixing of drainwith the river. What is th eestimated downstream BOD of th eriver flow?

,(a) 204 mg/L! (b) 25 '4 mg/L

(e) 104-4 mg/L(d) 70'4 mg/L

49. A 125 mL sample of treated waste;water requires 1875 mL of odor-freedistilled water to reduce the odor toa level that is jus t perceptible. What

'is the threshold odor number (TON)'for the wastewater sample?.fa) 0 07'(b) 1'07(e) 15(d) 16


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50. Which on e of the followingparameters is not included in theroutine characterization of solidwaste for it s physical composition?

(a) Moisture content

(b) Density(e) Particle size analysis

(d) Energy value

5 l . Which one of th e following toxicgases has physiological action asasphyxiant?

(d) CO

52 . Assuming annual travel for eachvehicle to be 20000 km , what is thequantity of NO x produced from50000 vehicles with emission rateof 20 g/km/vehicle?(a) 1800 tonnes

(b) 1900 tonnes(e) 2000 tonnes

(d) 2100 tonnes

O-FTF-J-DFB/10A

53. What are the air pollutantsresponsible for acid rain within anddownwind areas of major industrialemissions?

(a) Hydrogen sulfide and oxides ofnitrogen

(b) Sulfur dioxide and oxides ofnitrogen

(e) Carbon dioxide and hydrogensulfide

(d) Methane and hydrogen sulfide

54. Consider the following air pollutants :1. NO x2. PAN3. CO24. COWhich of th e above air pollutantsis/are present in an auto exhaustgas?

(a) 1 only

(b) 1 and 2(e) 2 and 3

(d) I, 3 and 4

13 (P. T . 0.


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55. Consider th e following properties forclays X and Y :

SI.No .L2.3.

Properties Clay X Clay Y(%) (%)

Liquid limit 42 56Plastic limit 20 34Natural watercontent 30 50

Which of th e clays, X or Y,experiences 'larger settlement underidentical loads; is more plastic; andis softer in consistency?(a) X, Yand X(b) Y, X and X(e) Y, X and Y(d) X, X and Y

56. A clay sample, originally 26 mmthick at a void ratio of 1'22, wassubjected to a compressive load.After the clay sample was completelyconsolidated , it s thickness wasmeasured to be 24 mm. What is thefinal void ratio?(a) 1322(b) 1'421(e) 1311(d) 1050

57. For a sandy soil with soil grainsspherical in shape and uniform insize, what is the theoretical voidratio?(a) 061(b) 071(c) 091(d) 081

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58. A soil has liquid limit = 35, plasticlimit = 20 , shrinkage limit = 10 andnatural moisture content = 25% .What will be its liquidity index,plasticity index and shrinkage index?(a) 0'67, 15 and 25(b) 0 '33, 15 and 10(c) 0 '67, 25 and 15(d) 0'33, 20 and 15

A cohesive soil yields a maximumdry density of 16 kN/m 3 during astandard Proctor Compaction test.If the specific gravity is 2 '65 , whatwould be its void ratio?(a) 0'552(b) 0'624(e) 0 '712(d) 0583

60. Consider the following :1. Increase in shear strength and

bearing capacity 2. Increase in slope stability

3. Decrease in settlement of soil 4. Decrease in permeability Which of th e above with respect tocompaction of soil is/are correct?(a) 1 only(b) 1 and 2 only(e) 2 and 3 only(d) I, 2, 3 and 4


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61. Fo r a sheet pile wall constructedin 3: soil having effective grainsize = o r mm, . he difference of theupstream and downstream waterlevels is 3 m. If the flow net drawnfor the problem yields 2 as th e ratioof number of head drops to numberof flow channels, then what isthe discharge in unit of m 3 I slmlength of sheet pile wall?(a) 30 x 10-4(b) 30 x 10-2(c) 15 x 10-4(d) 15 x 10-2

62 . Consider the following statements

63 .

1. Quicksand is a special varietyof sand.

2. Quicksand is not a materialbut a hydraulic condition.

3. In nature, quicksand conditionis observed usually in coarsesilt or fine sand.

Which of the above statements arecorrect?(a) 1, 2 and 3(b) 1 and 2 only(e) 2 and 3 only(d) 1 and 3 only

In a 6 m thick stratum of fine sandhaving submerged density of11 kN1m 3, quicksand conditionoccurred at a depth of 42 m ofexcavation. What is the depthof lowering of groundwater tablerequired for making an excavation5 m deep? Take de nsity of wateras 10 kN/m 3 .(a) 385 m(c) 11 m

(b) 168 m(d) 0897 m

O-FTF-J-DFB/I0A 15

64. Consider the following statements :1. Permeability of a soil decreases

as the effective stress acting onthe soil increases.

2. The presence of organic matterin the soil increases it spermeability3. Entrapped air decreases thepermeability of a soil.

Which of the above statementsis I are correct?(a) 1 only(b) 1 and 2(e) 2 and 3(d) 1 and 3

65. Aim thick layer of saturated clay,drained at both faces, settles by10 cm in one year. If a thin layer ofpervious soil is introduced in themiddle of this layer, then what willbe the period during which thesettlement of 10 cm will becompleted?(a) 4 years(b) 05 year(e) 025 year(d) 2 years

66. Which one of the following conditionsis valid in case of unconfinedcompression test in comparison totriaxial test?fa) Minor principal stress = 0(b) Minor principal stress = 05 x

major principal stress(e) Minor principal stress = major

principal stress(d) Major principal stress = 3 x

minor principal stress

(P. T. o.


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/ .67 . In an unconfined compression teston stiff clay, if th e failure planemade an angle of 52 to thehorizontal, what would be the angleof shearing resistance?la) 16 (b) 14Ic) 12 Id) 13

68. On which of the following soils is thestandard penetration test useful?1. Cohesionless soils2. Medium clays3. Gravelly soils4. Very stiff claysSelect the correct answer using thecode given below :Code :la) 1 only(b) 1 and 3Ic) 1 and 2(d) 3 and 4

69. Consider th e following statements1. Standard penetration test (SPT)

is conducted by pushing acone into soil at th e rate of2 cm/s.

2. Standard penetration testresults are unreliable indeposits containing largenumber of boulders.

3. Dutch cone is a staticpenetrometer.

Which of the above statementsis are correct?la) 1 only(b) 1 and 2Ie) 2 and 3(d) 3 only

O-FfF.,J-DFB/ lOA 16

70. What is the intensity of active earthpressure at a depth of 100 m in drysand with an angle of shearingresistance of 30 and unit weight of18 kN/m 3?fa) 50kN/m 3(b) 60 kN/m 3Ie) 70 kN/m 3Id) 80 kN/m 3

71. When a vertical face excavation wasmade in a clayey silt, having densityof 20 kN/m 3 , it failed at a depthof excavation of 4 m. What is thecohesive strength (in kN / m 2) of th esoil, if its angle of internal friction.was 30 ?la) 23 ' 1(c) 11 '6

Ib) 20 0Id) 102

72. If an SPT test gave the average blowcount of 32 in fine sand below water. table, then what is the correctedvalue of blow count?la) 22 1

' Ie) 242Ib) 23 5Id) 248

73. Consider the following statements1. The soil obtained from washboring , is a representativesample.

2. Recovery ratio will be highduring drilling in sound rock.

3 . Hollow stem augers aresometimes used to drill holesin silty sand.

Which of the above statementsis/ are correct?la) 1 only(b) 1 and 2Ie) 2 and 3Id) 3 only


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74. The standard penetration resistancevalue obtained in a deep deposit ofsand at a depth of 60 m was 28.The unit weight of sand is180 kN/m 3 . What is the correctedvalue of number of blows foroverburden pressure?

75.

la) 60Ie) 59

(b) 57Id) 55

Th e net ultimate bearing capacity ofa purely cohesive soilla) depends on the width of the

footing and is independent ofthe depth of the footing

(b) depends on the width as wellas the depth of the footing

Ie) depends on the depth , but isindependent of the width, ofthe footing

Id) is independent of both thewidth and the depth of th efooting

76. A soil has a low allowable bearingcapacity. The soil deposit containscompressible loess. A foundation isto be provided fo r a structurecarrying a heavy load . Which one ofthe following foundation types is tobe adopted?la) Strap footing(b) Continuous footingIe) Raft foundationId) Combined spread foundation

77. Consider the follOwing statements :Increasing width of footing resultsin1. increase in settlement of a

consolidating clay layer2. increase in be.iring capacity of

sandy soils3. decrease in bearing capacity of

clays

O-FTF-,J-DFB/10A 17

78.

Which of the above statementsis / are correct?la) 1 only(b) 1 and 2 onlyIc) 2 and 3 onlyId) I , 2 and 3

Consider the following statementswith respect to an anchored sheetpile wall :1. Failure occurs due to bulging.2 . Failure occurs due to rotation .3. Large yield is observed above

the anchor ro d .4 . Large yield is observed below

the anchor rod and above thedredge line .Which of the above statements

is / are correct?la) 1 only(b) 2 and 3Ie) 1 and 4(d) 3 and 4

79. Consider the following statements1. Underreamed piles are precast

piles with one or moreunderreams in each pile.2 . The ratio of pile shaft size to

bulb size in an underreamedpile may be 033 to 050 .

3. In a multibulb underreamedpile, the load-carrying capacityis a function of the area ofcross-section of the lowest bulb.

Which of the above statementsis / are correct?la) 1 only(b) 1 and 2 onlyIc) 2 and 3 onlyId) I, 2 and 3

[P. T. O.


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80. Consider the following statements :1. Underreamed piles are

designed as bearing piles.2 . In multiple-bulb underreamed

piles, th e bulbs are spaced at1'5 to 20 times th e diameter ofthe underream, the centre ofthe fIrst underream being at aminimum depth of 175 m .

3. The length of traditionalunderreamed pile ranges from3 m to 4 m.

Which of the above statementsis are correct?(a) 2 and 3(b) 1 and 2(c) 2 only(d) 1 and 3

81. Consider th e following clay minerals :1. Kaolinite2. Montmorillonite3 . IlliteWhat is the correct sequence in anincreasing order of their plasticityindex?(a) 1-2-3(b) 3-2-1(c) 1-3-2(d) 3-1-2

82. Which one of the following conditionsrequires geodetic surveying?(a) Horizontal curve ranging(b) Vertical curve ranging(c) Survey of a country(d) Reconnaissance survey

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83. Which of the following coordinatesystems is the most convenient wayto specify the position of th e star oncelestial sphere?(a) Latitude and longitude(b) Altitude and azimuth(c) Declination and right ascen

sion(d) Declination and hour angle

84. Consider the following equipments :1. Tacheometer2. Odometer ..3. Passometer4. PerambulatorWhich of th e above equipments canbe employed for measurement ofhorizontal distance?(a) 1 and 2 only(b) 1 and 3 only(e) 2 and 3 only(d) I, 2, 3 and 4

85. Consider the following statements :In surveying operations, the word'rec,iprocal' can be associated with1. ranging2. levelling3. contouringWhich of the above statementsis are correct?(a) 1 only(b) 1 and 2 only(c) 2 and 3 only(d) I, 2 and 3


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86. Which of the following sights will beapplicable for a change point?(a) Back sight

(b) Intennediate sight and foresight(c) Fore sight

(d) Back sight and fore sight

87. The whole circle bearings of lines OPand OQ are 1815' and 33545'respectively. What is the value ofth e included angle QOP?

(a) 30730'

(b) .4230'

(e) 35400'

(d) 17700'

88. Which one of the following linearmethods of setting out a circularcurve needs reference of the centreof the curve?

(a) Offset from chord produced

(b) Radial offset

(e) Perpendicular offset

(d) Successive bisection of arcs

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89. Consider th e following statements :Reciprocal levelling is a method oflevelling adopted when1. th e difference of levels between

two points at a considerabledistance apart is to bedetennined with great precision

2. it is not possible to set up thelevel rrildway between twopoints as in th e case of a deepvalley or a river

3. error due to improper centeringof level is to be eliminated

Which of the above statementsis /are correct?(a) 1 only(h) 1 and 2(c) 2 and 3(d) 1 and 3

90. Consider th e following statementsErrors eliminated by taking bothface observations are those due to1. horizontal axis not beingperpendicular to the vertical

axis2.

3.

non-parallelism of th e axis oftelescope level and line ofcollimationimperfect adjustment ofvertical circle vernier

Which of th e above statementsare correct?(a) I, 2 and 3(b) 1 and 2 only(c) 2 and 3 only(d) 1 and 3 only

19 I P. T. O.


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91. I f everyone of the three angles of atriangle has a probable error of 1" ,then what will be the probable errorin the sum of the so-measuredinternal angles of th e triangle?(a) 1"(b) 3"(c) 9"(d) ..{Y'

92. How many sidereal days are there ina solar year?(a) 3652840(b) 366 '2422(c) 360 '2500(d) 365 '0000

93. Consider th e following statementsA sidereal year can be defined asth e time interval1. between two successive transits

of the sun through themeridian of any of the fixedstars

2. between two successive vernalequinoxes

3. between two successivepassages of th e sun throughperigee

Which of th e above statementsis / are correct?(a) 3 only(b) 1 and 2(c) 2 and 3(d) 1 only

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94. Which one of th e following methodsof computing area assumes that th eshort lengths of th e boundarybetween the ordinates ar e parabolicarcs?

(a) Average ordinate rule(b) Middle ordinate rule(e) Simpson's rule(d) Trapezoidal rule

95. Which one of th e following errorsis more severe in plane-tablesurveying?(a) Defective sighting(b) Defective orientation(e) Movement of board between

sights(d) Non-horizontaiity of board

when points sighted are atlarge differences of theirelevation

96. Which one of the following tests isperformed in the laboratory todetermine the extent of weatheringof aggregates for roadworks?(a) Soundness test(b) Crushing test(c) Impact test(d) Abrasion test


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97. Which one of the following geometricfeatures requires the magnitudes ofweaving angle and weaving distancefor its design?(a) Rotary design(b) Right-angle intersection(e) Roundabout(d) Grade-separated junction

98. Which one of the following methodsis used in the design of rigidpavements?(a) CBR method(b) Group index method(e) Westergaard's method(d) McLeod 's method

99. In which one of the following yards ,are reception, sorting and dispatchof railway wagons done?(a) Loco yard(b) Marshalling yard(e) Goods yard(d) Passenger yard

100. Which one of th e following is not adesirable property of the su bgradesoil as a highway material?(a) Stability(b) Ease of compaction(e) Good drainage(d) Bitumen adhesion

O-FTF--I-DFB/I0A 21

101. Ho t bitumen is sprayed over freshlyconstructed bituminous surfacefollowed by spreading of 63 mmcoarse aggregates and rolled. Whichone of the following is indicated bythis type of construction?(a) Surface dressing(b) Gravel-bitumen mix(e) Liquid seal coat(d) Seal coat

102. Radius of relative stiffness of cementconcrete pavement does not dependupon which one of the following?(a) Modulus of subgrade reaction(b) Wheel load(e) Modulus of elasticity of cement

concrete

(d) Poisson's ratio of concrete103. For conditions obtaining in India, at

which location in a cement concretepavement will the combined stressesdue to traffic wheel load andtemperature have to be criticallychecked during design?(a) Corner(b) Corner and interior(e) Corner and edge(d) Corner, edge and interior

[P. T. O .


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104. Which one of th e following sets offactors is related to design ofthickness rigid pavement byWestergaard method?(a) CBR value and stiffness index

of soil(b) Deflection factor and traffic

index(e) Swelling index and bulk

modulus(d) Radius of relative stiffness and

modulus of subgrade reaction

105. Consider the following in r elation togroup index of soilI . Liquid limit2. Sandy loam3. Plasticity index4. Percent passing 75 microns

sieve

Which of th e above is/are usedfor estimating the group index?

(a) 1 only(b) 1 and 2(e) 2 and 3(d) 1, 3 and 4

O-FTF---J-DFB/I0A 22

106 . Which set of traffic studies isneeded for functional design as wellas for 'highway capacity' design?(a) Origin and destination studies

(b) Parking and accident studies(e) Speed and volume studies(d) Axle load studies

107. Which one of th e following trafficsurvey schemes is most relevantwhen decid ing on locating major'routes' in a city?(a) Traffic volume survey(b) Origin and destination survey(e) Speed survey(d) Traffic capacity survey

108. Which one of the followingequipments is useful in determining.spot speed in traffic engineering?(a) Endoscope(b) Periscope(e) Radar(d) Tachometer


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Directions :Each of the following twelve (121 itemsconsists of two statements, one labelled as'Assertion (A) ' and the other as 'Reason (R)'.You are to examine these tw o statementscarefully and select the answers to theseitems using the code given below :

Code :

la) Both A and R are individuallytrue and R is the correctexplanation of A

Ib) Both A and R are individuallytrue but R is not the correctexplanation of A

Ic) A is true but R is falseId) A is false but R is true

109. Assertion (A) :If a cylindrical body is placed in afluid stream and is rotated, then alift force is produced on the body .

Reason (R) :Rotation of the cylinder disturbsthe symmetrical pattern which intum alters the pressure distribution on the body .

110. Assertion (A) :The drag force on a sphere is morein laminar flow than in turbulentflow.

Reason (R)CD of a sphere is more in laminarflow than in turbulent flow.

O-FTF-J-DFB/I0A 23

111. Assertion (A) :Total energy of flow decreases inthe direction of flow.

Reason (R) :The specific energy may decrease,increase or remain constant.

112. Assertion (A) :For a hydraulically efficientchannel , the hydraulic radius isequal to half the depth of flow.

Reason (R) :A hydraulically efficient channelhas the minimum perimeter for agiven area of flow.

113. Assertion (A) :The rate of biomass productionwill be always lower than the rateof food utilization in a biologicalsystem having a mixed culture ofmicroorganism.

Reason (R) :Catabolism converts part of thefood into waste products.

114. Assertion (A) :The solution of a three-pointproblem in plane-table surveyingis aided by Lehmann 's rules .

Reason (R) :The application of Lehmann'srules reduces the triangle of errorand is a controlled trial-and-errortechnique .

[P.T. O.


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11S. Assertion (A) :Remote sensing is mostly quantitative in nature.

Reason (R)Remote sensing involves thesubjective interpretation of theimagery.

116. Assertion (A) :In water-bound macadamconstruction, grade I has betterload dispersion characteristics ascompared to grade ' " aggregates.

Reason (R) :The plasticity index of the bindingmaterial should be less than 6%.

117. Assertion (A) :Dowel bars are provided atexpansion joints and sometimesalso at contraction joints in cementconcrete slabs.

Reason (R) :Longitudinal joints in cementconcrete pavements are constructed with tie bars.

O-FTF-J-DFB/10A 24

118. Assertion (A) :When a turnout is taken off from acurved track, it is called gauntlettrack.

Reason (R)When a turnout from a curvedtrack turns away in th e oppositedirection, the curves are said to beof contrary flexure.

119. Assertion (A) :In case of airports, the innermostportion of approach zone, whereany obstruction is to ,be criticallyviewed, is known as th e clear zone.

Reason (R) :The area of airport, other than theapproach zone, whlch is used forturning of aircrafts, is called theturning zone.

120. Assertion (A) :Helipads are usually located inclose proximity to traffic-generatingareas.

Reason (R) :A helicopter cannot ascend ordescend exactly vertically.


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SPACE FOR ROUGH WORK

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Documents

Engg Services Civil Engineering Objective Paper 2 2009