(www.entrance exam.net) paper1

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PAPERI)

1. Timber can be made reasonably fire-resistant bya. soaking it in Ammonium Sulphate

b. coating with Tar paintc. pumping creosote oil into timber under

high pressured. seasoning process

2. Which one of the following statements isthe correct description of the structure offibre board ?

a.

Thin slices of superior quality of woodare glued and pressed on the surface ofinferior wood

b. Streamed mass of wood dusts, woodwool and other vegetable fibres are

pressed hard to a thickness varyingfrom 3 mm to 12 mm

c. Thin and narrow wood shavings aresoaked in a refractory binder materialand pressed hard

d. Thin and narrow wood shaving aresoaked in a refractory binder materialand pressed hard

3. Match List I(Constituents of bricks) withList II(corresponding influence) and selectthe correct answer :List IA. AluminaB. SilicaC. MagnesiaD. LimestoneList II1. Colour of brick2. Plasticity recovery for moulding3. Reacts with silica during burning and

causes particles to unite together anddevelopment of strength

4. Preserve the for on brick at hightemperature and prevents shrinkage

A B C Da. 2 1 4 3

b. 3 4 1 2

c. 2 4 1 3d. 3 1 4 2

4. In some brick masonry walls, patches ofwhitish crystals were found on the exposedsurfaces, also chipping and spalling of

bricks took place from the same walls.Which among the following are the causesof these defects ?1. Settlement of foundation2. Over-loading of the walls3. Sulphate attach4. Efflorescencea. 1 and 2

b. 2 and 3c. 2 and 4d. 3 and 4

5. Match List I with list II and select thecorrect answer :List I(Property)A. Specific heat of an aggregate

B.

Thermal conductivity of an aggregateC. Thermal expansionD. Durability of concreteList II(Characteristic)1. Breaks the bond between the aggregate

and the paste2. Is a measure of its heat capacity3. Is affected by differences n thermal

expansion of two different materials4. Is a measure of its ability to conduct

heatA B C D

a. 1 3 2 4 b. 2 4 1 3c. 1 4 2 3d. 2 3 1 4

6. Consider the following methods of preservation of timber :1. Pressure application2. Brush application

I.E.S-(OBJ) 2002

CIVIL ENGINEERING

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3 of 17d. Fe2O3, SiO 2 , Al 2O3, CaO

12. Consider the following statements :Pozzolana used as an admixture inconcrete has the following advantages :1. It improves workability with lesser

amount of water2. It increases heat of hydration and so

sets the concrete quickly3. It increases resistance to attach by salts

and sulphates4. It leaches calcium hydroxideSelect the correct answer using the codegiven below :a. 1, 2, 3 and 4

b. 1, 2, and 4c. 1 and 3d. 2, 3 and 4

13. The length of time for which a concretemixture will remain plastic is usually moredepended ona. the setting time of cement than on the

amount of mixing water andatmospheric temperature

b. the atmospheric temperature than onthe amount of mixing water and thesetting time of cement

c. the setting time of cement and theamount of mixing water than onatmospheric temperature

d. the amount of mixing water used andatmospheric temperature than on thesetting time of cement

14.

Which one among the following is thecorrect free body diagram for a portalframe shown in Figure given above ?

a.

b.

c.

d. 15. Consider the following statements :

Mohrs circle is used to determine thestress on an oblique section of a bodysubjected to1. direct tensile stress on one plane

accompanied by a shear stress2. direct tensile stresses in two mutually

perpendicular directions accompanied by a simple shear stress

3. direct tensile stress in two mutually perpendicular directions

4. a simple shear stressSelect the correct answer using the codesgiven below :a. 1 and 4

b. 2 and 3c. 1, 2, 3 and 4d. 1, 2 and 3

16. A bar of square cross- section, having anarea of cross-section A is subjected to a

compressive force P as shown in thefigure

The intensity of the tangential stress on theoblique plane is given by

a. P sin 2 b. P cos 2


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4 of 17c. P/2 sin2 d. P/2 cos 2

17. The ratio of the torsional moment s ofresistance of a solid circular shaft ofdiameter D, and a hollow circular shafthaving external diameter d and internaldiameter d is given by

a. 4

4 4

D

D d

b. 4 4

4

D d

D

c. 3 3

3

D d

D

d. 3

3 3

D

D d

18. Clapeyrons theorem is applied to

a. Simply supported beam b. Propped cantilever beamc. Fixed & continuous beamd. Continuous beam only

19. The valiration of the hoop stress across thethickness of a thick cylinder isa. linear

b. uniformc. parabolicd. hyperbolic

20. The bulk modulus of elasticity of amaterial is twice its modulus of rigidity.The Poissons ratio of the material isa. 1/7

b. 2/7c. 3/7d. 4/7

21. Match List I with List II and select thecorrect answer :List I

A. Assumption in the theory of simple bending

B. The point at which the bending stressis maximum for any cross-section

C. The point at which the bending stressis zero for an y cross-section

D. The point in the cross-section throughwhich the neutral axis passes

List II1. Neutral axis

2. Centroid3. The plane sections remain plain4. Extreme fibre5. The cross-section is circular

A B C Da. 5 4 1 2

b.

3 1 2 4c. 5 1 2 4d. 3 4 1 2

22. A rectangular beam of width 200 mm anddepth 300 mm is subjected to a shear forceof 200 kN. The maximum shear stress

produced in the beam isa. 10.0 MPa

b. 7.5 MPac. 5.0 MPad. 3.00 MPa

23. A symmetrical channel section is made ofa material which is equally strong intension and compression. It is used as asimply supported beam with its webhorizontal to carry vertical loads. It willa. be strongest if the web is used as top

face b. be strongest if the web is used as

bottom facec. be equally strong in (a) and (b) above

d. not be possible to state which of theabove statements is correct24. For which of the following conditions, the

virtual work should be zero according tothe Principle of virtual work ?1. A body moving with constant

acceleration2. A body rotating with constant speed3. A body in equilibrium4. A body moving with constant

momentumSelect the correct answer using the codesgiven below :a. 1 only

b. 1 and 2c. 3 onlyd. 4 only

25.


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p1 and p 2 are two equal tensile principalstresses. On the plane AB inclined at 45 o to the plane of p 1 a. the shear stress is a maximum

b. the normal stress is zeroc. the shear stress is zerod. the normal stress is maximum

26.

In the symmetrical channel section shownin the figure, which point is likely to be theshear center ?a. A

b. Bc. Cd. D

27.

The force in member AB isa. 5kN compression

b. 2 kN compressionc. Zerod. 7 kN compression

28.

The force in the member BD of the trussshown in the figure given above isa. 4 kN tensile

b. 4 kN compressive

c. Zerod. 12 kN compressive

29. A free body diagram of a body showsa. A body isolated from all external

effects without considering its ownweight

b. A body isolated form its surroundingsand all external forces acting on it

c. A body isolated from its surroundingsand all external actions on it

d. A body isolated fro its surroundingsand all internal forces acting on it

30. Neglecting self weight, which of thefollowing beams will have points ofcontraflexure?a. A simply supported beam with

uniformly distributed load over part ofthe structure

b. An overhanging beam with loadingonly over supported span and not onoverhangs

c. Fixed beam subjected to concentratedload

d. Cantilever beam subjected touniformly varying load with zero loadat free end

31.

The absolute maximum bending momentin the beam is

a. 2P a b. 5P a

c. 4P a d. 7P a

32. Which one of the following pairs is NOTcorrectly matched ?Boundary conditions Eulers buckling

of column load

a. Both ends hinged : 2El / l 2 b. Both ends fixed : 4 2El / l 2 c. One end fixed and : El / 4 l 2

other end free


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6 of 17d. One end fixed and : 2 2El/ l 2

the other hinged33. For a two-hinged parabolic arch, V= is

sum of the vertical forces on the left handside of the section. H is the horizontalthrust. If is the angle of tangent at the

point on arch with the horizontal, theshearing force at section form left handside is given bya. Vx sin H cos

b. Vx cos H sin c. Vx sin + H cos d. Vx cos + H sin

34. In the truss shown in the figure givenabove, which one of the followingmembers has no force induced in it ?a. CD

b. CEc. CFd. DF

35.

A joint of a roof truss has been isolatedand shown in Figure (i). the force polygonfor the joint is the shown in Figure (ii).Member a is in compression, member dis in tension.Which one of the following is correct ?

a. Both b and c are in tension b. Both b and c are in compressionc. b is in tension, c is in compressiond. b is in compression, c is in tension

36. Match List I with List II and select thecorrect answer :List I

A. Torque-twist relationship for a circularshaft

B. Strain energy of elastic torsionC. Circumferential shear stressD. Maximum shearing stress due to

combined torsion and direct stressList II

1. 1/2 2 24 2. Gr / l

3. (GJ/2 l) 2

4. GJl

A B C Da. 2 3 4 1

b. 4 1 2 3c. 2 1 4 3d. 4 3 2 1

37. A beam (El = constant) of span L issubjected to clockwise moments M at boththe ends A and B. The rotation of end Aworks out to bea. ML / 2 El

b. ML / 3 Elc. ML / 4 Eld. ML / 6 El

38. Consider the following statements :

The principle of superposition is notapplicable when1. the material does not obey Hookes

law2. the effect of temperature changes are

taken into consideration3. the structure is being analysed for the

effect of support settlementWhich of the above statements is/arecorrect ?


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8/17

8 of 171. a particular case of Castiglianos first

theorem2. a particular case of Castiglianos

second theorem3. applicable only when the redundant

supports do not yield4. applicable even when the redundant

supports yieldSelect the correct answer using the codesgiven below :a. 1 and 3

b. 1 and 4c. 2 and 3d. 2 and 4

47. Two shafts having same length andmaterial are joined in series and subjectedto a torque of 10 kNm. If the ratio of their

diameters is 2 : 1, then the ratio of theirangles of twist isa. 16 : 1

b. 2 : 1c. 1 : 2d. 1 : 16

48. Resilience isa. Maximum strain energy

b. Recoverable strain energyc. Total potential energy

d. Shear strain energy(Beyond Hookeslaw)49. The slenderness ratio of a compression

member in the context of Rankinesformula is defined as

a. lengthleast lateral dimension

b. effective lengthleast radius of gyration

c. effective length

least lateral dimension

d. lengthleast radius of gyration

50. A propped cantilever of span 4 m is fixedat A and propped at B. The beam carries au.d.l. of 1 t/m over the entire span. Thereaction at B isa. 5/2 t

b. 2 tc. 1 t

d. 3/2 t51. The elements that are normally subjected

to combined bending and axial forces area. struts in reinforced concrete members

b. the member s in long span bridgesc. columns in framed structuresd. space truss members

52. Which among the following assumptionsare made in the design of roof trusses ?1. Roof truss is restrained by the

reactions2. Axes of the members meeting at a joint

intersect at a common point3. riveted joints act as frictionless hinges4. Loads act normal to roof surfaceSelect the correct answer using the codesgiven below :

a. 1, 2 and 4 b. 2, 3 and 4c. 1, 3 and 4d. 1, 2 and 3

53. The effective flange area in tension of a palte girder is equal toa. A f

b. wf A

A2

c. w

f

AA 8

d. wf A

A6

where A f is the area of each flange and Awis the web area

54. The maximum deflection in timber beamsor joints should not be greater thana. span / 300

b. span / 325c. span / 360d. span / 380

55. A simply supported rectangular beam ofspam 20.0 m is subjected to u.d.l. Theminimum effective depth required to checkdeflection of this beam, when modificationfactor for tension and compression are 0.9and 1.1 respectively, will bea. 2.0 m

b. 1.8 mc. 1.3 m


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9/17

9 of 17d. 1.0 m

56. Prestressing of indeterminate structureshould take care of the following :1. High strength concrete2. High tensile steel3. Load balancing4. particle safety factorsSelect the correct answer using the codesgiven below :a. 1 and 3

b. 2, 3 and 4c. 1, 2 and 4d. 1, 2, 3 and 4

57. For a portai truss column fixed at the base,the point of contraflexure is assumed ata. a distance mid-way between the base

and the foot of the knee brace b. a distance mid-way between the base

and top of the columnc. the foot of the knee braced. quarter distance between base and top

of the column58. As the span of a bridge increases, the

impact factora. decreases

b. increasesc. remains constantd. increases up to a critical value of span

and then decreases59. A gantry girder has been provided with the

following section shown in the followingfigures

In which case(s), the allowable stresses in being compression is equal to that intension ?Select the correct answer using the codsgiven below :a. 1 and 2

b. 2 and 3c. 4 onlyd. 3 only

60. The effective length of the member shownin the figure is equal toa. 1.2 L

b. 1.5 Lc. 2.0 Ld. 3.0 L

61. In a compression member, plate elementmay buckle locally before the entiremember fails. To avoid this, which of thefollowing recommendations are made ?1. Thickness of members is taken in

terms of lengths of compressionmembers

2. length of element is increased3. length of member is increased4. Outstand is decreasedSelect the correct answer using the codesgiven below :a. 1 , 2 and 3

b. 1, 2 and 4c. 2 and 3d. 1 and 4

62. Figure given below shows a fixed beam ofsteel

At the point of collapse, the value of load

W will bea. 10 M p / L

b. 15 M p / Lc. 20 M p / Ld. 25 M p / L

63.


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11/17

11 of 17d. both longitudinal and transverse

reinforcement72. The codal provisions recommend

minimum shear reinforcement in the formof stirrups in the beams :1. to cater for any torsion in the beam

section

2. to improve ductility of the cross-section

3. to improve dowel action oflongitudinal tension bars

Select the correct answer using the codesgiven below :a. 1, 2 and 3 are correct

b. 2 and 3 are correctc. Only 1 is correctd. Only 2 is correct

73. The specified span to depth ratios of beams satisfying the limits of verticaldeflection are for spans up to 10 m.1. for higher spans, these are to be

modified by multiplying the ratio y(10/span in metrer)

2. For higher spans, these are to bemodified by multiplying the ratios by(span in metre/10)

3. They get further modified dependingon area and type of tension

reinforcement4. However, they of not change further

with the area and type of compressionreinforcement

Select the correct answer using the codesgiven below :a. 1 and 3 are correct

b. 2 and 3 are correctc. 1 and 4 are correctd. 2 and 4 are correct

74. When the tendon of a rectangular prestresses beam of cross-sectional area Ais subjected to a load W through thecentroidal longitudinal axis of beam,(where M = maximum bending Momentand Z = section modulus) then themaximum stress in the beam section will

be

a. W MA Z

b. W MA Z

c. A ZW M

d. A ZW M

75. Which of the following deformations areimportant in case of deep beams whencompared to flexure along?a. shear

b. axialc. torsionald. bearing

76. The maximum depth of neutral axis for a beam with ad as the effective depth, inlimit state method of design for Fe 415steel isa. 0.46 d

b. 0.48 dc. 0.50 dd. 0.53 d

77. The load factor to be used for plasticdesign of steel structures for dead load andimposed load isa. 2.2

b. 2.0c. 1.7d. 1.5

78. Match List I with list II and select thecorrect answer :List IA. A rubber bulldozer gives better outputB. A bulldozer mounted on crawler tracks

gives better outputC. A rubber tyred bulldozerD. A crawler mounted bulldozerList II

1. While working on earth or soft ground2. Results in lesser operator fatigues3. Has greater use and versatility on jobs4. When working on a hard surface

A B C Da. 2 1 4 3

b. 4 1 2 3c. 2 3 4 1d. 4 3 2 1


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12 of 1779. A compression member has a centre to

centre length of 4.0 m. It is fixed at oneend and hinged at the other end. Theeffective length of the column isa. 4.0 m

b. 3.2 mc. 2.8 md. 2.6 m

80. Deck bridges have the main disadvantagethata. their compression flanges have no

lateral support b. the traffic is exposed to windsc. it is not possible to provide portal

bracingsd. the road level has to be very high

81. If cbc is permissible compressive stress in

flexural compression in N/mm2

in service,the modular ratio is of the order ofa. 280/ 3 cbc

b. 280 / 4 cbc c. 19d. 13

82. In a Pedestal, the factor by which theeffective length should not exceed the leastlateral dimension isa. 2

b. 3c. 4d. 5

83. The losses in prestress in pre-tensioningsystem are due to1. elastic deformation of concrete when

wires are tensioned successively2. friction3. shrinkage and creep of concreteSelect the correct answer using the codesgiven below :a. 1, 2 and 3

b. 2 and 3c. 1 aloned. 3 alone

84. Match list I with List II and select thecorrect answer :List I(Type of mixers)A. Tilting, drum type concrete mixersB. Pan type concrete mixers

C. Portable tilting drum type concretemixers

D. Portable non-tilting drum type concretemixers

List II(Characteristics)1. Are very efficient especially with stiff

mixes and the drum rotates about avertical axis

2. Are meant for small, scattered jobsusing small-sized aggregates

3. Are fed from on side of the drum whilethe mixed concrete is discharged fromthe other end and the drum rotatesabout a horizontal axis

4. Are best suited for large sizedaggregates as in mass concrete

A B C Da. 2 3 4 1

b. 4 1 2 3c. 2 1 4 3d. 4 3 2 1

85. Match List I with List II and select thecorrect answer :List I(Vibrators)A. Vibrating tablesB. Screed vibratorsC. Internal vibrators

D.

Form vibratorsList II(Application)1. For thin tunnel linings2. for mass concrete work3. Fro precasting concrete members4. for thin slabs, pavements and floors

A B C Da. 3 1 2 4

b. 2 4 3 1c. 3 4 2 1

d. 2 1 3 486. An equipment of purchased of Rs. 40, 000

and is fully depreciated by straight linemethod over 8 years. Considering intereston average annual cost at 15 p.a., thecharge on the Company due to use of thisequipment, if made uniformly over the 8years, isa. Rs. 5,750

b. Rs. 8,000


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13 of 17c. Rs. 8,350d. Rs. 14,000

87. Which of the following are thedisadvantages of non-tilting type concretemixers ?1. They are not favoured when large

sized aggregates are use d2. Mixing of the concrete occurs through

both rolling and pulling from buckets3. Content of fines is increased4. They are no easy to cleanSelect the correct answer using the codesgiven below :a. 1, 2 and 3

b. 1, 3 and 4c. 1, 2 and 4d. 2, 3 and 4

88. Match List I with List II and select thecorrect answer :List I (Type of cranes)A. Hydraulic craneB. Electric overhead craneC. Travelling bridge craneD. Hammerhead craneList II(Characteristics)1. Has legs moving on tracks laid on the

floor

2. Has cantilever arms on both sides3. Has the unique advantage that the

boom length and the angle can bechanged during operation

4. Has three-way motion in mutually perpendicular directions

A B C Da. 3 2 1 4

b. 1 4 3 2c. 3 4 1 2

d. 1 2 3 489. The norm for providing standby equipment

for one shift operation isa. 5%

b. 10%c. 20%d. 30%

90.

In the network given above, the maximumnumber of shovels and dumpers requiredarea. 6 shovels and 14 dumpers on days 9

and 10 b. 24 shovels and 10 dumpers on days 3

and 4c. 30 shovels and 90 dumpers on all daysd. 10 shovels and 24 dumpers on day s3

and 4

91. For cleaning and grubbing of constructionsite of 15000 m3 area, a bulldozer is usedwhich has effective width of 2 m of the

blade and an average speed of 2.5 kmph. Ifhiring charges of bulldozer are Rs. 500/hr.,then cost per m 2 isa. Rs. 10

b. Rs. 12c. Rs. 15d. Rs. 18

92.

In the network given above, the critical path of activities isa. A-C-H

b. B-E-F-Hc. A-D-E-F-H

d. A-D-E-G93. The probability that the load on a

scaffolding will exceed the design load of3 tonnes is 0.15. At the same time, the

probability that the strength of thescaffolding will be more than 3 tonnes is0.85. The probability that the scaffoldingwill fail isa. 0.2775

b. 0.1275c. 0.0225


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14 of 17d. 0.0020

94. The optimum duration is thea. the summation of normal-durations of

each activity in the project b. summation of the normal-duration of

activities on critical pathc. one, which givens minimum total cost

for completing the projectd. summation of crash-time of activities

on critical path95. In order to investigate a method of least-

cost scheduling, which of the followingassumptions are made ?1. the planned duration of an activity can

be any whole day value between thenormal and crash duration

2. the direct cost of an activity is linear between he normal and crash directcosts

3. The overhead costs I linear during theentire project.

Select the correct answer using the codesgiven below :a. 1 and 2

b. 1 and 3c. 2 and 3d. 1, 2 and 3

96. Which one of the following statementsapplies to the declining balance method ofdepreciation accounting?a. Uniform write-off of cost throughout

the service is aimed b. Greater write-off in the early years is

aimedc. Smaller write-off in early years is

aimedd. A varying rate of depreciation is

applied on the basis of marker value ofthe assets

97. In selecting a roller I-section for a simply-supported beam, along with minimumsectional modulus, a minimum value ofspan/depth ratio is also ensured. This isstipulated to ensure thata. the buckling of beam does not take

place b. the shear stress in beam remains within

permissible limit

c. the deflection of beam remains within permissible limit

d. the bending stress in compression iswithin permissible limit

98. Assertion (A) : Trees which have broadleaves and shed in the autumn areclassified as hard woods, while trees

having needle-like leaves, broadlyevergreen are classified as soft woods.Reason (R) : The term hard wood anda. Both A and R are true and R is the

correct explanation of A b. Both A and R are true but R is NOT

the correct explanation of Ac. A is true but R is falsed. A is false but R is true

99. Assertion (A) : Flash set is the stiffeningof the cement paste within a few minutesafter mixing.Reason (R) : Flash set occurs due toinsufficient gypsum to control the rapidreaction of C 3A with water.a. Both A and R are true and R is the



100. Assertion (A) : The amount of cement past should be sufficient to cover thesurface of all particle for proper work-ability and bond.Reason (R) : The water cement ratio isfixed accordingly.a. Both A and R are true and R is the



101. Assertion (A) : the coefficient of friction isthe ratio of limiting frictional force tonormal reaction between two bodies incontact and one body being just on thesliding on the other.Reason (R) : The limiting friction is themaximum value of frictional force, whichcomes in to play, when a body just beginsto slide over the surface of the other body.


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15 of 17a. Both A and R are true and R is the



102. Assertion (A) : The bending moment at asection of a simply supported beam is amaximum.(i) in the case of a concentrated load,where the S.F. changes sign.(ii) in the case of u.d.l where shearingforce is zero.Reason (R) : Actually in both the abovecases shearing force should be zero at thesection of maximum being moment,

because dM/dx = f = 0, to satisfy themaxima condition.a. Both A and R are true and R is the



103. Assertion (A) : The principle of superposition for deflection of beams subjectedto a number of loads can be applied in thecase of large deformation.

Reason (R) : In the principle ofsuperposition, the resultant deflection sdue to each load acting separately.

a. Both A and R are true and R is thecorrect explanation of A

b. Both A and R are true but R is NOTthe correct explanation of A

c. A is true but R is falsed. A is false but R is true

104. Assertion (A) : In the working stress

design method the internal stresses at asection of member are computed forfactored loads.

Reason (R) : In the working stress designmethod it is ensured that the internalstresses due to working loads are less thanthe allowable stresses.




105. Assertion (A) : The salvage value is less inthe initial period of the equipment andincreases as the equipment ages.

Reason (R) : The salvage value of anequipment is the actual amount the at can

be realized on a trade-in for a replacementmachine.




106. Assertion (A) : Knots, one of the commonfeatures in wood, are associated with the

beginning of branches.Reason (R) : Knots greatly improve theworkability.




107. Assertion (A) : More uniformly burnt bricks are obtained form a downwarddraught kiln.

Reason (R) : The bricks are laid in acircular form in their kiln.




108. Assertion (A) : The higher percentage ofTricalcium silicate in cement results inrapid hardening with an early gain instrength at a higher heat of hydration.

Reason (R) : A higher percentage ofdicalcium silicate in cement results inrapid slow hardening and less heat ofhydration and greater resistance tochemical attack.


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17/17

17 of 17internal force which tries to burst thecylinder.




115. Assertion (A) : When attempting resourceoptimization, activity-time cost trade offinformation could be gainfully employed.

Reason (R) : Generally, as activity time isextended beyond the minimum costduration, splitting of the activity durationis always possible.




116. Assertion (A) : The more economicalalternative of replacing an equipment is toredesign and improve the equipment.

Reason (R) : Redesigning and improvingan equipment can result in labour saving.




117. Assertion (A) : Area of BMD represented

by X in the figure given above equals2/3M l .

Reason (R) : Area of the figure represented by Y equals m l /3.




118. Assertion (A) : In the analysis of pin- jointed plane frames, the force method isgenerally preferable to the displacementmethod.

Reason (R) : The degrees of freedom for pin-jointed plane frames are generallymuch larger than the degrees of staticindeterminacy and thus force methodrequires less formulation and computationthan the displacement method.



c. A is true but R is false

d. A is false but R is true119. Assertion (A) : In a built-in beam, the

centroids of the fixed moment diagram andthe free moment diagram will lie on thesame vertical line.

Reason (R) : the second theorem of areamoment states that, if two points on theelastic line of the beam are at the samelevel, the moment of area of BMDenclosed between these point about anyone of these point is zero.




120. Assertion (A) : The strength of a beamdoes not depend upon the sectional area

provided.

Reason (R) : It depends upon the

disposition of the sectional area of the beam in relation to its neutral axis.




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