Civil Engineering MCQs

Page No. 86

Which of the following sections should preferably be used at places where torsion occurs ?


a angle section

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bchannel section

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c box type section

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dany of the above

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View Answer box type section

The allowable tensile stress in structural mild steel plates for steel tank is assumed as________________?


a95.0 MPa on net area

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b105.5 MPa on net area

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c 105.5 MPa on gross area

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d150.0 MPa on gross area

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View Answer 105.5 MPa on net area

The number of seismic zones in which the country has been divided are_________________?


a3

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b5

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c 6

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d 7

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View Answer 5

Area of openings for buildings of large permeability is more than_________________?


a10% of wall area

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b 20% of wall area

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c30% of wall area

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d50% of wall area

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View Answer 20% of wall area

The risk coefficient k, depends on__________________?


a mean probable design life of structures

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bbasic wind speed

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c both (A) and (B)

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dnone of the above

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View Answer both (A) and (B)

The internal pressure coefficient on walls for buildings with large permeability is taken as_______________?


a± 0.2

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b±0.5

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c± 0.7

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d0

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View Answer ± 0.7

The relation between intensity of wind pressure p and velocity of wind V is taken as_______________?


a pa V

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b paV2

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cp a (1/V)

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dpaV”2

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View Answer paV2

Generally the purlins are placed at the panel points so as to avoid__________________?


a axial force in rafter

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bshear force in rafter

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cdeflection of rafter

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dbending moment in rafter

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Normally, the angle of roof truss with asbestos sheets should not be less than_______________?


a26’/2°

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b 30°

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c 35°

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d40°

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View Answer 30°

The range of economical spacing of trusses varies from________________?


aL/3 to L/5

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bL/4to2L/5

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c L/3 to L/2

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d2L/5 to 3L/5 where L is span

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View Answer L/3 to L/5

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