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What is the correct answer?

4

In the virtual work method, the virtual quantity is

A. Displacement

B. Load

C. Slope

D. Moment

Correct Answer :

A. Displacement


Related Questions

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4

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

A. 3

B. 5

C. 6

D. 7

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4

The area Ap of cover plates in one flange of a built up beam, is given by

A. Ap = Zreqr + Zbeam/h

B. Ap = Zreqr + Zbeam/A

C. Ap = Zreqr × Zbeam/h

D. Ap = Zreqr - Zbeam/h

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4

In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

A. Fully by direct bearing

B. Fully through fastenings

C. 50% by direct bearing and 50% through fastenings

D. 75% by direct bearing and 25% through fastenings

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4

The ratio of the span L of the filler joists to the depth d from the underside of the joist to the top of the structural concrete, should not exceed

A. 60

B. 45

C. 35

D. 25

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4

In moment resistant connections, the moment resistance of riveted connection depends upon

A. Shear in rivets

B. Compression in rivets

C. Tension in rivets

D. Strength of rivets in bearing

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4

The strength of a riveted lap joint is equal to its

A. Shearing strength

B. Bearing strength

C. Tearing strength

D. Least of (a), (b) and (c)

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4

The rolled steel I-sections are most commonly used as beams because these provide

A. Large moment of inertia with less cross-sectional area

B. Large moment of resistance as compared to other section

C. Greater lateral stability

D. All the above

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4

A circular column section is generally not used in actual practice because

A. It is uneconomical

B. It cannot carry the load safely

C. It is difficult to connect beams to the round sections

D. All of the above

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4

The least dimension in case of a circular column of diameter D is taken as

A. 0.5 D

B. 0.68 D

C. 0.88 D

D. D

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4

Bearing stiffeners are provided at (i) The supports (ii) The mid span (iii) The point of application of concentrated loads The correct answer is

A. Only (i)

B. Both (i) and (ii)

C. Both (i) and (iii)

D. (i), (ii) and (iii)

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4

When the axis of load lies in the plane of rivet group, then the rivets are subjected to

A. Only shear stresses

B. Only tensile stresses

C. Both (A) and (B)

D. None of the above

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4

For the economical design of a combined footing to support two equal column loads, the projections of beams in lower tier are kept such that bending moment under column is equal to

A. Bending moment at the centre of the beam

B. Half the bending moment at the centre of the beam

C. Twice the bending moment at the centre of the beam

D. None of these

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4

Design of a riveted joint, is based on the assumption:

A. Load is uniformly distributed among all the rivets

B. Shear stress on a rivet is uniformly distributed over its gross area

C. Bearing stress in the rivet is neglected

D. All the above

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4

As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into

A. 4 zones

B. 5 zones

C. 6 zones

D. 7 zones

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4

The effective length of a double angle strut with angles placed back to back and connected to both the sides of a gusset plate, by not less than two rivets, is

A. 0.5 L

B. 0.67 L

C. 0.85 L

D. 2 L

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4

According to the Unwin's formula, if t is thickness of the plate in mm, the nominal diameter of the rivet, is

A. d = 1.91 t

B. d = 1.91 t2

C. d = 1.91 √t

D. d = 1.91 t

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4

The heaviest I-section for same depth is

A. ISMB

B. ISLB

C. ISHB

D. ISWB

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4

According to IS Specifications, the maximum pitch of rivets in compression is

A. Lesser of 200 mm and 12 t

B. Lesser of 200 mm and 16 t

C. Lesser of 300 mm and 32 t

D. Lesser of 3 00 mm and 24 t Where t is thickness of thinnest outside plate or angle

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4

The permissible stress in bending for rolled steel I-beams and channels, is

A. 1500 kg/cm2

B. 1575 kg/cm2

C. 945 kg/cm2

D. 1650 kg/cm2

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4

The shape factor of an isosceles triangle for bending about the axis parallel to the base is:

A. 1.5

B. 1.7

C. 2.0

D. 2.34

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4

Outstanding length of a compression member consisting of a channel, is measured as

A. Half of the nominal width

B. Nominal width of the section

C. From the edge to the first row of rivets

D. None of these

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4

When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate).

A. 8 t

B. 16 t

C. 24 t

D. 32 t

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4

The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2, is

A. 16 kg/cm2

B. 18 kg/cm2

C. 20 kg/cm2

D. 22 kg/cm2

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4

Column footing is provided

A. To spread the column load over a larger area

B. To ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil

C. To distribute the column load over soil through the column footing

D. All the above

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4

In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80 tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is

A. 6

B. 7

C. 8

D. 9

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4

The thickness of the web of a mild steel plate girder is less than d/200. If only one horizontal stiffener is used, it is placed at

A. The neutral axis of the section

B. 2/3rd of the depth of the neutral axis from the compression flange

C. 2/5th of the depth of the neutral axis from the compression flange

D. 2/5th of the height of the neutral axis from tension flange

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4

Long column is one

A. Which is more than 3 m long

B. Whose lateral dimension is less than 25 cm

C. Which is free at its top

D. Which has a ratio of effective length and least lateral dimension more than 15

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4

Area of openings for buildings of large permeability is more than

A. 10% of wall area

B. 20% of wall area

C. 30% of wall area

D. 50% of wall area

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4

Load factor is

A. Always equal to factor of safety

B. Always less than factor of safety

C. Always greater than factor of safety

D. Sometimes greater than factor of safety

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4

In double lacing, the thickness t of flat lacing is

A. t < 1/40 th length between inner end rivets

B. t < 1/50 th length between inner end rivets

C. t < 1/60 th length between inner end rivets

D. t < 1/70 th length between inner end rivets