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4

A major beam in a building structure, is known as

A. A girder

B. A floor beam

C. A main beam

D. All the above

Correct Answer :

D. All the above


Related Questions

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4

According to IS : 800-1962 the permissible bending stress in steel slab plates, is

A. 1500 kg/cm2

B. 1420 kg/cm2

C. 2125 kg/cm2

D. 1890 kg/cm2

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4

The basic wind speed is specified at a height 'h' above mean ground level in an open terrain. The value of 'h' is

A. 10 m

B. 20 m

C. 25 m

D. 50 m

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4

Which of the following conditions is to be satisfied both in elastic and plastic analysis?

A. Equilibrium condition

B. Yield condition

C. Plastic moment condition

D. Mechanism condition

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4

The stress in the wall of a thin cylinder subjected to internal pressure, is

A. Hoop compression

B. Shear

C. Torsional shear

D. Hoop tension

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4

The permissible stress to which a structural member can be subjected to, is known as

A. Bearing stress

B. Working stress

C. Tensile stress

D. Compressive stress

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4

The most commonly used sections in lateral system to carry shear force in built up columns, are

A. Rolled steel flats

B. Rolled angles

C. Rolled channels

D. All the above

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4

Water pressure in a 80 cm water main is 10 kg/cm2. The minimum thickness of the metal required for the water main, not to be stressed more than 200 kg/cm2, is

A. 1 cm

B. 1.5 cm

C. 2 cm

D. 2.5 cm

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4

A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than

A. d/250 for structural steel

B. d/225 for high tensile steel

C. Both (c) and (b)

D. Neither (a) nor (b)

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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 live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as

A. 0.65 kN/m²

B. 0.75 kN/m²

C. 1.35 kN/m²

D. 1.50 kN/m²

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4

In a grillage footing, the maximum shear force occurs at the

A. Edge of grillage beam

B. Centre of base plate

C. Centre of grillage beam

D. Centre of base plate

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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

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

The permissible bearing stress in steel, is

A. 1500 kg/cm2

B. 1890 kg/cm2

C. 2025 kg/cm2

D. 2340 kg/cm2

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4

If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is

A. 6

B. 8

C. 10

D. 15

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4

When two plates are placed end to end and are joined by two cover plates, the joint is known as

A. Lap joint

B. Butt joint

C. Chain riveted lap joint

D. Double cover butt joint

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4

In rolled steel beams, shear force is mostly resisted by

A. Web only

B. Flanges only

C. Web and flanges together

D. None of these

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4

The maximum axial load which is just sufficient to keep a column in a small deflected shape, is called

A. Crippling load

B. Buckling load

C. Critical load

D. All the above

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4

Web crippling generally occurs at the point where

A. Bending moment is maximum

B. Shearing force is minimum

C. Concentrated loads act

D. Deflection is maximum

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4

The distance between the outer faces of flanges of a plate girder, is known as

A. Overall depth

B. Clear depth

C. Effective depth

D. None of these

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4

The channels get twisted symmetrically with regard to its axis

A. Parallel to flanges

B. Parallel to web

C. Perpendicular to flanges

D. Perpendicular to web

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4

If P is the wind pressure in kg/cm2, v is the velocity in km/hour and K is a constant of proportionality, then

A. P = K/v2

B. v = K/P2

C. P = Kv2

D. P = Kv

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4

Effective sectional area of a compression member is:

A. Gross sectional area - area of rivet hole

B. Gross sectional area + area of rivet hole

C. Gross sectional area × area of rivet hole

D. Gross sectional area + area of rivet hole

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4

If d is the distance between the flange angles, the vertical stiffeners in plate girders without horizontal stiffeners, are spaced at a distance not less than

A. 0.15 d

B. 0.22 d

C. 0.33 d

D. 0.44 d

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4

Lacing bars in a steel column should be designed to resist

A. Bending moment due to 2.5% of the column load

B. Shear force due to 2.5% of the column load

C. 2.5% of the column load

D. Both (A) and (B)

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4

The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as

A. Unstiffened seated connection

B. Stiffened seated connection

C. Seated connection

D. None of these

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4

When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from

A. Each web

B. Each flange

C. Each web or one hole from each flange whichever is more

D. Each web or one hole from each flange whichever is less

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4

Economical depth of a plate girder corresponds to

A. Minimum weight

B. Minimum depth

C. Maximum weight

D. Minimum thickness of web

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4

For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as

A. Zero

B. ±0.2 p

C. ± 0.5 p

D. ±0.7 p Where p is basic wind pressure

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4

According to IS: 800, in the Merchant Rankine formula the value of imperfection index (n) is

A. 1.0

B. 1.4

C. 1.8

D. 2.0