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Current Affairs January 2024

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4

The beam outside a wall upto floor level above it, is known as

A. Rafter

B. Purlin

C. Spandrel beam

D. Lintel

Correct Answer :

C. Spandrel beam


Related Questions

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4

The diameter of a bolt hole is taken as the nominal diameter of the bolt plus

A. 1.0 mm

B. 1.2 mm

C. 1.4 mm

D. 1.6 mm

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4

Generally the purlins are placed at the panel points so as to avoid

A. Axial force in rafter

B. Shear force in rafter

C. Deflection of rafter

D. Bending moment in rafter

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4

Select the correct statement

A. Material cost of a rivet is higher than that of a bolt

B. Tensile strength of a bolt is lesser than that of a rivet

C. Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings

D. Riveting is less noisy than bolting

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4

The effective length L of a simply supported beam with ends restrained against torsion, and also the ends of compression flange partially restrained against lateral bending, is given by

A. L = span

B. L = 0.85 span

C. L = 0.75 span

D. L = 0.7 span

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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

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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 side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula

A. T = WL/4R

B. T = WR/8L

C. T = WL/8R

D. T = WL/2R

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4

The allowable stress in axial tension for rolled I-sections and channels, is taken as

A. 1420 kg/cm2

B. 1500 kg/cm2

C. 2125 kg/cm2

D. 1810 kg/cm2

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4

The net area of round bars to resist the tension, is the area of cross section at

A. Mid-section

B. Root of the thread

C. Difference of (a) and (b)

D. None of these

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4

Minimum spacing of vertical stiffeners is limited to

A. d/4

B. d/3

C. d/2

D. 2d/3 Where d is the distance between flange angles

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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

Factor of safety is the ratio of

A. Yield stress to working stress

B. Tensile stress to working stress

C. Compressive stress to working stress

D. Bearing stress to working stress

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4

Other conditions being same, the load factor in indeterminate structures is

A. Equal to load factor in determinate structures

B. More than the load factor in determinate structures

C. Less than the load factor in determinate structures

D. Unpredictable

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4

A riveted joint many experience

A. Tearing failure of plates

B. Splitting failure of plates at the edges

C. Bearing failure of rivets

D. All the above

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4

On eccentrically loaded columns, the equivalent axial load may be obtained by

A. Adding the axial load, eccentric load, the product of the bending moment due to eccentric load and the appropriate bending factor

B. Adding the axial load and eccentric load and subtracting the product of bending moment and appropriate bending factor

C. Dividing the sum of axial load and eccentric load by the product of the bending moment and appropriate bending factor

D. None of these

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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

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

Live load

A. Varies in magnitude

B. Varies in position

C. Is expressed as uniformly distributed load

D. All the above

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4

Slenderness ratio of a compression member is

A. Moment of inertia/Radius of gyration

B. Effective length/Area of cross-section

C. Radius of gyration/Effective length

D. Radius of gyration/ Area of cross-section

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4

Bolts are most suitable to carry

A. Shear

B. Bending

C. Axial tension

D. Shear and bending

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4

The diameter of base of conical flare of a steel stack is

A. Less than d

B. Equal to d

C. More than d

D. Any of the above Where d is the diameter of the cylindrical part

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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

Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).

A. fb = W/(b + h√3)tw

B. fb = W/(b + 2h√3)tw

C. fb = W/(b + 2h√2)tw

D. fb = W/(b + h√2)tw

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4

The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web, is less than

A. 45

B. 55

C. 62

D. 82

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4

For a column of height L fixed in position and direction both at its top and bottom, its effective length, is

A. L

B. 1/√2 × L

C. ½ L

D. 2L

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4

When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

A. Black bolt

B. Ordinary unfinished bolt

C. Turned and fitted bolt

D. High strength bolt

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4

The gross diameter of a rivet is the diameter of

A. Cold rivet before driving

B. Rivet after driving

C. Rivet hole

D. None of these

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4

Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is

A. 1.5 L

B. 0.67 L

C. 0.85 L

D. 2 L

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4

The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:

A. 4.5 mm

B. 6 mm

C. 8 mm

D. 10 mm

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4

A beam may be designed as a cased beam if

A. Section is of double open channel form with the webs not less than 40 mm apart

B. Overall depth and width of the steel section do not exceed 750 and 450 mm respectively

C. Beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2

D. All the above