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Current Affairs January 2024

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4

Steel tanks are mainly designed for

A. Weight of tank

B. Wind pressure

C. Water pressure

D. Earthquake forces

Correct Answer :

C. Water pressure


Related Questions

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4

To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be

A. < L/3

B. < L/6

C. > L/3

D. > L/6

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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

If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than

A. d

B. 1.25 d

C. 1.5 d

D. 1.75 d

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4

Pick up the correct statement from the following:

A. The ends of a strut, are connected together with two rivets

B. The members of strut will have at least two connections spaced equidistant in their length

C. The members when separated back-to-back, the connecting rivets should pass through solid washer or packing

D. All the above

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4

The tensile strength of mild steel for bolts and nuts should not be less than

A. 32 kg/mm2

B. 36 kg/mm2

C. 40 kg/mm2

D. 44 kg/mm2

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4

Secant formula for direct stress in compression, is applicable only for slenderness ratio upto

A. 120

B. 130

C. 140

D. 150

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4

The bending moment for filler joists at the middle of an intermediate span, is

A. WL²/10

B. - WL²/10

C. - WL²/12

D. WL²/12

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4

The allowable shear stress in the web of mild steel beams decreases with

A. Decrease in h/t ratio

B. Increase in h/t ratio

C. Decrease in thickness

D. Increase in height Where 'h' is height and t is thickness

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4

Lug angle is

A. Used with single angle member

B. Not used with double angle member

C. Used with channel member

D. All the above

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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

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

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 connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of

A. 75 t²/h

B. 125 t3/h²

C. 125 t²/h

D. 175 t²/h Where, t = the web thickness in mm and h = the outstand of stiffener in mm

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4

The actual thickness of butt weld as compared to the thickness of plate is usually

A. More

B. Less

C. Equal

D. None of the above

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4

The main advantage of a steel member, is:

A. Its high strength

B. Its gas and water tightness

C. Its long service life

D. All the above

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4

If the depth of the section of an upper column is smaller than the lower column

A. Filler plates are provided with column splice

B. Bearing plates are provided with column splice

C. Filler plates and bearing plates are provided with column splice

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

Efficiency of a riveted joint is defined as the ratio of

A. Least strength of a riveted joint to the strength of solid plate

B. Greatest strength of a riveted joint to the strength of solid plate

C. Least strength of a riveted plate to the greatest strength of the riveted joint

D. All the above

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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

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

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

A riveted joint may experience

A. Shear failure

B. Shear failure of plates

C. Bearing failure

D. All the above

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4

Working shear stress on the gross area of a rivet as recommended by Indian Standards, is

A. 785 kg/cm2

B. 1025 kg/cm2

C. 2360 kg/cm2

D. None of these

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4

Tacking rivets in compression plates not exposed to the weather, have a pitch not exceeding 300 mm or

A. 16 times the thickness of outside plate

B. 24 times the thickness of outside plate

C. 32 times the thickness of outside plate

D. 36 times the thickness of outside plate

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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

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

In the virtual work method, the virtual quantity is

A. Displacement

B. Load

C. Slope

D. Moment

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4

A fillet weld may be termed as

A. Mitre weld

B. Concave weld

C. Convex weld

D. All the above

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4

The method of design of steel framework for greatest rigidity and economy in weight, is known as

A. Simply design

B. Semi-rigid design

C. Fully rigid design

D. None of these

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4

Bearing stiffener in a plate girder is used to

A. Transfer the load from the top flange to the bottom one

B. Prevent buckling of web

C. Decrease the effective depth of web

D. Prevent excessive deflection