Steel Structures MCQs Mock test Set-1

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1.

The pin of rocker bearing is designated for

All of these

Bearing

Bending

Shear

2.

As per IS code, the maximum pitch of rivets in compression flange (thickness 't') of a built up beam is

Lesser of 250 mm and 12t

Lesser of 200 mm and 16t

Lesser of 200 mm and 12t

Lesser of 250 mm and 16t

3.

A steel plate is 30 cm wide and 10 mm thick. A rivet of nominal diameter of 18 mm is driven. The net sectional area of plate is

32.42 m²

18.00 m²

28.20 m²

28.05 m²

4.

The single angle sections are used for

Single plane trusses

Trusses having gusset plates in one plane

Small trusses and bracing

All of these

5.

In a tension member, when one or more than one rivet hole is off the line, then the failure of plate depends upon

diameter of rivet hole

all of these

gauge of rivets

pitch of rivets

6.

Rolled steel T-sections are used

a) To transmit bracket loads to the columns

c) both a) and b)

d) none of these

b) with flat strips to connect plates in the steel rectangular tanks

7.

Bolts are most suitable to carry

Bending

Shear

Axial tension

Shear and bending

8.

The most efficient section for a given beam for a given cross-sectional area is

Circular

Channel

Hollow circular

I-section

9.

The type of rolled steel section mainly used as structural member is

Rolled steel I-sections

Rolled steel channel section

All of these

Rolled steel T-section

10.

The heaviest I-section for same depth is

ISLB

ISHB

ISMB

ISWB

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11.

A rolled I-section provides

Large amount of inertia about X-axis with less cross-sectional area

Large moment of resistance as compared to the other sections

Greater lateral stability

All of these

12.

The dead loads

(b) do not vary in magnitude

(a) do not change their position

(d) change their position

(c) Both (a) and (b)

13.

The main advantage of a steel member is that it

is gas and water tight

has long service life

has high strength

all of these

14.

Diameter of a bolt hole is usually taken as

Nominal diameter of bolt

Nominal diameter + 1.5 mm

Gross diameter of bolt

Nominal diameter + 2.0 mm

15.

Bearing Stiffness are provided at the

None of these

a) Support

b) Point of application of concentrated load

Both a) and b)

16.

The common section used in lacing is

All of these

Rolled steel flat

Rolled angle

Rolled channel

17.

As per Indian standards, rolled steel I-sections are classified into

Five series

Four series

Seven series

Six series

18.

For a rivet of 20 mm diameter, the diameter of hole will be taken as

18.5 mm

21 mm

19 mm

21.5 mm

19.

Rivets are generally specified by

Length of the shank

Width of head

Diameter of the hole

Diameter of the shank

20.

The permissible stresses in rivets under wind load condition as per IS: 800 can be exceeded by about

25%

15%

50%

33%

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21.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Chemical composition different from mild steel

Percentage elongation less than that of mild steel

Definite yield value

22.

The built-up sections are used because they provide

Large cross-sectional area

Sufficient large radius of gyration

All of these

Special shape and depth

23.

Rolled steel flats designated by 50 ISF 8 means that the flat is of

50 mm thick and 8 mm length

50 mm length and 8 mm thick

50 mm width and 8 mm thick

50 mm thick and 8 mm width

24.

The live loads

(d) do not vary in magnitude

(c) both (a) and (b)

(b) vary in magnitude

(a) change their position

25.

An angle section can be used as a purlin when slope of the roof truss is

Greater than 30°

Less than 45°

Between 40° and 70°

Less than 30°

26.

For construction purpose, which of the following grades of steel bar used?

b) Fe 500

None of these

a) Fe 415

Both a) and b)

27.

Which of the following IS code defines the high tensile steel?

IS 1977

IS 961

IS 226

IS 2062

28.

The weight of 1 m² of mild steel is approximately

790 kg

7900 kg

79000 kg

790000 kg

29.

The perforated cover plates are particularly suitable for a built up box section consisting of

Two channel sections

Four channel sections

Four angle sections

Two angle sections

30.

A channel section consists of

Two webs

One web and two flanges

Two flanges

Two webs and two flanges

Steel Structures MCQs Mock test Set-1

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