Steel Structures MCQs Mock test Set-1

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1.

A rolled I-section provides

Large moment of resistance as compared to the other sections

Greater lateral stability

All of these

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

2.

The weight of 1 m² of mild steel is approximately

79000 kg

790 kg

7900 kg

790000 kg

3.

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

Two angle sections

Four channel sections

Four angle sections

Two channel sections

4.

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

b) Fe 500

None of these

Both a) and b)

a) Fe 415

5.

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

Lesser of 200 mm and 16t

Lesser of 250 mm and 12t

Lesser of 200 mm and 12t

Lesser of 250 mm and 16t

6.

The pin of rocker bearing is designated for

All of these

Shear

Bearing

Bending

7.

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

50 mm length and 8 mm thick

50 mm thick and 8 mm width

50 mm width and 8 mm thick

50 mm thick and 8 mm length

8.

The heaviest I-section for same depth is

ISWB

ISMB

ISHB

ISLB

9.

The common section used in lacing is

All of these

Rolled steel flat

Rolled angle

Rolled channel

10.

Rivets are generally specified by

Length of the shank

Diameter of the shank

Width of head

Diameter of the hole

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11.

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

pitch of rivets

all of these

gauge of rivets

12.

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

21 mm

21.5 mm

19 mm

18.5 mm

13.

The single angle sections are used for

Trusses having gusset plates in one plane

All of these

Single plane trusses

Small trusses and bracing

14.

Bolts are most suitable to carry

Bending

Shear and bending

Axial tension

Shear

15.

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

Six series

Five series

Four series

Seven series

16.

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

Circular

I-section

Hollow circular

Channel

17.

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

18.00 m²

28.20 m²

28.05 m²

32.42 m²

18.

The dead loads

(d) change their position

(c) Both (a) and (b)

(a) do not change their position

(b) do not vary in magnitude

19.

Diameter of a bolt hole is usually taken as

Gross diameter of bolt

Nominal diameter + 2.0 mm

Nominal diameter + 1.5 mm

Nominal diameter of bolt

20.

Rolled steel T-sections are used

c) both a) and b)

a) To transmit bracket loads to the columns

d) none of these

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

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21.

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

Between 40° and 70°

Less than 30°

Less than 45°

Greater than 30°

22.

A channel section consists of

Two flanges

One web and two flanges

Two webs

Two webs and two flanges

23.

Bearing Stiffness are provided at the

Both a) and b)

a) Support

b) Point of application of concentrated load

None of these

24.

The built-up sections are used because they provide

Sufficient large radius of gyration

Special shape and depth

All of these

Large cross-sectional area

25.

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

All of these

Rolled steel I-sections

Rolled steel T-section

Rolled steel channel section

26.

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

33%

15%

50%

25%

27.

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

IS 2062

IS 1977

IS 961

IS 226

28.

High yield deformed bars have a

Chemical composition different from mild steel

Percentage elongation more than that of mild steel

Definite yield value

Percentage elongation less than that of mild steel

29.

The main advantage of a steel member is that it

is gas and water tight

all of these

has long service life

has high strength

30.

The live loads

(b) vary in magnitude

(d) do not vary in magnitude

(a) change their position

(c) both (a) and (b)

Steel Structures MCQs Mock test Set-1

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