Steel Structures MCQs Mock test Set-1

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1.

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

Six series

Seven series

Five series

Four series

2.

The weight of 1 m² of mild steel is approximately

790 kg

7900 kg

790000 kg

79000 kg

3.

The common section used in lacing is

All of these

Rolled angle

Rolled channel

Rolled steel flat

4.

Bolts are most suitable to carry

Shear and bending

Shear

Bending

Axial tension

5.

The built-up sections are used because they provide

Special shape and depth

Large cross-sectional area

Sufficient large radius of gyration

All of these

6.

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

50 mm width and 8 mm thick

50 mm thick and 8 mm length

50 mm thick and 8 mm width

50 mm length and 8 mm thick

7.

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

b) Fe 500

Both a) and b)

None of these

a) Fe 415

8.

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

I-section

Channel

Circular

Hollow circular

9.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Definite yield value

Percentage elongation less than that of mild steel

Chemical composition different from mild steel

10.

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

Rolled steel I-sections

All of these

Rolled steel T-section

Rolled steel channel section

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11.

The dead loads

(a) do not change their position

(d) change their position

(b) do not vary in magnitude

(c) Both (a) and (b)

12.

A channel section consists of

Two flanges

One web and two flanges

Two webs

Two webs and two flanges

13.

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

pitch of rivets

gauge of rivets

all of these

diameter of rivet hole

14.

The live loads

(d) do not vary in magnitude

(a) change their position

(b) vary in magnitude

(c) both (a) and (b)

15.

Bearing Stiffness are provided at the

None of these

b) Point of application of concentrated load

a) Support

Both a) and b)

16.

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

Greater than 30°

Less than 30°

Less than 45°

Between 40° and 70°

17.

Rolled steel T-sections are used

c) both a) and b)

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

d) none of these

a) To transmit bracket loads to the columns

18.

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

Four angle sections

Two angle sections

Two channel sections

Four channel sections

19.

A rolled I-section provides

Greater lateral stability

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

All of these

Large moment of resistance as compared to the other sections

20.

The heaviest I-section for same depth is

ISLB

ISWB

ISMB

ISHB

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21.

The single angle sections are used for

Small trusses and bracing

All of these

Trusses having gusset plates in one plane

Single plane trusses

22.

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 12t

Lesser of 250 mm and 12t

Lesser of 250 mm and 16t

Lesser of 200 mm and 16t

23.

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

50%

25%

33%

15%

24.

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

IS 2062

IS 961

IS 1977

IS 226

25.

Diameter of a bolt hole is usually taken as

Nominal diameter of bolt

Gross diameter of bolt

Nominal diameter + 1.5 mm

Nominal diameter + 2.0 mm

26.

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

27.

The pin of rocker bearing is designated for

All of these

Shear

Bending

Bearing

28.

The main advantage of a steel member is that it

has long service life

is gas and water tight

all of these

has high strength

29.

Rivets are generally specified by

Diameter of the shank

Diameter of the hole

Width of head

Length of the shank

30.

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

28.20 m²

18.00 m²

28.05 m²

Steel Structures MCQs Mock test Set-1

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