Steel Structures MCQs Mock test Set-1

Page 1 of 3

1.

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

None of these

a) Fe 415

b) Fe 500

Both a) and b)

2.

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

Four angle sections

Four channel sections

Two channel sections

Two angle sections

3.

Bearing Stiffness are provided at the

None of these

a) Support

b) Point of application of concentrated load

Both a) and b)

4.

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

Four series

Five series

Seven series

Six series

5.

High yield deformed bars have a

Chemical composition different from mild steel

Percentage elongation more than that of mild steel

Percentage elongation less than that of mild steel

Definite yield value

6.

The common section used in lacing is

All of these

Rolled steel flat

Rolled channel

Rolled angle

7.

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 12t

Lesser of 250 mm and 16t

Lesser of 200 mm and 16t

8.

A channel section consists of

Two webs and two flanges

One web and two flanges

Two flanges

Two webs

9.

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

21 mm

19 mm

18.5 mm

21.5 mm

10.

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

IS 961

IS 226

IS 1977

IS 2062

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11.

The heaviest I-section for same depth is

ISWB

ISHB

ISLB

ISMB

12.

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

13.

The pin of rocker bearing is designated for

All of these

Bending

Bearing

Shear

14.

The weight of 1 m² of mild steel is approximately

790 kg

79000 kg

7900 kg

790000 kg

15.

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°

16.

Bolts are most suitable to carry

Bending

Shear and bending

Axial tension

Shear

17.

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

gauge of rivets

diameter of rivet hole

all of these

pitch of rivets

18.

The single angle sections are used for

All of these

Trusses having gusset plates in one plane

Small trusses and bracing

Single plane trusses

19.

A rolled I-section provides

Greater lateral stability

All of these

Large moment of resistance as compared to the other sections

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

20.

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

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21.

Rolled steel T-sections are used

d) none of these

c) both a) and b)

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

a) To transmit bracket loads to the columns

22.

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

Hollow circular

Circular

I-section

Channel

23.

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

50%

25%

15%

33%

24.

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

50 mm width and 8 mm thick

50 mm length and 8 mm thick

50 mm thick and 8 mm length

50 mm thick and 8 mm width

25.

Diameter of a bolt hole is usually taken as

Nominal diameter + 1.5 mm

Nominal diameter + 2.0 mm

Gross diameter of bolt

Nominal diameter of bolt

26.

The dead loads

(b) do not vary in magnitude

(d) change their position

(a) do not change their position

(c) Both (a) and (b)

27.

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

28.05 m²

18.00 m²

32.42 m²

28.20 m²

28.

The live loads

(a) change their position

(b) vary in magnitude

(c) both (a) and (b)

(d) do not vary in magnitude

29.

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

Rolled steel T-section

Rolled steel I-sections

Rolled steel channel section

All of these

30.

Rivets are generally specified by

Length of the shank

Width of head

Diameter of the hole

Diameter of the shank

Steel Structures MCQs Mock test Set-1

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