Steel Structures MCQs Mock test Set-1

Page 1 of 3

1.

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

2.

The common section used in lacing is

Rolled steel flat

Rolled channel

All of these

Rolled angle

3.

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

All of these

Rolled steel T-section

Rolled steel I-sections

Rolled steel channel section

4.

The heaviest I-section for same depth is

ISLB

ISHB

ISMB

ISWB

5.

The single angle sections are used for

Trusses having gusset plates in one plane

All of these

Small trusses and bracing

Single plane trusses

6.

High yield deformed bars have a

Chemical composition different from mild steel

Definite yield value

Percentage elongation more than that of mild steel

Percentage elongation less than that of mild steel

7.

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

Seven series

Five series

Six series

Four series

8.

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

21 mm

21.5 mm

18.5 mm

19 mm

9.

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

Four channel sections

Two angle sections

Two channel sections

Four angle sections

10.

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

IS 961

IS 226

IS 2062

IS 1977

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11.

A channel section consists of

Two webs

Two flanges

Two webs and two flanges

One web and two flanges

12.

A rolled I-section provides

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

Greater lateral stability

13.

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

14.

Rivets are generally specified by

Diameter of the hole

Width of head

Diameter of the shank

Length of the shank

15.

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

pitch of rivets

all of these

16.

Bearing Stiffness are provided at the

Both a) and b)

b) Point of application of concentrated load

a) Support

None of these

17.

The main advantage of a steel member is that it

has high strength

has long service life

all of these

is gas and water tight

18.

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

Greater than 30°

Between 40° and 70°

Less than 45°

Less than 30°

19.

The weight of 1 m² of mild steel is approximately

79000 kg

790 kg

7900 kg

790000 kg

20.

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

Both a) and b)

a) Fe 415

b) Fe 500

None of these

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21.

The built-up sections are used because they provide

All of these

Special shape and depth

Large cross-sectional area

Sufficient large radius of gyration

22.

The dead loads

(b) do not vary in magnitude

(d) change their position

(a) do not change their position

(c) Both (a) and (b)

23.

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

32.42 m²

28.05 m²

28.20 m²

24.

The live loads

(c) both (a) and (b)

(a) change their position

(b) vary in magnitude

(d) do not vary in magnitude

25.

The pin of rocker bearing is designated for

Bending

All of these

Bearing

Shear

26.

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

Circular

I-section

Hollow circular

Channel

27.

Rolled steel T-sections are used

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

a) To transmit bracket loads to the columns

c) both a) and b)

d) none of these

28.

Bolts are most suitable to carry

Shear and bending

Bending

Axial tension

Shear

29.

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

15%

25%

33%

50%

30.

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 16t

Lesser of 250 mm and 12t

Lesser of 200 mm and 12t

Steel Structures MCQs Mock test Set-1

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