Steel Structures MCQs Mock test Set-1

Page 1 of 3

1.

Rivets are generally specified by

Diameter of the hole

Diameter of the shank

Width of head

Length of the shank

2.

The live loads

(a) change their position

(c) both (a) and (b)

(b) vary in magnitude

(d) do not vary in magnitude

3.

The common section used in lacing is

Rolled angle

Rolled steel flat

Rolled channel

All of these

4.

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

Less than 30°

Between 40° and 70°

Greater than 30°

Less than 45°

5.

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

Rolled steel T-section

All of these

Rolled steel I-sections

Rolled steel channel section

6.

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

28.20 m²

18.00 m²

28.05 m²

32.42 m²

7.

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

25%

50%

33%

15%

8.

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

all of these

pitch of rivets

diameter of rivet hole

9.

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

Channel

I-section

Hollow circular

Circular

10.

The single angle sections are used for

Trusses having gusset plates in one plane

Single plane trusses

All of these

Small trusses and bracing

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11.

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 250 mm and 16t

Lesser of 200 mm and 12t

12.

The heaviest I-section for same depth is

ISMB

ISHB

ISLB

ISWB

13.

Bearing Stiffness are provided at the

a) Support

None of these

Both a) and b)

b) Point of application of concentrated load

14.

Bolts are most suitable to carry

Axial tension

Shear

Shear and bending

Bending

15.

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

21 mm

19 mm

21.5 mm

18.5 mm

16.

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

None of these

b) Fe 500

a) Fe 415

Both a) and b)

17.

The pin of rocker bearing is designated for

Bending

Shear

Bearing

All of these

18.

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

19.

The built-up sections are used because they provide

Special shape and depth

Large cross-sectional area

All of these

Sufficient large radius of gyration

20.

The dead loads

(a) do not change their position

(d) change their position

(b) do not vary in magnitude

(c) Both (a) and (b)

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21.

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

Four angle sections

Two angle sections

Four channel sections

Two channel sections

22.

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

IS 226

IS 961

IS 2062

IS 1977

23.

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

50 mm thick and 8 mm length

50 mm width and 8 mm thick

50 mm thick and 8 mm width

50 mm length and 8 mm thick

24.

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

25.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Chemical composition different from mild steel

Definite yield value

Percentage elongation less than that of mild steel

26.

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

Six series

Seven series

Five series

Four series

27.

A channel section consists of

One web and two flanges

Two flanges

Two webs and two flanges

Two webs

28.

The weight of 1 m² of mild steel is approximately

790000 kg

790 kg

7900 kg

79000 kg

29.

Diameter of a bolt hole is usually taken as

Nominal diameter of bolt

Gross diameter of bolt

Nominal diameter + 2.0 mm

Nominal diameter + 1.5 mm

30.

A rolled I-section provides

Large moment of resistance as compared to the other sections

All of these

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

Greater lateral stability

Steel Structures MCQs Mock test Set-1

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