Steel Structures MCQs Mock test Set-1

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1.

The weight of 1 m² of mild steel is approximately

79000 kg

790 kg

790000 kg

7900 kg

2.

The single angle sections are used for

Trusses having gusset plates in one plane

All of these

Small trusses and bracing

Single plane trusses

3.

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

b) Fe 500

a) Fe 415

None of these

Both a) and b)

4.

Bolts are most suitable to carry

Shear

Bending

Shear and bending

Axial tension

5.

The dead loads

(d) change their position

(a) do not change their position

(b) do not vary in magnitude

(c) Both (a) and (b)

6.

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

Circular

Channel

I-section

Hollow circular

7.

Rivets are generally specified by

Diameter of the shank

Length of the shank

Width of head

Diameter of the hole

8.

The heaviest I-section for same depth is

ISLB

ISWB

ISHB

ISMB

9.

The common section used in lacing is

Rolled channel

Rolled angle

All of these

Rolled steel flat

10.

A rolled I-section provides

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

Greater lateral stability

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11.

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

Less than 30°

Less than 45°

Greater than 30°

Between 40° and 70°

12.

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

33%

15%

25%

50%

13.

Rolled steel T-sections are used

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

d) none of these

a) To transmit bracket loads to the columns

c) both a) and b)

14.

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

19 mm

21.5 mm

21 mm

18.5 mm

15.

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

16.

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

17.

The live loads

(a) change their position

(c) both (a) and (b)

(d) do not vary in magnitude

(b) vary in magnitude

18.

The pin of rocker bearing is designated for

Shear

Bearing

Bending

All of these

19.

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

Seven series

Six series

Five series

Four series

20.

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 250 mm and 16t

Lesser of 200 mm and 12t

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21.

The main advantage of a steel member is that it

has high strength

is gas and water tight

has long service life

all of these

22.

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

All of these

Rolled steel T-section

Rolled steel channel section

Rolled steel I-sections

23.

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

Four channel sections

Two channel sections

Two angle sections

Four angle sections

24.

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

50 mm thick and 8 mm width

50 mm thick and 8 mm length

50 mm width and 8 mm thick

50 mm length and 8 mm thick

25.

The built-up sections are used because they provide

Large cross-sectional area

Special shape and depth

Sufficient large radius of gyration

All of these

26.

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

IS 1977

IS 226

IS 961

IS 2062

27.

A channel section consists of

Two webs

Two flanges

Two webs and two flanges

One web and two flanges

28.

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

29.

Bearing Stiffness are provided at the

Both a) and b)

a) Support

b) Point of application of concentrated load

None of these

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

28.05 m²

18.00 m²

28.20 m²

32.42 m²

Steel Structures MCQs Mock test Set-1

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