Steel Structures MCQs Mock test Set-1

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1.

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

50 mm thick and 8 mm width

50 mm width and 8 mm thick

50 mm thick and 8 mm length

50 mm length and 8 mm thick

2.

The heaviest I-section for same depth is

ISMB

ISLB

ISWB

ISHB

3.

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

IS 2062

IS 961

IS 1977

IS 226

4.

The weight of 1 m² of mild steel is approximately

79000 kg

790 kg

7900 kg

790000 kg

5.

Rolled steel T-sections are used

a) To transmit bracket loads to the columns

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

c) both a) and b)

d) none of these

6.

The main advantage of a steel member is that it

has long service life

has high strength

is gas and water tight

all of these

7.

The pin of rocker bearing is designated for

Bending

All of these

Shear

Bearing

8.

The common section used in lacing is

Rolled channel

Rolled angle

All of these

Rolled steel flat

9.

Bearing Stiffness are provided at the

None of these

a) Support

b) Point of application of concentrated load

Both a) and b)

10.

Diameter of a bolt hole is usually taken as

Nominal diameter + 1.5 mm

Nominal diameter of bolt

Nominal diameter + 2.0 mm

Gross diameter of bolt

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11.

High yield deformed bars have a

Percentage elongation less than that of mild steel

Chemical composition different from mild steel

Percentage elongation more than that of mild steel

Definite yield value

12.

A channel section consists of

Two webs and two flanges

Two flanges

One web and two flanges

Two webs

13.

A rolled I-section provides

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

Large moment of resistance as compared to the other sections

Greater lateral stability

All of these

14.

Bolts are most suitable to carry

Shear and bending

Axial tension

Bending

Shear

15.

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

Six series

Four series

Five series

Seven series

16.

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

Rolled steel I-sections

Rolled steel T-section

All of these

Rolled steel channel section

17.

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

Between 40° and 70°

Greater than 30°

Less than 45°

Less than 30°

18.

Rivets are generally specified by

Width of head

Diameter of the shank

Length of the shank

Diameter of the hole

19.

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

33%

25%

50%

15%

20.

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

b) Fe 500

None of these

a) Fe 415

Both a) and b)

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21.

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 16t

Lesser of 200 mm and 16t

Lesser of 200 mm and 12t

Lesser of 250 mm and 12t

22.

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

I-section

Hollow circular

Channel

Circular

23.

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

24.

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

all of these

diameter of rivet hole

gauge of rivets

25.

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

Two channel sections

Four angle sections

Four channel sections

Two angle sections

26.

The dead loads

(d) change their position

(b) do not vary in magnitude

(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

28.20 m²

32.42 m²

18.00 m²

28.

The single angle sections are used for

Single plane trusses

Trusses having gusset plates in one plane

All of these

Small trusses and bracing

29.

The live loads

(d) do not vary in magnitude

(c) both (a) and (b)

(a) change their position

(b) vary in magnitude

30.

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

Steel Structures MCQs Mock test Set-1

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