Steel Structures MCQs Mock test Set-1

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1.

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

21 mm

18.5 mm

21.5 mm

19 mm

2.

The dead loads

(a) do not change their position

(d) change their position

(c) Both (a) and (b)

(b) do not vary in magnitude

3.

The live loads

(a) change their position

(c) both (a) and (b)

(b) vary in magnitude

(d) do not vary in magnitude

4.

The built-up sections are used because they provide

Sufficient large radius of gyration

Special shape and depth

Large cross-sectional area

All of these

5.

The weight of 1 m² of mild steel is approximately

790000 kg

7900 kg

79000 kg

790 kg

6.

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

Rolled steel T-section

Rolled steel I-sections

All of these

Rolled steel channel section

7.

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

Circular

Hollow circular

I-section

Channel

8.

The heaviest I-section for same depth is

ISHB

ISWB

ISMB

ISLB

9.

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)

10.

Rolled steel T-sections are used

c) both a) and b)

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

d) none of these

a) To transmit bracket loads to the columns

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11.

The pin of rocker bearing is designated for

Shear

Bending

Bearing

All of these

12.

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

pitch of rivets

all of these

diameter of rivet hole

13.

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

Seven series

Four series

Six series

Five series

14.

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

15.

A rolled I-section provides

Greater lateral stability

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

Large moment of resistance as compared to the other sections

All of these

16.

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

32.42 m²

18.00 m²

28.05 m²

17.

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 12t

Lesser of 200 mm and 16t

Lesser of 250 mm and 12t

Lesser of 250 mm and 16t

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.

Diameter of a bolt hole is usually taken as

Nominal diameter + 2.0 mm

Gross diameter of bolt

Nominal diameter of bolt

Nominal diameter + 1.5 mm

20.

Rivets are generally specified by

Length of the shank

Diameter of the shank

Diameter of the hole

Width of head

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21.

Bolts are most suitable to carry

Shear and bending

Axial tension

Shear

Bending

22.

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

25%

50%

15%

33%

23.

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

Less than 45°

Between 40° and 70°

Greater than 30°

Less than 30°

24.

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

IS 961

IS 1977

IS 226

IS 2062

25.

The common section used in lacing is

Rolled steel flat

Rolled angle

All of these

Rolled channel

26.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Definite yield value

Chemical composition different from mild steel

Percentage elongation less than that of mild steel

27.

A channel section consists of

Two webs

One web and two flanges

Two webs and two flanges

Two flanges

28.

The main advantage of a steel member is that it

all of these

has high strength

is gas and water tight

has long service life

29.

Bearing Stiffness are provided at the

None of these

b) Point of application of concentrated load

a) Support

Both a) and b)

30.

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

Two angle sections

Two channel sections

Four channel sections

Four angle sections

Steel Structures MCQs Mock test Set-1

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