Steel Structures MCQs Mock test Set-1

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1.

A rolled I-section provides

All of these

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

2.

Diameter of a bolt hole is usually taken as

Nominal diameter + 1.5 mm

Nominal diameter of bolt

Gross diameter of bolt

Nominal diameter + 2.0 mm

3.

The live loads

(c) both (a) and (b)

(b) vary in magnitude

(a) change their position

(d) do not vary in magnitude

4.

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

25%

33%

50%

15%

5.

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

Less than 45°

Between 40° and 70°

Less than 30°

Greater than 30°

6.

Rivets are generally specified by

Width of head

Diameter of the shank

Diameter of the hole

Length of the shank

7.

Bolts are most suitable to carry

Bending

Shear and bending

Axial tension

Shear

8.

A channel section consists of

One web and two flanges

Two webs and two flanges

Two flanges

Two webs

9.

The built-up sections are used because they provide

Large cross-sectional area

All of these

Sufficient large radius of gyration

Special shape and depth

10.

Bearing Stiffness are provided at the

a) Support

None of these

b) Point of application of concentrated load

Both a) and b)

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11.

The main advantage of a steel member is that it

is gas and water tight

has long service life

has high strength

all of these

12.

The single angle sections are used for

Small trusses and bracing

Single plane trusses

All of these

Trusses having gusset plates in one plane

13.

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

14.

The heaviest I-section for same depth is

ISHB

ISWB

ISLB

ISMB

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

all of these

pitch of rivets

diameter of rivet hole

16.

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

Seven series

Six series

Five series

Four series

17.

The pin of rocker bearing is designated for

All of these

Bearing

Bending

Shear

18.

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

19.

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

21.5 mm

18.5 mm

21 mm

19 mm

20.

The weight of 1 m² of mild steel is approximately

790000 kg

7900 kg

790 kg

79000 kg

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21.

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

22.

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

IS 961

IS 2062

IS 1977

IS 226

23.

High yield deformed bars have a

Percentage elongation less than that of mild steel

Definite yield value

Chemical composition different from mild steel

Percentage elongation more than that of mild steel

24.

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 12t

Lesser of 250 mm and 16t

Lesser of 200 mm and 16t

25.

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

Both a) and b)

b) Fe 500

a) Fe 415

None of these

26.

The dead loads

(c) Both (a) and (b)

(d) change their position

(a) do not change their position

(b) do not vary in magnitude

27.

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

Rolled steel T-section

Rolled steel channel section

All of these

Rolled steel I-sections

28.

The common section used in lacing is

All of these

Rolled steel flat

Rolled angle

Rolled channel

29.

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

Hollow circular

Channel

I-section

Circular

30.

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

50 mm width and 8 mm thick

50 mm thick and 8 mm length

50 mm length and 8 mm thick

50 mm thick and 8 mm width

Steel Structures MCQs Mock test Set-1

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