Steel Structures MCQs Mock test Set-1

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1.

Rolled steel T-sections are used

c) both a) and b)

a) To transmit bracket loads to the columns

d) none of these

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

2.

A channel section consists of

Two flanges

Two webs and two flanges

Two webs

One web and two flanges

3.

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 12t

Lesser of 250 mm and 12t

Lesser of 200 mm and 16t

4.

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

Six series

Four series

Seven series

Five series

5.

The main advantage of a steel member is that it

all of these

is gas and water tight

has long service life

has high strength

6.

High yield deformed bars have a

Chemical composition different from mild steel

Definite yield value

Percentage elongation less than that of mild steel

Percentage elongation more than that of mild steel

7.

The pin of rocker bearing is designated for

Bearing

Bending

Shear

All of these

8.

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

Rolled steel channel section

Rolled steel I-sections

Rolled steel T-section

All of these

9.

A rolled I-section provides

Large moment of resistance as compared to the other sections

Greater lateral stability

All of these

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

10.

Rivets are generally specified by

Width of head

Diameter of the shank

Length of the shank

Diameter of the hole

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11.

Diameter of a bolt hole is usually taken as

Gross diameter of bolt

Nominal diameter + 2.0 mm

Nominal diameter of bolt

Nominal diameter + 1.5 mm

12.

The common section used in lacing is

Rolled angle

Rolled channel

Rolled steel flat

All of these

13.

The live loads

(a) change their position

(d) do not vary in magnitude

(b) vary in magnitude

(c) both (a) and (b)

14.

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

50%

33%

25%

15%

15.

The weight of 1 m² of mild steel is approximately

790000 kg

79000 kg

7900 kg

790 kg

16.

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

Less than 45°

Less than 30°

Greater than 30°

Between 40° and 70°

17.

The built-up sections are used because they provide

All of these

Sufficient large radius of gyration

Large cross-sectional area

Special shape and depth

18.

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

50 mm thick and 8 mm length

50 mm length and 8 mm thick

50 mm width and 8 mm thick

50 mm thick and 8 mm width

19.

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

a) Fe 415

None of these

Both a) and b)

b) Fe 500

20.

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

Two angle sections

Four angle sections

Four channel sections

Two channel sections

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21.

Bolts are most suitable to carry

Shear and bending

Bending

Shear

Axial tension

22.

The heaviest I-section for same depth is

ISLB

ISMB

ISHB

ISWB

23.

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

I-section

Channel

Hollow circular

Circular

24.

Bearing Stiffness are provided at the

Both a) and b)

a) Support

None of these

b) Point of application of concentrated load

25.

The single angle sections are used for

Trusses having gusset plates in one plane

All of these

Small trusses and bracing

Single plane trusses

26.

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

IS 961

IS 1977

IS 226

IS 2062

27.

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

28.

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

18.5 mm

21.5 mm

21 mm

19 mm

29.

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

30.

The dead loads

(c) Both (a) and (b)

(b) do not vary in magnitude

(a) do not change their position

(d) change their position

Steel Structures MCQs Mock test Set-1

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