Steel Structures MCQs Mock test Set-1

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1.

Bolts are most suitable to carry

Shear

Bending

Axial tension

Shear and bending

2.

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

3.

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

diameter of rivet hole

gauge of rivets

all of these

4.

The single angle sections are used for

Single plane trusses

Trusses having gusset plates in one plane

Small trusses and bracing

All of these

5.

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

6.

The common section used in lacing is

Rolled channel

Rolled angle

All of these

Rolled steel flat

7.

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

50 mm width and 8 mm thick

50 mm length and 8 mm thick

50 mm thick and 8 mm length

50 mm thick and 8 mm width

8.

The live loads

(d) do not vary in magnitude

(a) change their position

(b) vary in magnitude

(c) both (a) and (b)

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.

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

15%

33%

25%

50%

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11.

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

Four series

Six series

Five series

Seven series

12.

Rivets are generally specified by

Diameter of the hole

Diameter of the shank

Length of the shank

Width of head

13.

The built-up sections are used because they provide

All of these

Special shape and depth

Sufficient large radius of gyration

Large cross-sectional area

14.

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

15.

A channel section consists of

One web and two flanges

Two webs and two flanges

Two flanges

Two webs

16.

The pin of rocker bearing is designated for

All of these

Bending

Shear

Bearing

17.

The heaviest I-section for same depth is

ISHB

ISWB

ISMB

ISLB

18.

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

19.

The dead loads

(a) do not change their position

(c) Both (a) and (b)

(b) do not vary in magnitude

(d) change their position

20.

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

21.5 mm

19 mm

18.5 mm

21 mm

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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 12t

Lesser of 250 mm and 16t

Lesser of 200 mm and 12t

Lesser of 200 mm and 16t

22.

Diameter of a bolt hole is usually taken as

Gross diameter of bolt

Nominal diameter of bolt

Nominal diameter + 1.5 mm

Nominal diameter + 2.0 mm

23.

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

Hollow circular

Circular

I-section

Channel

24.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Definite yield value

Percentage elongation less than that of mild steel

Chemical composition different from mild steel

25.

Bearing Stiffness are provided at the

Both a) and b)

b) Point of application of concentrated load

a) Support

None of these

26.

Rolled steel T-sections are used

d) none of these

c) both a) and b)

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

a) To transmit bracket loads to the columns

27.

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

Less than 45°

Greater than 30°

Between 40° and 70°

Less than 30°

28.

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

IS 226

IS 2062

IS 961

IS 1977

29.

The weight of 1 m² of mild steel is approximately

790000 kg

790 kg

79000 kg

7900 kg

30.

The main advantage of a steel member is that it

has long service life

is gas and water tight

has high strength

all of these

Steel Structures MCQs Mock test Set-1

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