Steel Structures MCQs Mock test Set-1

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1.

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

b) Fe 500

Both a) and b)

None of these

a) Fe 415

2.

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

diameter of rivet hole

pitch of rivets

3.

The common section used in lacing is

All of these

Rolled angle

Rolled channel

Rolled steel flat

4.

The live loads

(a) change their position

(c) both (a) and (b)

(d) do not vary in magnitude

(b) vary in magnitude

5.

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

Hollow circular

Circular

Channel

I-section

6.

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

All of these

Rolled steel I-sections

Rolled steel channel section

Rolled steel T-section

7.

The pin of rocker bearing is designated for

Bending

Shear

Bearing

All of these

8.

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

Four series

Five series

Six series

Seven series

9.

High yield deformed bars have a

Percentage elongation more than that of mild steel

Chemical composition different from mild steel

Percentage elongation less than that of mild steel

Definite yield value

10.

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°

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11.

The built-up sections are used because they provide

Sufficient large radius of gyration

Large cross-sectional area

Special shape and depth

All of these

12.

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 width

50 mm thick and 8 mm length

50 mm length and 8 mm thick

13.

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

14.

Bearing Stiffness are provided at the

a) Support

b) Point of application of concentrated load

Both a) and b)

None of these

15.

The weight of 1 m² of mild steel is approximately

790 kg

79000 kg

7900 kg

790000 kg

16.

The heaviest I-section for same depth is

ISHB

ISLB

ISMB

ISWB

17.

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

18.

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

25%

50%

15%

33%

19.

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 200 mm and 16t

Lesser of 250 mm and 16t

20.

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

21 mm

18.5 mm

19 mm

21.5 mm

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21.

Rivets are generally specified by

Diameter of the hole

Diameter of the shank

Width of head

Length of the shank

22.

A rolled I-section provides

All of these

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

Greater lateral stability

Large moment of resistance as compared to the other sections

23.

The dead loads

(d) change their position

(b) do not vary in magnitude

(a) do not change their position

(c) Both (a) and (b)

24.

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

IS 2062

IS 1977

IS 961

IS 226

25.

Bolts are most suitable to carry

Axial tension

Shear and bending

Shear

Bending

26.

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

27.

The single angle sections are used for

Single plane trusses

Small trusses and bracing

Trusses having gusset plates in one plane

All of these

28.

A channel section consists of

Two webs

One web and two flanges

Two flanges

Two webs and two flanges

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

18.00 m²

28.05 m²

32.42 m²

28.20 m²

30.

The main advantage of a steel member is that it

has high strength

is gas and water tight

all of these

has long service life

Steel Structures MCQs Mock test Set-1

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