Practice – FAQ’s from IS Codes (IS456, IS875, IS1893, IS800…)

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1 / 205

As per IS 456 in Annexure it is explained how to obtain compressive reinforcement in doubly reinforced beam

Annexure 1

Annexure 1.1

Annexure 1.2

Annexure 1.3

2 / 205

As per IS 456 in Annexure it is explained when do we provide compression reinforcement in beam

when mu exceeds mu limiting annexure d – 1.2

when mu exceeds mu limiting annexure e – 1.2

when mu exceeds mu limiting annexure f – 1.2

when mu exceeds mu limiting annexure g – 1.2

3 / 205

As per IS 456 what are the formulas for calculating moment of resistance of rectangular sections without compression reinforcement

Annexure g – 1.1 a

Annexure g – 1.1 b

Annexure g – 1.1 c

Annexure g – 1.1 b & c

4 / 205

As per IS 456 what is the formula to determine the depth of neutral axis for a rectangular section without compression reinforcement

Annexure g – 1.1.a

Annexure g – 1.1 b

Annexure g – 1.1 c

Annexure g – 1.1 b & c

5 / 205

As Per IS 456 what is the % of mid span tension reinforcement that we have to extend to the supports

Annexure a – 2.1.1

Annexure b – 2.1.1

Annexure c – 2.1.1

Annexure d – 2.1.1

6 / 205

As per IS 46 how many panel types are there for calculating moment coefficient in design of slabs

7 Types table 26

8 Types table 26

9 Types Table 26

10 Types table 26

7 / 205

As per IS 456 in which annexure is it expalined what is one way slab

Annexure d – 1.10

Annexure d – 1.11

Annexure d – 1.12

Annexure d – 1.13

8 / 205

AS per IS 456 when is it not required to provide torsion reinforcement in slab

Annexure d – 1.9

Annexure d – 1.10

Annexure d – 1.11

Annexure d – 1.12

9 / 205

As per IS 456 how do we provide torsion reinforcement in slab

Annexure c – 1.8

Annexure d – 1.8

Annexure e – 1.9

Annexure f – 1.9

10 / 205

As per IS 456 how do we take care of negative moments at a discontinues edge of a slab panel

Annexure d – 1.6

Annexure d – 1.7

Annexure d – 1.8

Annexure d – 1.9

11 / 205

As per IS 456 how do we provide tension reinforcement in slabs

Annexure a – 1.4 & 1.5

Annexure b – 1.4 & 1.5

Annexure c – 1.4 & 1.5

Annexure d – 1.4 & 1.5

12 / 205

As per IS 456 what are the max bending moments in slabs in x and y directions

Annexure a – 1.1

Annexure b – 1.1

Annexure c – 1.1

Annexure d – 1.1

13 / 205

In Which Clause of IS 456 is it expalined what is enhanced shear strength of sections closed to supports

40.2

40.4

40.5

40.7

14 / 205

In Which Clause of IS 456 is it expalined how do we calculate spacing of shear reinforcement for vertical stirrups

40.2

40.4

40.6

40.8

15 / 205

In Which Clause of IS 456 is it expalined how do we arrive at the shear strength to be carried by stirrups

vus = vu-vc

vus = uc-vv

vus = cu-vv

vus – uc-cu

16 / 205

In Which Clause of IS 456 is it expalined how do we provide shear reinforcement if tow-v exceeds tow-c

38.4

40.4

42.4

44.2

17 / 205

In Which table of IS 456 is it expalined where do we find the value of max shear stress of concrete in beams with shear reinforcement

Table 5

Table 15

Table 20

Table 25

18 / 205

In Which table of IS 456 is it expalined where do we find the value of design shear strength of concrete in beams without shear reinforcement

Table 15

Table 17

Table 19

Table 21

19 / 205

In Which Clause of IS 456 is it expalined what is the formula for nominal shear stress in beams of uniform depth

39.1

40.1

41.1

42.1

20 / 205

In Which Clause of IS 456 is it expalined what are the additional moments to be calculated inn case of slender compression members

39.1

39.3

39.5

39.7

21 / 205

In Which Clause of IS 456 is it expalined what is equation for design of short column in compression with biaxial bending

39.5

39.6

40.5

40.6

22 / 205

In Which Clause of IS 456 is it expalined what is equation for design of short column in compression

39.3

39.4

39.5

39.6

23 / 205

In Which Clause of IS 456 is it expalined what are the assumptions for design using limit state of collapse for compression

37.1

38.1

39.1

40.1

24 / 205

In Which Clause of IS 456 is it expalined what are the assumptions for design using limit state of collapse for flexure

36.1

37.1

38.1

29.1

25 / 205

In Which Clause of IS 456 is it expalined how do we design slab spacing in two directions

36.1.2

37.1.2

38.1.2

39.1.2

26 / 205

In Which Clause of IS 456 is it expalined what is redistribution of moments in continues beams and frames

35.1.1

37.1.1

39.1.1

41.1.1

27 / 205

In Which Clause of IS 456 is it expalined for assign the strength of structure what partial safety factors should we take for concrete and steel

36.4.2.1

36.5.2.1

36.6.2.1

36.7.2.1

28 / 205

In Which table of IS 456 is it expalined what are the partial safety factors for loads for limit state of copalse and limit state of serviceability

Table 17

Table 18

Table 19

Table 20

29 / 205

In Which Clause of IS 456 is it defined characteristic load

36.2

37.2

38.2

39.2

30 / 205

In Which Clause of IS 456 is it expalined what is characteristic strength of concrete

36.1

36.4

37.1

37.4

31 / 205

In Which Clause of IS 456 is it expalined what is limit state of claps and limit state of serviceability

35.2

36.2

37.2

38.2

32 / 205

In Which Clause of IS 456 is it expalined what is limit state design

33.1

35.1

37.1

39.1

33 / 205

In Which Clause of IS 456 is it expalined what is the min reinforcement and spacing for design of footing

34.5.1

34.5.3

35.5.1

35.5.3

34 / 205

In Which Clause of IS 456 is it expalined what is the nominal reinforcement for footings greater than 1m depth

33.5.1

33.5.2

34.5.2

35.5.2

35 / 205

In Which Clause of IS 456 is it expalined what is the permissible bearing stress we concede while design of footings

0.45 fck 32.4 clause

0.45 fck 33.4 clause

0.45 fck 34.4 clause

0.45 fck 35.4 clause

36 / 205

In Which Clause of IS 456 is it expalined where do we calculate the highest bending moment for isolated footings

34.2.2.2

34.2.3.2

34.2.4.2

34.2.5.2

37 / 205

In Which Clause of IS 456 is it expalined what is the min thickness at the edge of the footing

34.1.1

34.1.2

35.1.2

36.1.2

38 / 205

In Which Clause of IS 456 is it expalined that beyond what thickness should we provide steel in two layers for shear walls

32.4.1

32.4.2

32.5.1

32.5.4

39 / 205

In Which Clause of IS 456 is it expalined what are the min requirements for reinforcement of shear walls

31.5

31.7

32.3

32.5

40 / 205

In Which Clause of IS 456 is it expalined what is the max effective height to thickness ratio in rcc walls

32.2.3

32.2.4

32.2.5

32.2.6

41 / 205

In Which Clause of IS 456 is it expalined what is the min thickness of rcc wall

31.1

32.1

33.1

34.1

42 / 205

In Which Clause of IS 456 is it expalined how do we design concrete walls

Section 3 or Annexure b

Section 4 or Annexure b

Section 5 or Annexure b

Section 6 or Annexure b

43 / 205

In Which Clause of IS 456 is it expalined what is the max spacing of bars in a flat slab

31.5.1

31.6.1

31.7.1

31.8.1

44 / 205

In Which Clause of IS 456 is it expalined what is the permissible shear stress in flat slabs

31.5.2

31.5.3

31.6.2

31.6.3

45 / 205

In Which Clause of IS 456 is it expalined what is the critical section for shear in flat slabs

30.4

30.6

31.4

31.6

46 / 205

In Which Clause of IS 456 is it expalined what are the method of analyses and design of flat slab

30.4 & 30.5

31.4 & 31.5

32.4 & 32.5

33.4 & 33.5

47 / 205

In Which Clause of IS 456 is it expalined what is difference between drop and column head in flat slab

30.2.2 & 3

30.3.2 & 3

31.2.2 & 3

31.3.2 & 3

48 / 205

In Which Clause of IS 456 is it expalined what is the min thickness of a flat slab

30.2.1

31.2.1

32.2.1

33.2.1

49 / 205

In Which Clause of IS 456 is it expalined what is middle strip in flat slab

30.1.1

31.1.1

32.1.1

33.1.1

50 / 205

As per IS 456 in which clause it is explained what is column strip and flat slab

32.1.1

29.1.1

30.1.1

31.1.1

51 / 205

As per IS 456 in which clause it is explained what is a flat slab

30.1

31.1

32.1

33.1

52 / 205

As per IS 456 in which clause it is explained how to provide negative reinforcement in deep beam

29.3.2

29.4.2

29.5.2

29.6.2

53 / 205

As per IS 456 in which clause it is explained how to provide positive reinforcement in deep beam

29.3.1

29.3.2

29.3.3

29.3.4

54 / 205

In which clause of IS 456 is it explained what is a deep beam

28.1

29.1

30.1

31.1

55 / 205

As per IS 456 in which clause the length of the structure beyond which we provide expansion joint is explained

25.2

26.2

27.2

28.2

56 / 205

In which clause of IS 456 expansion joints are explained

25.1

26.1

27.1

28.1

57 / 205

What is the min dia of laterail ties in columns in IS 456

26.5.3.3.C1

26.5.3.3.C2

26.5.3.3.C3

26.5.3.3.C4

58 / 205

What should be the pitch of lateral ties in columns in IS 456

26.5.3.3.C1

26.5.3.3.C2

26.5.3.3.C3

26.5.3.3.C4

59 / 205

What is the min longitudinal reinforcment in caes of pedistals in IS 456

0.10% of pedistal CS Area

0.15% of pedistal CS Area

0.20% of pedistal CS Area

0.12% of pedistal CS Area

60 / 205

What is the max spacing of longitudinal bars along the perifery of the column as per IS 456

150 mm

200 mm

250 mm

300 mm

61 / 205

What is the min dia of longitudinal bar for columns as per IS 456

10 mm

11 mm

12 mm

13 mm

62 / 205

What are the min number of longitudinal bars to be provided for rectangular column and circular column as per IS 456

4 & 4

4 & 5

4 & 6

4 & 7

63 / 205

What is the max longitudinal reinforcment for columns in IS 456

26.5.3.1

26.5.3.2

26.5.3.3

26.5.3.4

64 / 205

What is the min longitudinal reinforcment for columns as per IS 456

26.5.3.1

26.5.3.2

26.5.3.3

26.5.3.4

65 / 205

What is the max diameter of bars used for design of slabs in IS 456

Slab thichness by 4

Slab thickness by 2

Slab thickness by 8

Slab thickness by 6

66 / 205

Which clause do we use to understand the min reinforcment in slab to be provided as per IS 456

23.5.2.1

24.5.2.1

25.5.2.1

26.5.2.1

67 / 205

Which clause of IS 456 do we use to understand the min shear reinforcment in beam

26.5.1.6

27.5.1.6

28.5.1.6

29.5.1.6

68 / 205

What is the max spacing of shear reinforcemnt in beam as per clause 26.5.1.5 in IS 456

0.55

0.65

0.75

0.85

69 / 205

Which clause of IS 456 is usded to understand side face reinforcment in beam

26.4.1.3

26.5.1.3

26.4.2.3

26.5.1.4

70 / 205

Which clause of IS 456 do we use to understand the MAx area of a compression reinforcment as per IS 456

26.5.1.2

26.5.2.2

26.5.3.2

26.5.4.2

71 / 205

As per IS 456 Which Clause do we use to find the max area of tension reinforcemnt in beams

26.5.1.1.A

26.5.1.1.B

26.5.1.1.C

Both a and c

72 / 205

Which clause of IS 456 do we reffer to understand the min area of tension reinforcment in beam

26.5.1.1.A

26.5.1.1.B

26.5.1.1.C

Both a and c

73 / 205

Which clause of IS 456 do we reffer to understand the nominal cover to reinforcment

26.4.1

26.4.2.1

26.4.2.2

All of the above

74 / 205

Which clause of IS 456 do we use to understand the max distance between the bars in tension

24.3.3

25.3.3

26.3.3

27.3.3

75 / 205

As per IS 456 which clause do we use to understand the min spacing between the individual bars

26.3.2.A

26.3.2.B

26.3.2.C

All of the above

76 / 205

Which clauses from IS 456 do we use to cartail tensial reinforcment in Flexural members

24.2.3.1 to 24.2.3.5

25.2.3.1 to 25.2.3.5

26.2.3.1 to 26.2.3.5

27.2.3.1 to 27.2.3.5

77 / 205

What is the code for detailing earthquake resitant construction

IS 13902

IS 19302

IS 13920

IS 19320

78 / 205

Which clauses from IS 456 do we use to understand the min excentricity for design of columns

22.4

23.4

24.4

25.4

79 / 205

Which clauses from IS 456 do we use to define the slenderness limits for columns for restrained and unrestrained?

25.3.1

25.3.2

Both a and b

None of the above

80 / 205

As per IS 456 What is the effective length of compression members?

Annexure B Table 28

Annexure C TABLE 28

Annexure D Table 28

Annexure E TABLE 28

81 / 205

From IS 456 which clause do we use to get the unsupported length of a compression member?

23.1.3

24.5.3

25.1.3

26.1.3

82 / 205

In IS 456 in which Figure can we see the slab loads gets distributed on to beams?

Fig 7

Fig 24.5

Both a and b

None of the above

83 / 205

In IS 456 which clause do we use to understand what is a short column and long column?

24.1.2

25.1.2

26.1.2

27.1.2

84 / 205

Which Clause do we use to call a member as a column as per IS 456?

24.1.1

24.2.1

25.1.1

25.2.1

85 / 205

What is the Span/overall depth ratios for slabs of slabs upto 3.5m for Mild steel and HYSD steel in IS 456?

20.3 Note 2

22.5 Note 2

24.1 Note 2

26.2 Note 2

86 / 205

Which clause do we reffer while Calcualting the span to effective depth ratios of slabs spanning in two directions, which span should be used as per IS 456?

20.1 Note 1

22.1 Note 1

24.1 Note 1

26.1 Note 1

87 / 205

Which clause do we use to understand the slenderness limits for beams to ensure lateral stability?

22.3

23.3

24.3

25.3

88 / 205

What are the limiting values of the span/depth ratio to be satisfied for horizontal deflection of beam/slab for spans over 10m, as per IS 456 which clause do we use?

23.2.1.B

24.2.1.B

25.2.1.B

26.2.1.B

89 / 205

What are the limiting values of the span/depth ratio to be satisfed for vertical deflection of beams/slabs for a span of 10m as per IS 456 which clause do we use?

23.2.1.A

24.2.1.A

25.2.1.A

26.2.1.A

90 / 205

As per IS 456 which clause do we use to limiting value of defliection for horizontal members

21.2

22.2

23.2

24.2

91 / 205

Which clauses from IS 456 do we use to find teh effective width of flange of T beams and L beams

22.1.2

23.1.2

24.1.2

25.1.2

92 / 205

Which clauses from IS 456 do we use to assume the salb as a compression flange of a T beam or L beam

21.1.1

22.1.1

23.1.1

24.1.1

93 / 205

Which clauses from IS 456 do we use to calcualte the effective depth of a beam

94 / 205

Which clauses from IS 456 do we use to understand the redistribution of moments

22.7

37.1.1

Both a and b

None of these

95 / 205

Which clauses from IS 456 do we use to see the critical section for shear

22.3.2

22.4.2

22.5.2

22.6.2

96 / 205

For monolithic construction, where shall be the moments computed for the design of the members?

Face of the supports

Centre of the supports

25cm from face of supports

50cm from face of supports

97 / 205

BM & SF Coefficients in Table 12 & 13 of IS456 are valid for frames having spans which do not differ more than..

15% of the longest span

15% of the shortest span

25% of the longest span

25% of the shortest span

98 / 205

BM & SF Coefficients in Table 12 & 13 of IS456 are valid for frames with..

3 spans or more

4 Spans or more

1 Span

Fixed Beam

99 / 205

Which clause from IS 456 is the arrangement of the live load is discussed?

22.4.1.A

23.4.1.A

24.4.1.A

25.4.1.A

100 / 205

In the analysis of a continuous Frame, the effective span of a member is arrived as?

Centre to centre distance.

Outer Edge to Outer Edge distance.

Inner Edge to Inner Edge

None of the above

101 / 205

In which clause the effective span of a cantiliver beam or slab is discussed in IS456?

22.2.A

22.2.B

22.2.C

22.2.D

102 / 205

In which clause the effective span of a continues beam or slab is discussed in IS456?

22.2.A

22.2.B

22.2.C

22.2.D

103 / 205

In which clause the effective span of a simply supported beam or slab is discussed in IS456?

22.1.A

22.2.A

22.3.A

22.4.A

104 / 205

In which clause (Figure number) the minimum dimensions of RCC members are discussed in IS456?

Fig 1

Fig 2

Fig 3

Fig 4

105 / 205

Fire resistance of concrete elements depends upon?

Type of Aggredate used

Member Size

Cover to Reinforcement

All the three

106 / 205

Which clause in IS456 explains about precautions to be taken for lateral sway for structures?

20.1

20.3

20.5

20.7

107 / 205

Which clause in IS456 explains about precautions to be taken for overturning of structures?

20.1

20.2

20.3

20.4

108 / 205

In which clause “Design Load” is defined in IS456

19.7

19.8

19.9

19.1

109 / 205

What is the code concerned to live loads consideration on structures?

IS875-1

IS875-2

IS875-3

IS875-5

110 / 205

What is the code concerned to dead loads consideration on structures?

IS875-1

IS875-2

IS875-3

IS875-5

111 / 205

What is the clause that discussed on the loads to be considered while designing structures?

19.1

19.2

19.3

112 / 205

What is the method of design usally adopted in design of structural elements

18.1.1 & 18.1.2

18.2.1 & 18.2.2

18.3.1 & 18.3.2

18.4.1 & 18.4.2

113 / 205

What is the aim of design any structural elements?

18.1

18.2

18.3

18.4

114 / 205

When should one carry the load test on structures

After 28 Days from placing of concrete

After 7 Days from placing of concrete

After 14 Days from placing of concrete

After 21 Days from placing of concrete

115 / 205

What are the clauses for inspection and testing of structures

All of the above

116 / 205

What should be the curing period to achieve 90% strength?

7 days

28 days

18 days

12 days

117 / 205

What should be the curing period to achieve 50% strength?

7 days

28 days

18 days

12 days

118 / 205

Clause for tolerances for cover in IS456?

12.3.1

12.3.2

12.3.3

12.3.4

119 / 205

Clause for tolerances for placing of reinforcments in IS456?

12.3.1

12.3.2

12.3.3

12.3.4

120 / 205

Clause for stripping time of formworks for various structural elements in IS456?

11.1

11.3.1

11.2.1

11.1.1

121 / 205

Clause for Cleaning and treatemnt of concrete formwork in IS 456?

11.1

11.2

11.3

11.4

122 / 205

Clause in IS456 that mentions the minimum time of mixing of concrete?

10.3.1

9.3

10.1

10.2.3

123 / 205

What is the minimum time of mixing of concrete?

2min

3min

4min

1min

124 / 205

Which codes do we refer for concrete mixers?

IS 1791 and IS 12119

IS 1791

IS 12119

IS456 and IS800

125 / 205

What is the code for mixing of concrete as per IS 456?

IS Code 10262

IS Code 875-Part5.

IS Code 1791

IS Code 2062

126 / 205

What is the minimum grade of concrete to be used in RCC for structures along the sea cost as per IS 456

M20

M25

M30

M35

127 / 205

What is the minimum grade of concrete to be used in PCC for structures along the sea coast as per IS 456?

M30

M15

M20

M25

128 / 205

What clause number from IS456 makes us understand the need for compaction, finishing and curing?

8.2.5

8.2.6

8.2.7

8.2.8

129 / 205

What is the clause concerned to curing of concrete as per IS 456?

13.2

13.3

13.4

13.5

130 / 205

For aggregate other than 20 mm , what is the table we have to refer in IS456 code to obtain water cement ratios?

Table 5

Table 6

Table 7

Table 8

131 / 205

What is the table concerned to water cement ratios for different grades of concrete with 20mm aggregate?

Table 4

Table 5

Table 6

Table 7

132 / 205

What is the clause concerned to discussion on the nominal cover to reinforcment in IS456?

25.4

26.4

27.4

28.4

133 / 205

The 6 factors that influences the Durability of concrete are mentioned in which clause of IS 456?

8.1.1

8.2.1

8.3.1

8.4.1

134 / 205

What is the cluase that talks on the Durabilty of Concrete in IS 456?

135 / 205

What are the values of Creep Coefficient as per IS 456?

7 Day – 2.2

28 Days – 1.6

One Year – 1.1

All of them

136 / 205

What is the approximate value of total srinkage strain in IS 456?

0.3

0.03

0.003

0.0003

137 / 205

What is the clause that shows the factors that influences the shrinkage of concrete in IS456?

6.2.2

6.2.3

6.2.4

6.2.5

138 / 205

What is the formula for modules fo elasticity of concrete as per IS456?

E = 4500 SQRT FCK

E = 5000 SQRT FCK

E = 5500 SQRT FCK

E = 4000 SQRT FCK

139 / 205

What clause explains the modules of Elasticity in IS456?

6.2.1

6.2.2

6.2.3.1

6.2.4

140 / 205

What is the relation between tensile strength and compressive strength of concrete in IS 456

Tensile Strength Fcr = 0.75 SQRT FCK

Tensile Strength Fcr = 0.77 SQRT FCK

Tensile Strength Fcr = 0.9 SQRT FCK

Tensile Strength Fcr = 0.7 SQRT FCK

141 / 205

What does M and 20 Stands for M20 Grade in IS 456

M is Material design and 20mm is the size of course aggregate.

M is Metal design and 20mm is the size of course aggregate.

M is Mix design and 20 is compressive strength of concrete of 15cm cube tested after 28 days of curing, below which 5% of the test results fail.

M is Material design and 20 is cube strength of 28cm size.

142 / 205

What is the table that specifies the possible grades of concrete as per IS 456?

Table 1

Table 2

Table 3

Table 4

143 / 205

Clause for using grade of concrete lesser than what is mentioned in Tabe-5 IS-456?

Yes – 6.1.1

Yes – 6.1.2

Yes – 6.1.3

Yes – 6.1.4

144 / 205

What is the table in IS 456 concerned to usage of Grades of concrete for plain and reinforced Concrete?

Table 5 (IS 456)

Table 2 (IS 456)

Table 4 (IS 456)

Table 1 (IS 456)

145 / 205

What are the codes concernd to Mild & Medium steel bars and HYSD steel bars?

IS456 and IS1873

IS423Part1 and IS1876

IS432Part1 and IS1786

IS243 Part1 and IS1678

146 / 205

What is the clause concerned to usage of sea water for concrete mixing as per IS 456?

Clause 5.4.3

Clause 5.3.3

Clause 5.2.3

Clause 5.1.3

147 / 205

What should be the PH value of water used for mixing concrete as per IS 456?

Should not be less than 6

Should not be less than 4

Should not be less than 3.5

Should not be more than 7

148 / 205

Which type of water is to be used for mixing concrete as per IS 456?

Bore water

Sea Water

Potable Water

Clean Mineral water

149 / 205

What is the size of the aggregate mostly used for concreting?

25 mm

15 mm

40 mm

20 mm

150 / 205

What are the two popular Grades of Cement?

53 and 34 Grade

34 and 43 Grade

43 and 53 grade

53 and 63 Grade

151 / 205

How many Annexures and sections are there in IS 456?

A to C

A to H

A to G

Only A

152 / 205

How many sections are there in IS 456?

4 Sections 45 Clauses

4 Sections 43 Clauses

3 Sections 34 Clauses

5 Section, 43 Clauses

153 / 205

The maximum ratio of span to depth of a cantilever slab is

154 / 205

The diameter of longitudinal bars of a column should never be less than..

6 mm

8 mm

10 mm

12 mm

155 / 205

The maximum area of tension reinforcement in beams shall not exceed

1.50%

0,15%

0.40%

156 / 205

A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is

2.5

Less than 2

Less than 2.5

157 / 205

The diameter of main bars in R.C.C. columns, shall not be less than

6 mm

8 mm

10 mm

12 mm

158 / 205

If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is

10 mm

12 mm

14 mm

16 mm

159 / 205

A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds

160 / 205

The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel bars, but not less than

4 mm

5 mm

6 mm

7 mm

161 / 205

An R.C.C column is treated as short column if its slenderness ratio is less than

162 / 205

Spacing of stirrups in a rectangular beam, is

Kept constant thoughout the length

Decreased towards the centre of the

Increased at the ends

Increased at the centre of the beam

163 / 205

Side face reinforcement shall be provided in the beam when depth of the web in a beam exceeds

50 cm

75 cm

100 cm

120 cm

164 / 205

The spacing of transverse reinforcement of column is decided by the following consideration

The least lateral dimension of the column

Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column

Forty-eight times the diameter of transvers reinforcement

All the above

165 / 205

According to whitney’s theory, the maximum depth of concrete stress block in a balanced RCC beam section of depth “d” is..

0.43 d

0.537 d

0.68 d

0.85 d

166 / 205

Accoording to whitney’s theory , ultimate strain of concrete is assumed to be

0.0003

0.001

0.003

0.03

167 / 205

The design yield stress of steel according to IS: 456-2002 is

0.37 fy

0.57 fy

0.67 fy

0.87 fy

168 / 205

Maximum percentage reinforcement in case of slabs is limited to

169 / 205

The diameter of ties in column should be

More than or equal to one fourth of diameter of main bar

More than or equal to 5mm

More than 5 mm but less than one-fourth of diameter of main bar

More than one-fourth of diameter of main bar and not less than 5 mm

170 / 205

The minimum cover for a column should not be less than

15 mm

25 mm

40 mm

45 mm

171 / 205

The minimum diameter for longitudinal bars in a column is

6 mm

8 mm

12 mm

16 mm

172 / 205

The Effective length is of a columns of length having both the ends fixed is?

L/2

173 / 205

The assumption in the theory of bending of beam is?

Material is homogeneous

Material is isotropic

Young’s modulus in tension and in compression is same.

All the above

174 / 205

P = Pi*2 E I /L*2 is the buclking load for column with..!

Both the ends are fixed

Both the ends are hinged

One end is fixed and other end is free

One end is fixed and other end is hinged

175 / 205

What is slenderness ratio of a long column?

Area of cross-section divided by radius of gyration

Area of cross-section divided by least radius of gyration

Radius of gyration divided by Area of cross-section

Length of column divided by least radius of gyration

176 / 205

Which IS code gives details regarding acid-resistant bricks?

IS 4832

IS 4860

IS 5766

IS 5318

177 / 205

How many parts (books) does IS code 875 contain?

178 / 205

Which IS code gives specifications about dimensions for hot rolled steel structures?

IS 806-1989

IS 808-1979

IS 806-1968

IS 806-1969

179 / 205

IS 1893-2002 gives details on?

Seismic strengthning

Retaining walls

Wind load design

Criteria for Earthquake Resistant Design of Structures

180 / 205

Which IS code is used to refer details regarding measurement of building and civil engineering works?

IS 1200

IS 2502

IS 1786

IS 800

181 / 205

Which is the most basic IS code for a Civil engineering designs?

IS 567

IS 456

IS 455

IS 383

182 / 205

IS 2062 gives specifications about?

High strength steel

High strength concrete

Concrete for general purpose

Hot rolled medium and high tensile Structural steel

183 / 205

How many clauses are there in IS-456 (2000)?

184 / 205

The slab is designed as one way if the ratio of long span to short span is?

less than 1

Between 1 and 1.5

Between 1 and 2

Greater than 2

185 / 205

In reinforced concrete footing on soil, the minimum thickness at edge should not be less than?

100 mm

150 mm

200 mm

250 mm

186 / 205

Critical section for punching shear in case of flat slabs is at a distance of?

Effective depth for slab from periphery of column/drop panel

d/2 from periphery of column/capital/drop panel

At the drop panel of slab

At the periphery of column

187 / 205

A continuous beam is deemed as a deep beam when the ratio of effective span to overall depth (l/d) is less than?

1.5

2.5

188 / 205

Maximum distance between expansion joints in structures as per IS:456-1978 is?

20 m

30 m

45 m

60 m

189 / 205

Minimum pitch of transverse reinforcement in a column is?

The least lateral dimension of the member

Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied

Forty-eight times the diameter of transeverse reinforcement

Least of the above three values

190 / 205

Which of the following statements is incorrect?

Minimum cross sectional area of longitudinal reinforcement in a column is 0.8%.

Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm.

Reinforcing bars in a column should not be less than 12mm in diameter.

The number of longitudinal bars provided in a circuler column should not be less than four.

191 / 205

The percentage of reinforcement in slabs, when Mild steel bars are used should not be less than?

0.15

0.12

0.3

192 / 205

The percentage of reinforcement in slabs, when HYSD bars are used should not be less than?

0.15

0.12

0.3

193 / 205

According to IS:456-1978, the maximum percentage of reinforcement in a column to avoid congestion is?

194 / 205

According to IS:456-1978, the maximum percentage of reinforcement in a column is?

195 / 205

The ratio of the diameter of reinforcing bars and the slab thickness is?

1/4

1/5

1/6

1/8

196 / 205

For a longitudinal reinforcement bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than?

15 mm

25 mm

30 mm

40 mm

197 / 205

The minimum cover in a slab should neither be less than the diameter of bar nor less than

10 mm

15 mm

25 mm

13 mm

198 / 205

According to IS:456-1978, minimum slenderness ratio for a short column is?

Less than 12

Less than 18

Between 18 and 24

More than 24

199 / 205

According to IS:456-1978, the cblumn or the strut is the member whose effective length is greater than?

The least lateral dimension

2 times the least lateral dimension

3 times the least lateral dimension

4 times the least lateral dimension

200 / 205

According to IS:456-1978, the fiexural strength of concrete is?

Directly proportional to compressive strength

Inversely proportional to compressive strength

Directly proportional to squre root of compressive strength

Inversely proportional to squre root of compressive strength

201 / 205

Maximum quantity of water needed per 50kg of cement for M15 grade of concrete (PCC) as per Table-5 of IS-456 is?

28 liters

30 liters

32 liters

34 liters

202 / 205

Minimum grade of concrete to be used in reinforced concrete as per IS:456-2002 is?

M15

M20

M10

M25

203 / 205

If nominal shear stress Tv exceeds the design shear strength of concrete Tc, the nominal shear reinforcement as per IS:456-1978 shall be provided for carrying a shear stress equal to?

Tv-Tc

Tv+Tc

204 / 205

For a reinforced concrete section, the shape of shear stress diagram is?

Wholly parabolic

Wholly rectanguler

Parabolic above neutral axis and rectanguler below neutral axis

Rectanguler above neutral axis and parabolic below neutral axis

205 / 205

The factor of safety in design for?

Steel and concrete are same

Steel is lower than that for concrete

Steel is higher than that for concrete

None of the above

Your score is

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