If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is

A

$${\text{D}} = \frac{{{\text{W}}\left( {{\text{a}} - {\text{b}}} \right)}}{{4{{\text{a}}^2}{\text{bq}}}}$$

B

$${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{4{{\text{a}}^2}{\text{bq}}}}$$

C

$${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{8{{\text{a}}^2}{\text{bq}}}}$$

D

$${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{4{\text{abq}}}}$$

3/4th of square were taken to form shape A and the rest was made to form shape B. Shape A was divided into four equal squares (Shape C), what will be the ratio of the one shape C to one shape B.

A

1:4

B

3:16

C

1:2

D

3:4

Raft foundation are generally preferred to when the area required for individual footing, is more than

A

25% to total area

B

30% of total area

C

40% to total area

D

50% of total area

In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

A

Less loaded column

B

More loaded column

C

A point of the maximum shear force

D

A point of zero shear force

Top bars are extended to the projecting parts of the combined footing of two columns L distance apart for a distance of

A

0.1 L from the outer edge of column

B

0.1 L from the centre edge of column

C

Half the distance of projection

D

One-fourth the distance of projection

সাধারণত MAT foundation উপযোগী বিবেচনা করা হয়, যখন Individual footing এর আয়তন সমগ্র আয়তনের - এর বেশী হয়।

A

২৫

B

৩০

C

৪০

D

৫০

Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than

A

42 diameters from the centre of the column

B

42 diameters from the inner edge of the column

C

42 diameters from the outer edge of the column

D

24 diameters from the centre of the column

The type of footing which is used to transmit heavy loads through steel columns is

A

Raft foundation

B

Grillage foundation

C

Well foundation

D

Isolated footing

ABCD is a rectangle . If its lengthis decreased by 5 meter and the width is increased by 3 mete3r, the area de3creases by 2 meter, the area inceases by 67 square meter, What is the width width of ABCD?

A

9 meter

B

17 meter

C

18 meter

D

22 meter

When the width of car parking space and width of street are limited, generally preferred parking system is

A

Parallel parking

B

45° angle parking

C

65° angle parking

D

90° angle parking

If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

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