The loose pockets in soil mass can be bridged safely by providing a raft foundation provided the soft area is smaller than (A) The column spacing (B) One-third the column spacing (C) Half the column spacing (D) Three-fourth the column spacing

The loose pockets in soil mass can be bridged safely by providing a raft foundation provided the
soft area is smaller than
(A) The column spacing
(B) One-third the column spacing
(C) Half the column spacing
(D) Three-fourth the column spacing
by

1 Answer

Answer :

Answer: Option B
by

Related questions

Raft foundations are used for: (A) Providing increased area of foundation over poor bearing capacity of soil (B) Spanning over small soft or loose pockets (C) Counter acting the hydrostatic effect (D) All the above

Description : Raft foundations are used for: (A) Providing increased area of foundation over poor bearing capacity of soil (B) Spanning over small soft or loose pockets (C) Counter acting the hydrostatic effect (D) All the above

Last Answer : Answer: Option D

For providing a raft foundation, the following activities are involved 1. Ramming the foundation bed 2. Excavation of the soil upto required depth 3. Laying the reinforcement over the foundation bed 4. Curing the cement concrete placed over reinforcement 5. Pouring the cement concrete over the reinforcement The correct sequence is (A) 1, 2, 3, 4, 5 (B) 5, 4, 3, 2, 1 (C) 2, 1, 3, 5, 4 (D) 3, 2, 5, 1,

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Last Answer : Answer: Option C

In soils possessing low bearing capacity, the type of foundation generally provided, is (A) Column footing (B) Grillage footing (C) Raft footing (D) All the above

Description : In soils possessing low bearing capacity, the type of foundation generally provided, is (A) Column footing (B) Grillage footing (C) Raft footing (D) All the above

Last Answer : Option D

State the necessity of providing (i) Combined column footing and (ii) Raft foundation

Description : State the necessity of providing (i) Combined column footing and (ii) Raft foundation

Last Answer : (i) Combined column footing:- A combined footing provided as a column for two or more columns in a row. Combine footing is also provided when the columns are very near to each other and ... total individual footing area of all columns exceeds 50% of built up area of building at ground floor.

A raft foundation is provided if its area exceeds the plan area of the building by (A) 10 % (B) 20 % (C) 40 % (D) 50 %

Description : A raft foundation is provided if its area exceeds the plan area of the building by (A) 10 % (B) 20 % (C) 40 % (D) 50 %

Last Answer : Answer: Option D

While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful: (A) Pile formation (B) Raft foundation (C) Grillage foundation (D) None of these

Description : While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful: (A) Pile formation (B) Raft foundation (C) Grillage foundation (D) None of these

Last Answer : Answer: Option B

For a number of columns constructed in a rcjw, the type of foundation provided, is (A) Footing (B) Raft (C) Strap (D) Strip

Description : For a number of columns constructed in a rcjw, the type of foundation provided, is (A) Footing (B) Raft (C) Strap (D) Strip

Last Answer : Answer: Option D

The foundation in which a cantilever beam is provided to join two footings, is known as (A) Strip footing (B) Strap footing (C) Combined footing (D) Raft footing

Description : The foundation in which a cantilever beam is provided to join two footings, is known as (A) Strip footing (B) Strap footing (C) Combined footing (D) Raft footing

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For the construction of flyovers in sandy soils, the type of foundation provided, is (A) Strap footing (B) Raft footing (C) Combined footing (D) Pier footing

Description : For the construction of flyovers in sandy soils, the type of foundation provided, is (A) Strap footing (B) Raft footing (C) Combined footing (D) Pier footing

Last Answer : Answer: Option D

To support a heavy structure in sandy soil, the type of foundation generally used, is (A) Combined footing (B) Raft footing (C) Pier footing (D) Strap footing

Description : To support a heavy structure in sandy soil, the type of foundation generally used, is (A) Combined footing (B) Raft footing (C) Pier footing (D) Strap footing

Last Answer : Answer: Option C

Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm (C) Reinforcing bars in a column should not be less than 12 mm in diameter (D) The number of longitudinal bars provided in a circular column should not be less than four

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Last Answer : Answer: Option D

The thickness of base slab of a retaining wall generally provided, is (A) One half of the width of the stem at the bottom (B) One-third of the width of the stem at the bottom (C) One fourth of the width of the steam at the bottom (D) Width of the stem at the bottom

Description : The thickness of base slab of a retaining wall generally provided, is (A) One half of the width of the stem at the bottom (B) One-third of the width of the stem at the bottom (C) One fourth of the width of the steam at the bottom (D) Width of the stem at the bottom

Last Answer : Answer: Option D

A foundation is called shallow if its depth, is (A) One-fourth of its width (B) Half of its width (C) Three-fourth of its width (D) Equal to its width

Description : A foundation is called shallow if its depth, is (A) One-fourth of its width (B) Half of its width (C) Three-fourth of its width (D) Equal to its width

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Isolated footing is provided under column to transfer the load safely to soil bed (B) Column footings may have steps or projections in the concrete base (C) Heavily loaded column base must be provided steel reinforcement in both directions (D) All the above

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The maximum total settlement for raft foundation on clayey soils should be limited to (A) 25 mm (B) 25 to 40 mm (C) 40 to 65 mm (D) 65 to 100 mm

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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

Description : 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

Last Answer : Option B

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

Description : 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

Last Answer : Option D

The foundation which consists of a thick reinforced cement slab covering whole area to support heavy concentrated structural loads, is known as (A) Combined footing (B) Strap footing (C) Raft footing (D) None of these

Description : The foundation which consists of a thick reinforced cement slab covering whole area to support heavy concentrated structural loads, is known as (A) Combined footing (B) Strap footing (C) Raft footing (D) None of these

Last Answer : Option C

According to IS:456, the diameter of the helices in circular a column shall be at least [ A ] The diameter of longitudinal steel [ B ] One-half the diameter of longitudinal steel [ C ] One-fourth the diameter of longitudinal steel [ D ] Three-fourth the diameter of longitudinal steel

Description : According to IS:456, the diameter of the helices in circular a column shall be at least [ A ] The diameter of longitudinal steel [ B ] One-half the diameter of longitudinal steel [ C ] One-fourth the diameter of longitudinal steel [ D ] Three-fourth the diameter of longitudinal steel

Last Answer : [ C ] One-fourth the diameter of longitudinal steel

The diameter of the Links in column should be at least……….of the largest diameter of the longitudinal steel [ A ] One-half [ B ] Three-fourth [ C ] One eighth [ D ] One – fourth

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The Maximum spacing of Secondary reinforcement in slabs should be [ A ] Less than 450 mm [ B ] Less than 300 mm [ C ] Smaller of three times the effective depth and 450 mm [ D ] Smaller of five times the effective depth and 450 mm

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The Maximum spacing of Main reinforcement „m‟ slabs shall be [ A ] Less than three times of the effective depth [ B ] Less than 300mm [ C ] Smaller of (a) and (b) [ D ] Greater of (a) and (b)

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Center of gravity of a solid cone lies on the axis at the height (A) One-fourth of the total height above base (B) One-third of the total height above base (C) One-half of the total height above base (D) Three-eighth of the total height above the base

Description : Center of gravity of a solid cone lies on the axis at the height (A) One-fourth of the total height above base (B) One-third of the total height above base (C) One-half of the total height above base (D) Three-eighth of the total height above the base

Last Answer : (A) One-fourth of the total height above base

Center of gravity of a thin hollow cone lies on the axis at a height of (A) One-fourth of the total height above base (B) One-third of the total height above base (C) One-half of the total height above base (D) Three-eighth of the total height above the base

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According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is (A) Half of the width of the slab (B) Two-third of the width of the slab (C) Three-fourth of the width of the slab (D) Four-fifth of the width of the slab

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One of the following is a shallow foundation a) Pile foundation b) Raft foundation* c) Under reamed pile foundation d) Well foundation

Description : One of the following is a shallow foundation a) Pile foundation b) Raft foundation* c) Under reamed pile foundation d) Well foundation

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Explain raft foundation with neat sketch and explain its suitability.

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Last Answer : Raft Footing: It is suitable where ground is soft. Clayey or marshy having low bearing capacity, and where sub soil water conditions are uncertain. The raft foundation is also used to reduce settlement below highly compressible soils

Suggest suitable situation for Raft foundation and Pile foundation.

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The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is (A) One-half of the base (B) One-fifth of the base (C) One-fourth of the base (D) One-fifth of the base

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Last Answer : (B) One-fifth of the base 

The effective width of a column strip of a flat slab, is (A) One-fourth the width of the panel (B) Half the width of the panel (C) Radius of the column (D) Diameter of the column

Description : The effective width of a column strip of a flat slab, is (A) One-fourth the width of the panel (B) Half the width of the panel (C) Radius of the column (D) Diameter of the column

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Top bars are extended to the projecting parts of the combined footing of two columns Ldistance 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

Description : Top bars are extended to the projecting parts of the combined footing of two columns Ldistance 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

Last Answer : Answer: Option B

Pile foundation is generally provided if soil is (A) Compressible (B) Water logged (C) Made up (D) All the above

Description : Pile foundation is generally provided if soil is (A) Compressible (B) Water logged (C) Made up (D) All the above

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Seepage through foundation in an earthen dam is controlled by providing (A) Rock toe (B) Horizontal blanket (C) Impervious cut off (D) Chimney drain

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To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is (A) Middle half rule of columns (B) Middle third rule of columns (C) Middle fourth rule of columns (D) None of these

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The power transmitted through the pipe is maximum when the head lost due to friction is equal to (A) One-fourth of the total supply head (B) One-third of the total supply head (C) One-half of the total supply head (D) Two-third of the total supply head

Description : The power transmitted through the pipe is maximum when the head lost due to friction is equal to (A) One-fourth of the total supply head (B) One-third of the total supply head (C) One-half of the total supply head (D) Two-third of the total supply head

Last Answer : Answer: Option B

The breadth of rib in a T-beam should at least be equal to __________the depth of rib (a) One –half (b) One –third (c) One-fourth (d) One –sixth

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Why are women's jeans pockets smaller than men's pockets?

Description : Why are women's jeans pockets smaller than men's pockets?

Last Answer : Wome have purses to carry stuff, men well, most men don’t. We use pockets.

According to IS: 456 -2000, the spacing of links in a Column should be less than [ A ] 16 x diameter of smallest longitudinal bar [ B ] 24 x diameter of smallest longitudinal bar [ C ] 48 x diameter of smallest longitudinal bar [ D ] 48 x diameter of greatest longitudinal bar

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Last Answer : [ A ] 16 x diameter of smallest longitudinal bar

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is (A) One-half of the radius (B) One-third of the radius (C) One-quarter of the radius (D) One-fifth of the radius

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Last Answer : (C) One-quarter of the radius

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Description : The fraction of earth’s surface covered with water. (a) One-fourth (b) Half (c) Three-fourth (d) Two-third.

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