A reinforcing slab, build monolithically with the supporting columns and is reinforced in two or more directions, without any provision of beams is called a (a) Two way slab (b) Flat slab (c) Continus slab (d) Cireulashion

A reinforcing slab, build monolithically with the supporting columns and is reinforced in two or more directions, without any provision of beams is called a
(a) Two way slab
(b) Flat slab
(c) Continus slab
(d) Cireulashion
by

1 Answer

Answer :

(b) Flat slab
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Pick up the correct statement from the following: (A) The roof slabs of multi-storeyed buildings are constructed monolithically to carry the various floor loads (B) The beams of multi-storeyed buildings rest on girders and are the main load transferring members to the columns (C) The slab is spanned across the secondary beams provided between the main beams (D) All of these

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The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept (A) 0.7 (B) 0.8 (C) 0.9 (D) 0.6

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The portion of the slab which acts monolithically with the beam and which resists the compressive stresses, is called _________of flange of the T-beam (a) Length (b) Breadth (c) Thickness (d) Depth

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Thickened part of a flat slab over its supporting column, is technically known as (A) Drop panel (B) Capital (C) Column head (D) None of these

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If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than (A) WL/12 (L - 2D/3)² (B) WL/10 (L + 2D/3)² (C) WL/10 (L - 2D/3)² (D) WL/12 (L - D/3)²

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Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not exceed four [ C ] The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above

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An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encasted with the floor of a hall 12 metres by 7 metres, is spaced at 3 metres from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is (A) 300 cm (B) 233 cm (C) 176 cm (D) 236 cm

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According to the steel beam theory of doubly reinforced beams (A) Tension is resisted by tension steel (B) Compression is resisted by compression steel (C) Stress in tension steel equals the stress in compression steel (D) All the above

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Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by (A) Rankine formula (B) Marcus formula (C) Rankine Grashoff formula (D) Grashoff formula

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For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is (A) 0.6 (B) 0.7 (C) 0.8 (D) 0.9

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If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is (A) 200 cm (B) 300 cm (C) 150 cm (D) 100 cm

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Flanged beams are preferred when the concrete in the slab is on the [ A ] compression side of the beam [ B ] tension side of the beam [ C ] may be compression side or tension side of the beam [ D ] none of the above

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The moments developed in the slab are influenced by the following factors i.Short span ii.Long span iii.Type of supporting edge. iv.Magnitude and type of load on slab [ A ] i, iii and iv [ B ] ii ,iii and iv [ C ] i and iii [ D ] i, ii , iii and iv

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A grillage foundation (A) Is provided for heavily loaded isolated columns (B) Is treated as spread foundation (C) Consists of two sets of perpendicularly placed steel beams (D) All the above

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For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is (A) 1 : 3 : 6 (B) 1 : 1½ : 3 (C) 1 : 2 : 4 (D) 1 : 1 : 2

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Pick up the correct statement from the following: (A) Construction joints in columns are provided a few cm below the junction of beam (B) Construction joints in columns are provided at the bottom hunching (C) Construction joints in beams and slabs are provided within middle third (D) All the above

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Mild steel is used for (A) Structural works in beams, joints and girders (B) Small sized water pipes (C) Columns and struts (D) None of these

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Cast iron is used for (A) Structural works in beams (B) Small sized water pipes (C) Columns and struts (D) None to these

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Wrought iron is used for (A) Structural works in beams (B) Small sized water pipes (C) Columns and struts (D) None to these

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In a group housing project, it is proposed to use pre-fabricated RCC beams and columns. The most useful construction equipment is (a) Derrick Crane (b) Chute (c) Weigh Batcher (d) Transit Mixer

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An R.C.C. roof slab is designed as a two way slab if (A) It supports live loads in both directions (B) The ratio of spans in two directions is less than 2 (C) The slab is continuous over two supports (D) The slab is discontinuous at edges

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In a two way slab flexural bending develops [ A ] Along short span [ B ] Along long span [ C ] In Mutually perpendicular directions [ D ] At the center of short span

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A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is (a) 6 mm diameter (b) 8 mm diameter (c) 10 mm diameter (d) 12 mm diameter

Description : A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is (a) 6 mm diameter (b) 8 mm diameter (c) 10 mm diameter (d) 12 mm diameter

Last Answer : (b) 8 mm diameter

It is preferable, that the design of slab should result in [ A ] A balanced section [ B ] An under reinforced section [ C ] Over reinforced section [ D ] None of the above.

Description : It is preferable, that the design of slab should result in [ A ] A balanced section [ B ] An under reinforced section [ C ] Over reinforced section [ D ] None of the above.

Last Answer : [ B ] An under reinforced section

To develop complete yield line pattern the slab must be [ A ] Under reinforced [ B ] Over reinforced [ C ] Both (a) and (b) [ D ] None of the above.

Description : To develop complete yield line pattern the slab must be [ A ] Under reinforced [ B ] Over reinforced [ C ] Both (a) and (b) [ D ] None of the above.

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The purpose of lateral ties in short reinforced concrete columns is to [ A ] Facilitate construction [ B ] Facilitate compaction of concrete [ C ] Increase the load carrying capacity of the columns [ D ] Avoid buckling of longitudinal bars

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The minimum thickness of a flat slab is taken (A) L/32 for end panels without drops (B) L/36 for end panels without drops (C) L/36 for interior panels without drop (D) All the above

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If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by (A) 0.2 (B) 0.3 (C) 0.4 (D) 0.5

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The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is (A) 25 (B) 30 (C) 35 (D) 40

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Last Answer : Answer: Option C

The maximum ratio of span to depth of a slab simple supported and spanning in two directions, is (a) 25 (b) 30 (c) 35 (d) 40

Description : The maximum ratio of span to depth of a slab simple supported and spanning in two directions, is (a) 25 (b) 30 (c) 35 (d) 40

Last Answer : (c) 35

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

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What are the beams and columns of a wall called ?

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An optically plane surface reflects a beam of light (1) as a parallel beam in one direction (2) as diffused beams in all directions (3) as parallel beams in all directions (4) as a diffused beam in one direction

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In flat roof of reinforced cement concrete, the recommended angle of slope, is (A) Zero (B) A few degrees (C) 10° (D) 200

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