Consider the following statements:
Percentage of steel for balanced designed of a singly reinforced rectangular section by
limit state method depends on
(1) Characteristic strength of concrete
(2) Yield strength of concrete
(3) Modulus of elasticity of steel
(4) Geometry of the section.
Which of these statements are correct?
(a) 2, 3 and 4 (b) 1, 3 and 4
(c) 1, 2 and 4 (d) 1, 2 and 3

2 Answers

Answer :

(b) 1, 3 and 4

Answer :

1,2,4

Related questions

Description : If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be (A) 0.35 d (B) 0.40 d (C) 0.45 d (D) Dependent on grade of concrete also

Last Answer : Answer: Option B

Description : For an over -reinforced (singly reinforced )rectangular reinforced concrete section (a) The lever arm will be less than that for a balanced section (b) The maximum stress developed by concrete will be equal ... c) The maximum stress developed by steel will be equal to the allowable (d) All the above

Last Answer : (b) The maximum stress developed by concrete will be equal to allowable stress in concrete

Description : In a singly reinforced beam, if the stress in concrete reaches its allowable limit later than the steel reaches, its permissible value, the beam section is said to be (a) Under-reinforced section (b) Over-reinforced section (c) Critical section (d) Balanced section

Last Answer : (b) Over-reinforced section

Description : In a singly reinforced beam, if the permissible stress in steel reaches earlier than that of concrete, the beam section as called [ A ] Under reinforced section [ B ] Over reinforced section [ C ] Balanced section [ D ] Critical section

Last Answer : [ A ] Under reinforced section

Description : In a Singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called [ A ] Under reinforced section [ B ] Over reinforced section [ C ] Balanced section [ D ] Critical section

Last Answer : [ B ] Over reinforced section

Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Last Answer : (b) 135N/mm2

Description : Steel Beam theory is a method of designing [ A ] Balanced sections [ B ] Critical sections [ C ] Singly reinforced beams [ D ] Doubly reinforced beams

Last Answer : [ D ] Doubly reinforced beams

Description : In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called (A) Under-reinforced section (B) Over reinforced section (C) Economic section (D) Critical section

Last Answer : Answer: Option B

Description : If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is (A) 0.496 % (B) 0.596 % (C) 0.696 % (D) 0.796 %

Last Answer : Answer: Option C

Description : Minimum percentage of tension steel for a singly reinforced section Fe415 grade is [ A ] 0.2 [ B ] 0.35 [ C ] 2 [ D ] 3.5

Last Answer : [ A ] 0.2

Description : Minimum percentage of tension steel for a singly reinforced section Fe415 grade is [ A ] 0.2 [ B ] 0.35 [ C ] 2 [ D ] 3.5

Last Answer : [ A ] 0.2

Description : In general in the design of a section by limit method, it is assumed that [ A ] the stress in steel to reach its yield limit before concrete failure [ B ] the stress in concrete to ... in both concrete and steel reach their permissible values simultaneously [ D ] none of the above are correct

Last Answer : [ A ] the stress in steel to reach its yield limit before concrete failure

Description : In general in the design of a section by limit method, it is assumed that [ A ] the stress in steel to reach its yield limit before concrete failure [ B ] the stress in concrete to ... in both concrete and steel reach their permissible values simultaneously [ D ] none of the above are correct

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Description : The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called (A) Balanced section B) Economic section (C) Critical section (D) All the above

Last Answer : Answer: Option D

Description : Regarding the working stress design of under reinforced concrete section, (a) The neutral axis depth will be greater than that of a balanced section. (b) The stress in steel intension will reach ... on the tension side is also be considered for calculating the moment of resistance of the section.

Last Answer : both b&c

Description : The section in which concrete is not fully stressed to its permissible value when stress in steel reaches its maximum value is (a) Under-reinforced section (b) Over-reinforced section (c) Critical section (d) Balanced section

Last Answer : (a) Under-reinforced section

Description : The section of a reinforced beam where most distant concrete fiber in compression and tension in steel attains permissible stresses simultaneously is called (i)Balanced section (ii)Economic section (iii)Critical section [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Last Answer : [ D ] i, ii and iii

Description : Which of the following statements refer to correct purpose as regards testing of concrete by ultrasonic pulse velocity method? 1. To assess the quality of concrete in-situ. 2. To determine the dynamic modulus of elasticity of concrete. 3 ... and 2 only (b) 1 and 3 only (c) 2 and 3 only (d)1, 2 and 3

Last Answer : (d)1, 2 and 3

Description : A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm

Last Answer : Answer: Option C

Description : In a singly reinforced beam (A) Compression is borne entirely by concrete (B) Steel possesses initial stresses when embedded in concrete (C) Plane sections transverse to the centre line ... Elastic moduli for concrete and steel have different values within the limits of deformation of the beam

Last Answer : Answer: Option C

Description : In a singly reinforced concrete beam, as the load increases. (a) Only concrete will resist tension (b) Only steel bars will resist tension. (c) Both concrete and steel will resist tension. (d) Both concrete and steel will resist compression.

Last Answer : (b) Only steel bars will resist tension.

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Last Answer : (c) Both concrete & steel will resist tension.

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Last Answer : [ C ] Mu = 0.148 fck bd2

Description : If the grade of steel is Fe250, then the expression for moment of resistance of a singly reinforced section is [ A ] 0.149 fck bd2 [ B ] 0.138 fck bd2 [ C ] 0.125 fck bd2 [ D ] 0.012 fck bd2

Last Answer : [ A ] 0.149 fck bd2

Description : The expression for moment of resistance(Mu) of a singly reinforced section is, if the grade of steel in Fe415 [ A ] 0.149 fck bd2 [ B ] 0.138 fck bd2 [ C ] 0.125 fck bd2 [ D ] 0.0120 fck bd2

Last Answer : [ B ] 0.138 fck bd2

Description : If the grade of steel is Fe250, then the expression for moment of resistance of a singly reinforced section is [ A ] 0.149 fck bd2 [ B ] 0.138 fck bd2 [ C ] 0.125 fck bd2 [ D ] 0.012 fck bd2

Last Answer : [ A ] 0.149 fck bd2

Description : The expression for moment of resistance(Mu) of a singly reinforced section is, if the grade of steel in Fe415 [ A ] 0.149 fck bd2 [ B ] 0.138 fck bd2 [ C ] 0.125 fck bd2 [ D ] 0.0120 fck bd2

Last Answer : [ B ] 0.138 fck bd2

Description : Steel Beam theory is the method of analysis and a design of [ A ] Singly reinforced sections [ B ] Doubly reinforced sections [ C ] Both (a) and (b) [ D ] Steel structures only

Last Answer : [ B ] Doubly reinforced sections

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Last Answer : [ B ] Doubly reinforced sections

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Last Answer : Answer: Option C

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Last Answer : b) Yield strength

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Description : The most critical consideration in the design of a rolled steel column carrying axial loads is the (a) Percentage elongation at yield and the net cross-sectional area (b) Critical bending ... at ultimate load (d) Compressive strength based on slenderness ratio and gross cross-sectional area.

Last Answer : (d) Compressive strength based on slenderness ratio and gross cross-sectional area.

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Last Answer : Answer: Option D

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Last Answer : [ C ] both (a) and (b)

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Last Answer : [ C ] both (a) and (b)

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Last Answer : (a) Correct

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Last Answer : (C) 284 MN 

Description : If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

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Last Answer : (b) Tensile force developed in steel

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Description : Consider the following salient points in a stress-strain curve of a mild steel bar: 1. Yield point 2. Braking point 3. Yield plateau 4 . Proportionality limit 5. Ultimate point The correct sequence in which they occur while testing the mild ... , 5 and 2 (c) 4, 1, 3, 5 and 2 (d) 1, 4, 2, 3 and 5

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