Factor of safety is a. Tensile stress / Permissible stress b. Compressive stress / Ultimate stress c. Ultimate stress / Permissible stress d. Ultimate stress / Shear stress

Factor of safety is
a. Tensile stress / Permissible stress
b. Compressive stress / Ultimate stress
c. Ultimate stress / Permissible stress
d. Ultimate stress / Shear stress
by

1 Answer

Answer :

c. Ultimate stress / Permissible stress
by

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A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is (A) bn (fc /2) (d - n/3) (B) Atft (d - n/3) (C) ½ n1 (1 - n1/3) cbd² (D) All the above

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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 %

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Last Answer : Answer: Option C

A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2 , the area of steel required, is (A) 14 cm(B) 15 cm2(C) 16 cm2(D) 17 cm

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Last Answer : Answer: Option C

Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress. (A) Working (B) Bearing (C) Yield (D) None of these

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Last Answer : Option A

Examine the following statements: (i) Factor of safety for steel should be based on its yield stress, (ii) Factor of safety for steel should be based on its ultimate stress, (iii) Factor of safety for concrete should be based on its yield stress, (iv) Factor of safety for concrete should be based on its ultimate stress. The correct statements are (A) (i) and (iii) (B) (i) and (iv) (C) (ii) and (iii) (D) (ii) and (iv

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Last Answer : Answer: Option B

Define the term i) Ultimate stress ii) Factor of safety.

Description : Define the term i) Ultimate stress ii) Factor of safety.

Last Answer : i) Ultimate Stress:- It is defined as the ratio of maximum load that the specimen (system) can withstand to original cross-sectional area of specimen.  ii) Factor of Safety:- It is defined as the ratio of ultimate stress to working stress.

Steel rods are used in reinforced concrete to increase its __________ strength. (A) Shear (B) Tensile (C) Compressive (D) None of these

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Last Answer : (B) Tensile

Transverse fillet welds are under (i) Bending and shear stresses (ii)Compressive and torsion shear stresses (iii)Tensile and compressive stresses (iv)None

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Last Answer : (iv)None

Parallel fillet welds are under  Shear and bending stresses  Compressive and torsion shear stresses  Tensile and compressive stresses  None

Description : Parallel fillet welds are under  Shear and bending stresses  Compressive and torsion shear stresses  Tensile and compressive stresses  None

Last Answer :  None

The parallel fillet welded joint is designed for (a) tensile strength (b) compressive strength (c) bending strength (d) shear strength

Description : The parallel fillet welded joint is designed for (a) tensile strength (b) compressive strength (c) bending strength (d) shear strength

Last Answer : (d) shear strength

he transverse fillet welded joints are designed for (a) tensile strength (b) compressive strength (c) bending strength (d) shear strength

Description : he transverse fillet welded joints are designed for (a) tensile strength (b) compressive strength (c) bending strength (d) shear strength

Last Answer : (a) tensile strength