Description : Tensile and compressive stresses in a beam of un-symmetrical section are (a) σt = σc (b) σt =0 (c) σc =0 (d) None
Last Answer : (d) None
Description : Tensile and compressive stresses in a beam of symmetrical section are (a) σt = σc (b) σt > σc (c) σt < σc (d) None
Last Answer : (a) σt = σc
Description : In a simply supported beam loaded with U.D.L over the whole section, the bending stress is …………. at top and ………….. at bottom. (a) Compressive, tensile (b) Tensile, compressive (c) Tensile, zero (d) Compressive, zero
Last Answer : (a) Compressive, tensile
Description : Propagation of fatigue failure is always due to compressive stresses. (a) Due to bending (b) Due to tensile (c) Due to fatigue (d) None of the listed
Last Answer : (b) Due to tensile
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 : 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, ... One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius
Last Answer : (c) One-quarter of the radius
Description : When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under (a) Tensile stress (b) Compressive stress (c) Shear stress (d) All of these
Last Answer : c) Shear stress
Description : 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 ... (B) Atft (d - n/3) (C) ½ n1 (1 - n1/3) cbd² (D) All the above
Last Answer : Answer: Option D
Description : A close coiled spring under axial load produces (a) Bending stresses (b) Shear stresses (c) Tensile stresses (d) None
Last Answer : (b) Shear stresses
Description : Nature of stresses produced in buckling and bending are (a) Same (b) Different (c) Only tensile (d) None
Last Answer : (a) Same
Description : The type of stress induced in a closed coiled helical tension spring is a. tensile b. compressive c. torsional shear d. tensile and compressive
Last Answer : c. torsional shear
Description : A thin spherical shell under internal pressure will fail under a. Maximum shear stress b. Principal compressive stress c. Principal tensile stress d. None
Last Answer : c. Principal tensile stress
Description : A power transmitting ductile material shaft under P, T and M will fail under (a) Tensile considerations only (b) Compressive considerations only (c) Shear considerations only (d) None
Last Answer : (c) Shear considerations only
Description : It is a secondary shaft used to counter the direction of main shaft. 81. Shafts are subjected to ______ forces. a) Compressive b) Tensile c) Shear d) twisting
Last Answer : b) Tensile
Description : When a bar is subjected to increase in temperature and its deformation is prevented, the stress induced in the bar is (a) Tensile (b) Compressive (c) Shear (d) None of the above
Last Answer : (b) Compressive
Description : When a bar is subjected to a change of temperature and its longitudinal deformation is prevented, the stress induced in the bar is (a) Tensile (b) Compressive (c) Shear (d) Temperature
Last Answer : (d) Temperature
Description : The value of Poison’s ratio depends upon (a) Nature of load, tensile or compressive (b) Magnitude of load (c) Material of the test specimen (d) Dimensions of the test specimen
Last Answer : (c) Material of the test specimen
Description : Keeping loading same but increasing the length, shear stresses in a beam will (a) Increase (b) Decrease (c) No change (d) None
Last Answer : (c) No change
Description : Keeping loading same but increasing the length, normal stresses in a beam will (a) Increase (b) Decrease (c) No change (d) None
Last Answer : (a) Increase
Description : Variation of bending stresses in a beam have (a) Parabolic variation (b) Linear variation (c) Cubical variation (d) None
Last Answer : (b) Linear variation
Description : At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by (A) Depth of the section (B) Depth of the neutral axis (C) Maximum tensile stress at the section (D) Maximum compressive stress at the section
Last Answer : (B) Depth of the neutral axis
Description : The section modulus of a rectangular light beam 25 metres long is 12.500 cm3 . The beam is simply supported at its ends and carries a longitudinal axial tensile load of 10 tonnes in addition to a point load of ... 13.33 kg/cm2 compressive (C) 26.67 kg/cm2 tensile (D) 26.67 kg/cm2 compressive
Last Answer : (C) 26.67 kg/cm2 tensile
Description : A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, centre of gravity of the section from flange side is (A) h/4 (B) h/3 (C) h/2 (D) 2/3 h
Last Answer : (A) h/4
Description : When a simply supported beam is loaded with a point load at the centre, the maximum tensile stress is developed on the (a) Top fibre (b) Bottom fibre (c) Neutral axis (d) None of these
Last Answer : (b) Bottom fibre
Description : Propagation of fatigue failure is always due to compressive stresses. a) Due to bending b) Due to tensile c) Due to fatigue d) None of the listed
Last Answer : b) Due to tensile
Description : Cotter joint is employed when the members are subjected to which sort of stresses? a) Axial tensile b) Axial compressive c) Axial tensile or compressive d) None of the above
Last Answer : c) Axial tensile or compressive
Description : Transverse fillet welds are under (i) Bending and shear stresses (ii)Compressive and torsion shear stresses (iii)Tensile and compressive stresses (iv)None
Last Answer : (iv)None
Description : Parallel fillet welds are under Shear and bending stresses Compressive and torsion shear stresses Tensile and compressive stresses None
Last Answer : None
Description : Cotter joint is used when the members are subjected to which type of stresses? a) Axial tensile b) Axial compressive c) Axial tensile or compressive d) None of the mentioned
Description : In the analysis, all the principal stresses are assumed as a. Shear stresses b. Compressive stresses c. Tensile stresses d. None
Last Answer : c. Tensile stresses
Description : Nature of the three principal stresses is a. Firstly All tensile b. Secondly All compressive c. Thirdly All shear d. None
Last Answer : a. Firstly All tensile
Description : The equations for principal stresses are valid only when (a)σ x and σ y are both tensile (b) σ x is compressive and σ y is tensile (c) σ x is tensile and σ y is compressive (d) None
Last Answer : (a)σ x and σ y are both tensile
Description : In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively (A) Compressive and tensile (B) Tensile and compressive (C) Both compressive (D) Both tensile
Description : The purpose of reinforcement in pre-stressed concrete is (A) To provide adequate bond stress (B) To resist tensile stresses (C) To impart initial compressive stress in concrete (D) All of the above
Description : The longitudinal shearing stresses acting on the surface between the steel and concrete are called. (a) Bond stress (b) Tensile stresses (c) Compressive stresses (d) None of these
Last Answer : (a) Bond stress
Description : Reinforced cement concrete is equally strong in taking (a) Tensile and compressive stress (b) Compressive and shear stresses. (c) Tensile, compressive and shear stresses. (d) Tensile and shear stresses.
Last Answer : (c) Tensile, compressive and shear stresses.
Description : When a section is subjected to two equal and opposite forces tangentially to the section, the stress produced is known as (a) Tensile stress (b) Lateral stress (c) Shear stress (d) No stress
Last Answer : (c) Shear stress
Description : The property of a material by which it can be drawn to a smaller section by applying a tensile load is called (a) Elasticity (b) Plasticity (c) Ductility (d) Malleabilityy
Last Answer : (c) Ductility
Description : Moment of inertia acting on a semi-circle about symmetrical axes is given as _______ a. 1.57 r4 b. 0.055 r4 c. 0.392 r4 d. 0.11 r4
Last Answer : c. 0.392 r4
Description : 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
Last Answer : (b) Breadth
Description : A beam of uniform rectangular section 200 mm wide and 300mm deep is simply supported at its ends.It carries a uniformly distributed load of 9KN/m run over the entire span of 5m.If E=1×104 N/mm2, what is the maximum deflection? a.14.26 mm b.17.28 mm c.18.53 mm d.16.27 mm.
Last Answer : d.16.27 mm.
Description : A simply supported beam is of rectangular section.It carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the depth of beam is doubled ,the deflection at the centre would be a.2y b.4y c.y/2 d.y/8.
Last Answer : d.y/8.
Description : A hollow prismatic beam of circular section is subjected to a torsional moment. The maximum shear stress occurs at (a) inner wall of cross section (b) middle of thickness (c) outer surface of shaft (d) none of these
Last Answer : (c) outer surface of shaft
Description : A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the a. top of the section b. bottom of the section c. neutral axis of the section d. junction of web and flange
Last Answer : c. neutral axis of the section
Description : A beam of uniform strength has a. same cross-section throughout the beam b. same bending stress at every section c. same bending moment at every section d. same shear stress at every section
Last Answer : b. same bending stress at every section
Description : For a beam of triangular cross section, the ratio τmax/ τav is (a) 3/2 (b) 4/2 (c) 5/2 (d) None
Last Answer : (a) 3/2
Description : Shear stress in a I-section beam is maximum art the (a) Outermost fiber (b) At the junction of web and flange (c) Central fiber (d) None
Last Answer : b) At the junction of web and flange
Description : Shear stress in the beam acting on the cross section is (a) Normal to the cross section (b) Tangential to the cross section (c) Neither normal nor tangential (d) None
Last Answer : b) Tangential to the cross section
Description : The strength of a beam depends upon (a) Its section modulus (b) Permissible bending stress (c) Both (a) and (b) (d) None of these
Last Answer : (a) Its section modulus
Description : The average shear stress in a beam of circular section is _______ times the maximum shear stress. a. 0.75 b. 1.5 c. 4/3 d. equa
Last Answer : a. 0.75