Description : A long column with fixed ends can carry load as compared to cantilever column (a) 4 times (b) 8 times (c) 16 times (d) None
Last Answer : (c) 16 times
Description : According to Euler’s column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends. (a) equal to (b) two times (c) four times (d) eight times
Last Answer : (c) four times
Description : A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged. (a) l/8 (b) l/4 (c) l/2 (d) l
Last Answer : c) l/2
Description : A column with maximum equivalent length has (a) both ends hinged (b) both ends fixed (c) one end fixed and the other end hinged (d) one end fixed and the other end free
Last Answer : (d) one end fixed and the other end free
Description : Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (a) One end is fixed and other end is hinged (b) ... (c) One end is fixed and the other end entirely free (d) Both the ends are fixed
Last Answer : (d) Both the ends are fixed
Description : A column of length 4m with both ends fixed may be considered as equivalent to a column of length ………….with both ends hinged. (a) 2 m (b) 1 m (c) 3 m (d) 6 m
Last Answer : For a long column subjected to 1 point axial compressive load, its buckling strength will be maximum when its
Description : .In a free moment diagram support assumption is a. Simply supported ends b.free free ends c. fixed ends d.hinged ends
Last Answer : a. Simply supported ends
Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose endsare hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximumcrippling load will be (a) 1.288 tonnes (b) 12.88 (c) 128.8 tonnes (d) 288.0
Last Answer : (b) 12.88
Description : The equivalent length of a column fixed at both ends, is (a) 0.5 l (b) 0.7 l (c) l (d) 1.5 l
Last Answer : (a) 0.5 l
Description : A column has its equivalent length equal to its length in case of a.one end fixed, other free b.both ends hinged c.one end hinged, other free d.107 dynes e.both end fixed
Last Answer : b. both ends hinged
Description : The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is (A) 1 (B) 2 (C) 3 (D) 4
Last Answer : (D) 4
Description : Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (A) One end is fixed and other end is hinged (B) Both ... (C) One end is fixed and the other end entirely free (D) Both the ends are fixed
Last Answer : (D) Both the ends are fixed
Description : While designing the pile as a column, the end conditions are nearly (A) Both ends hinged (B) Both ends fixed (C) One end fixed and other end hinged (D) One end fixed and other end free
Last Answer : Answer: Option C
Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling load will be (A) 1.288 tonnes (B) 12.88 (C) 128.8 tonnes (D) 288.0
Last Answer : (B) 12.88
Description : Euler's formula states that the buckling load for a column of length , both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are and respectively, is given by the relation (A) P = ²EI/l² (B) P = /EI (C) P = /l² (D) P = ²EI/l
Last Answer : (A) P = ²EI/l²
Description : P = /L² is the equation for Euler's crippling load if (A) Both the ends are fixed (B) Both the ends are hinged (C) One end is fixed and other end is free (D) One end is fixed and other end is hinged
Last Answer : (B) Both the ends are hinged
Description : With identical beam and column, buckling occurs as compared to bending under a (a) Lesser load (b) Larger load (c) Equal load (d) None
Last Answer : (a) Lesser load
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 cantilever is a beam whose (a) Both ends are supported either on rollers or hinges (b) One end is fixed and other end is free (c) Both ends are fixed (d) Whose both or one of the end has overhang
Last Answer : b) One end is fixed and other end is free
Description : The direct stress included in a long column is………….. as compared to bending stress. (a) More (b) Less (c) Same (d) Negligible
Last Answer : d) Negligible
Description : A beam 3m long simply supported at its ends ,is carrying a point load W at the centre.If the slope at the ends of the beam should not exceed 10,find the deflection at the centre of beam? a.18.41 mm b.13.45 mm c.17.45 mm d.21.67 mm.
Last Answer : c.17.45 mm
Description : For keeping the stress wholly compressive the load may be applied on a circular column anywherewithin a concentric circle of diameter (a) d/2 (b) d/3 (c) d/4 (d) d/8
Last Answer : (c) d/4
Description : When a column is subjected to an eccentric load, the stress induced in the column will be (a) direct stress only (b) bending stress only (c) shear stress only (d) direct and bending stress both
Last Answer : (d) direct and bending stress both
Description : For a fixed beam with midpoint load point moment for x
Last Answer : b. P/8(4x-L)
Description : .For a fixed beam with midpoint load point of contraflexure occurs at a. L/4 b. L/2 c. L/6 d. L/8
Last Answer : a. L/4
Description : Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively. a) 7 b) 6 c) 5 d) 4
Last Answer : a) 7
Description : A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the (a) axis of load (b) perpendicular to the axis of load (c) maximum moment of inertia (d) minimum moment of inertia
Last Answer : (d) minimum moment of inertia
Description : 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
Last Answer : (b) One-fifth of the base
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 : Buckling of a column occurs under (a) Axial load (b) Transverse load (c) Direct load (d) None
Last Answer : (a) Axial load
Description : A column has moment of inertia about X-X and Y-Y axis as follows IXX=4234.4 mm4 IYY=236.3 mm4 This column will buckle about (a) X-X axis (b) Y-Y axis (c) It depends upon the applied load (d) None of these
Last Answer : (b) Y-Y axis
Description : A short, hollow cast iron cylinder with a wall thickness of 1 cm is to carry a compressive load of 10 tonnes. If the working stress in compression is 800 kg/cm2, the outside diameter of the cylinder should not be less than a) 0.5cm b) 5 cm c) 2.5cm d) 4.5 cm
Last Answer : b) 5 cm
Description : In a simply supported beam, bending moment at the end (a) Is always zero if it does not carry couple at the end (b) Is zero, if the beam has uniformly distributed load only (c) Is zero if the beam has concentrated loads only (d) May or may not be zero
Last Answer : (a) Is always zero if it does not carry couple at the end
Description : The stress at which extension of a material takes place more quickly as compared to increase in load, is called (a) No elastic zone (b) Plastic point (c) Yield point (d) Breaking point
Last Answer : (c) Yield point
Description : For a fixed beam with midpoint load point deflection for x
Last Answer : c. (Px2/48EI)(3L-4x)
Description : For a fixed beam with midpoint load point, reaction force at support is a.P b.P/2 c.P/3 d.P/4
Last Answer : b.P/2
Description : For a fixed beam with midpoint load point, maximum deflection at the centre is a.PL3/ 192EI b.PL2/ 48EI c.PL4/ 192EI d.PL3/ 48EI
Last Answer : a.PL3/ 192EI
Description : A cantilever of length 3m carries a point load of 60 KN at a distance of 2m from the fixed end.If E= 2×105 and I=108, what is the deflection at the free end?. a.7 mm b.14 mm c.26 mm d.52 mm.
Last Answer : b.14 mm
Description : In a cantilever subjected to a combination of concentrated load, uniformly distributed load and uniformly varying load, Maximum bending moment is (a) Where shear force=0 (b) At the free end (c) At the fixed end (d) At the mid-point
Last Answer : (c) At the fixed end
Description : In a cantilever subjected to a concentrated load (W) at the free end and having length =l, Maximum bending moment is (a) Wl at the free end (b) Wl at the fixed end (c) Wl/2 at the fixed end (d) Wl at the free end
Last Answer : (b) Wl at the fixed end
Description : The bending moment diagram for a cantilever with point load, at the free end will be (a) A triangle with max. height under free end (b) A triangle with max. height under fixed end (c) A parabolic curve (d) None of these
Last Answer : (b) A triangle with max. height under fixed end
Description : The Rankine formula holds good for (a) Short column (b) Long column (c) Medium column (d) Both short and long column
Last Answer : (d) Both short and long column
Description : Deflection of a simply supported beam when subjected to central point load is given as ________ a. (Wl /16 EI) b. (Wl2/16 EI) c. (Wl3/48 EI) d. (5Wl4/ 384EI)
Last Answer : c. (Wl3/48 EI)
Description : If is the uniformly distributed load on a circular slab of radius fixed at its ends, the maximum positive radial moment at its centre, is (A) 3WR²/16 (B) 2WR²/16 (C) WR²/16 (D) None of these
Description : The ratio of strength of a hollow shaft to that of a solid shaft subjected to torsion if both are of the same material and of the same outer diameters, the inner diameter of hollow shaft being half of the outer diameter is a. 15/16 b. 16/15 c. 7/8 d. 8/7
Last Answer : a. 15/16
Description : If the slenderness ratio for a column is 100, then it is said to be a __________ column. (a) Long (b) medium (c)short (d) big
Last Answer : (a) Long
Description : Keeping loading same but increasing the length, normal stresses in a long column will (a) Increase (b) Decrease (c) No change (d) None
Last Answer : (b) Decrease
Description : A steel column is a long column when the slenderness ratio is (a) >120 (b) 30 (d) None
Last Answer : (a) >120
Description : Pure Buckling occurs in a (a) Short column (b) Medium Column (c) Long column (d) None
Last Answer : (c) Long column
Description : A column whose slenderness ratio is greater than 120 is known as (a) Short column (b) Long column (c) Medium column (d) Composite column
Last Answer : (b) Long column