Civil Engineering MCQs – Theory Of Structures Mcqs Latest
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Latest Civil Engineering MCQs
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Latest Theory Of Structures Mcqs
The most occurred mcqs of Theory Of Structures in past papers. Past papers of Theory Of Structures Mcqs. Past papers of Theory Of Structures Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Theory Of Structures Mechanics Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Theory Of Structures Mcqs. The Important series of Theory Of Structures Mcqs are given below:
Maximum principal stress theory for the failure of a material at elastic point, is known________________?
A. Guest’s or Trecas’ theory
B. Von Mises’ theory
C. Rankine’s theory
D. St. Venant’s theory
Pick up the correct statement from the following ?
A. The moment of inertia is calculated about the axis about which bending takes place
B. If tensile stress is equal to axial stress, the section experiences compressive stress
C. If tensile stress is less than axial stress, the section experiences compressive stress
D. All the above
Pick up the correct statement from the following?
A. The bending stress in a section is zero at its neutral axis and maximum at the outer fibres
B. The bending stress at the outer fibres, is known as principal stress
C. The shear stress is zero at the outer fibres and maximum at the neutral axis
D. All the above
A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised___________________?
A. Brass experiences compressive force
B. Steel experiences tensile force
C. Composite beam gets subjected to a couple
D. All the above
A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to________________?
A. /4h thrust is
B. /12h
C. /8h
D. /16h
Maximum strain theory for the failure of a material at the elastic limit, is known as_______________?
A. Guest’s or Trecas’ theory
B. St. Venant’s theory
C. Haig’s theory
D. Rankine’s theory
A close coil helical spring when subjected to a moment M having its axis along the axis of the helix_________________?
A. It is subjected to pure bending
B. Its number of coils will increase
C. Its mean diameter will decrease
D. All the above
Maximum shear stress theory for the failure of a material at the elastic limit, is known________________?
A. Guest’s or Trecas’ theory
B. Rankine’s theory
C. St. Venant’s theory
D. Haig’s theory
A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is_________________?
A. ML/2EI
B. ML/EI
C. ML²/2EI
D. ML²/3EI
Tunnel Engineering MCQs – Civil Engineering
constant, depth of a cantilever of length of uniform strength loaded with Keeping breadth uniformly distributed load varies from zero at the free end and________________?
A. w l) at the fixed end
B. l) at the fixed end
C. 2w w l at the fixed end
D. 3w l at the fixed end
The force in BC of the truss shown in the given figure, is___________________?
A. 3.0 t tension
B. 3.0 t compression
C. t tension
D. t compression
The degree of indeterminacy of the frame in the given figure, is______________?
A. Zero
B. 1
C. 3
D. 2
A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be________________?
A. 3/2
B. 2/3
C. 5/8
D. 8/5
In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is_________________?
A. L/3
B. L/2
C. L/4
D. L/5
If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia of the section, is_________________?
A. (IX – IY)/2
B. (IX + IY)/2
C. IX + IY
D. (I /I )
If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good_______________?
A. E = 2N (1 + 1/m)
B. E = 3K (1 – 2/m)
C. (3/2)K (1 – 2/m) = N (1 + 1/m)
D. All the above
Gradually applied static loads do not change with time their_______________?
A. Direction
B. Magnitude
C. Point of application
D. All the above
A body is said to be in equilibrium if___________________?
A. It moves vertically
B. It moves horizontally
C. It rotates about its C.G.
D. None of these
Civil Engineering MCQs – Hydraulics and Fluid Mechanics Mcqs Latest
The forces acting normally on the cross section of a bar shown in the given figure introduce_____________?
A. Shear stress
B. Tensile stress
C. Compressive stress
D. None of these
The load on a spring per unit deflection, is called______________?
A. Stiffness
B. Proof stress
C. Proof resilience
D. Proof load
A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is______________?
A. 4W²Dn/d4N
B. 4WD²n/d4N
C. 4W²D3n/d4N
D. 4W²D3n²/d4N
The moment of inertia of a triangular section (height h, base b) about its base, is_______________?
A. b²h/12
B. bh²/12
C. bh3/12
D. b3h/12
The assumption in the theory of bending of beams is_________________?
A. Material is isotropic
B. Material is homogeneous
C. Young’s modulus is same in tension as well as in compression
D. All the above
A concentrated load P is supported by the free end of a quadrantal ring AB whose end B is fixed. The ratio of the vertical to horizontal deflections of the end A, is______________?
A. /3
B. /2
C. /6
D. /4
A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is________________?
A. 4.5 mm
B. 4.0 mm
C. 5.0 mm
D. 5.5 mm
The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is_________________?
A. wl4/3EI
B. wl3/3EI
C. wl4/8EI
D. wl4/12EI
The forces acting normally on the cross section of a bar shown in the given figure introduce_______________?
A. Compressive stress
B. Shear stress
C. Tensile stress
D. None of these
A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is_____________?
A. 30 N
B. 25 N
C. 35 N
D. 40 N
The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called______________?
A. Proof stress
B. Proof resilience
C. Stiffness
D. Proof load
The strain energy due to volumetric strain________________?
A. Is inversely proportional to Bulk modulus
B. Is directly proportional to the square of exerted pressure
C. Is directly proportional to the volume
D. All the above
A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is________________?
A. L/2d
B. L/d
C. (L/2d)²
D. (L/3d)²
In the truss shown in given figure the force in member DC is________________?
A. 100 t tensile
B. 100 t compressive
C. Zero
D. Indeterminate
The ratio of lateral strain to axial strain of a homogeneous material, is known___________________?
A. Hooke’s ratio
B. Yield ratio
C. Poisson’s ratio
D. Plastic ratio
The force in BF of the truss shown in given figure, is_______________?
A. 4t compression
B. 4t tension
C. 4.5t tension
D. 4.5t compression
The ratio of maximum shear stress to average shear stress of a circular beam, is________________?
A. 3/2
B. 2/3
C. 3/4
D. 4/3
For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is________________?
A. 0.404
B. 0.303
C. 0.505
D. 0.707
m1 and m2 are the members of two individual simple trusses of a compound truss. The compound truss will be rigid and determinate if__________________?
A. m = m1 + m2 + 2
B. m = m1 + m2 + 1
C. m = m1 + m2
D. m = m + m + 3
The greatest load which a spring can carry without getting permanently distorted, is called_________________?
A. Proof resilience
B. Stiffness
C. Proof stress
D. Proof load
A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is_________________?
A. WL/AE
B. WL/2AE
C. W²L/AE
D. W²L/2AE
An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2l and rise h hinged at the crown, the horizontal reaction at the support, is_________________?
A. 2W/ha
B. Wa/2h
C. Wa/h
D. 2h/Wa
Engineering Economy MCQs – Civil Engineering
The force in CD of the truss shown in given figure, is________________?
A. 3t tension
B. 3t compression
C. Zero
D. 1.5t compression
The ratio of the area of cross-section of a circular section to the area of its core, is_______________?
A. 8
B. 4
C. 12
D. 16
In the truss shown in the given figure, the force in member BC is______________?
A. 100 t tensile
B. 100 t compressive
C. Zero
D. Indeterminate
In plastic analysis, the shape factor for rectangular section, is________________?
A. 1.6
B. 1.5
C. 1.4
D. 1.7
A masonry dam (density = 20,000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face. The minimum stress at the base of the dam when the reservoir is full, will be_______________________?
A. 750 N/m 2
B. 75 N/m2
C. 7500 N/m 2
D. 75000 N/m2
A shaft rotating N.R.M. under a torque T, transmits a power_______________?
A. /30 Newton metres/sec
B. /60 Newton metres/min
C. /30 Newton metres/min
D. /60 Newton metres/sec
The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is_______________?
A. 1/4
B. 2/3
C. 1/2
D. 1/3
The force in EC of the truss shown in the given figure, is__________________?
A. 5t tension
B. Zero
C. 5t compression
D. 4t tension
If and are external and internal diameters of a circular shaft respectively, its polar moment of inertia, is________________?
A. D4 – d4)
B. D4 – d4)
C. D4 – d4)
D. D4 – d4)
length of a column of length L, having one end fixed and other end hinged, is The equivalent_____________?
A. L
B. 2 L
C. L/2
D. L
MCQs of Civil Engineering Latest
A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is_______________?
A. [W (1 + f/ G)]/ A
B. [W (2 + f/G)]/A
C. (1 – g/f)/A
D. [W (2 + g/f)]/A
parabolic arch of span and rise , is given by The equation of a________________?
A. y = 2h/l² × (1 – x)
B. y = h/l² × (1 – x )
C. y = 3h/l² × (1 – x)
D. y = 4h/l² × (1 – x)
A rectangular column shown in the given figure carries a load P having eccentricities ex and ey along X and Y axes. The stress at any point (x, y) is_______________?
A. (p/bd) [1 + (12ey. y/d²) + (12ex. x/d²)]
B. (p/bd) [1 + (6ey. y/d) + (6ex. x/b)]
C. p [1 + (6ey. y/b) + (6ex. x/ b)]
D. (p/bd) [1 + (ey. y/d) + ( ex. x/d)]
A simply supported beam carries a varying load from zero at one end and w at the other end. If the length of the beam is a, the shear force will be zero at a distance x from least loaded point where x is_________________?
A. a/3
B. a/2
C. a
D. a
The shape factor of standard rolled beam section varies from_______________?
A. 1.10 to 1.20
B. 1.30 to 1.40
C. 1.20 to 1.30
D. 1.40 to 1.50
Principal planes are subjected to_________________?
A. Normal stresses only
B. Normal stresses as well as tangential stresses
C. Tangential stresses only
D. None of these
A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be________________?
A. 12 m
B. 10 m
C. 14 m
D. 16 m
If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (f /N)s__________________?
A. 1/3
B. 1/2
C. 1/4
D. 1/5
The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is__________________?
A. 3.00 cm
B. 2.75 cm
C. 3.50 cm
D. 4.25 cm
Strength of Materials MCQs – Civil Engineering
In the truss shown in given figure, the force in member BD is______________?
A. 100 t compressive
B. Zero
C. 100 t tensile
D. Indeterminate
The moment of inertia of a circular section about any diameter D, is______________?
A. 4/32
B. /64
C. 3/64
D. 4/64
Pick up the correct statement from the following?
A. The point of intersection of the bending axis with the cross section of the beam, is called shear centre
B. For channels, the shear centre does not coincide its centroid
C. For I sections, the shear centre coincides with the centroid of the cross section of the beam
D. All the above
Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then________________?
A. I/M = R/E = F/Y
B. M/I = R/E = F/Y
C. M/I = E/R = E/Y
D. M/I = E/R = Y/F
The locus of the moment of inertia about inclined axes to the principal axis, is______________?
A. Parabola
B. Straight line
C. Circle
D. Ellipse
A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber)_________________?
A. BD² + mbd3)/4D]
B. BD3 + mbd3)/6D]
C. BD² + mbd²)/6D]
D. BD² + mbd²)/4D]
The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x – (wx²/2)_______________?
A. A uniformly distributed load w/unit length
B. An isolated load at mid span
C. A load varying linearly from zero at one end to w at the other end
D. None of these
In the truss, the force in the member AC is_______________?
A. 8.75 t tensile
B. 6.25 t compressive
C. t tensile
D. t compressive
The point of contraflexure is the point where_______________?
A. B.M. changes sign
B. B.M. is minimum
C. B.M. is maximum
D. S.F. is zero
d constant, the width of a cantilever of length l of uniform strength loaded with Keeping the depth a uniformly distributed load w varies from zero at the free end and________________?
A. (3w/ × l² at the fixed end
B. (2w/ × l² at the fixed end
C. (3w/ × l² at the fixed end
D. (5w/ × l² at the fixed end
y/n) (1 – a l/r), is For calculating the allowable stress of long columns. The empirical formula 0 known as_________________?
A. Straight line formula
B. Perry’s formula
C. Parabolic formula
D. Rankine’s formula
For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D’. Distances AD, DD’ and AD’ when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is___________________?
A. 45°
B. 30°
C. 60°
D. 90°
The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is________________?
A. 1/10
B. 1/8
C. 1/12
D. 1/16
A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be________________?
A. 2p/a²
B. p/a²
C. 3p/a²
D. 4p/a²
A material may fail if______________?
A. Maximum strain exceeds /E
B. 0
C. Maximum shear stress exceeds
D. All the above
A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is____________________?
A. T/M
B. M/T
C. 2M/ T
D. 2T/M
A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm2, the deflection of the free end, is________________?
A. 3 mm
B. 2 mm
C. 4 mm
D. 5 mm
0. At its elastic limit, the following statement is true, 0/E__________________?
A. Strain energy = 0
B. Maximum shear stress = /2
C. Strain is equal to
0²/2E × volume
D. All the above
In plastic analysis, the shape factor for a triangular section, is_________________?
A. 1.34
B. 1.5
C. 2.34
D. 2.5
A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson’s ratio is 0.25, the change in the volume of the bar is_________________?
A. 2.125 cm3
B. 1.125 cm3
C. 3.125 cm3
D. 4.125 cm2
A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm2, the side of the rod, is_________________?
A. 1.5 cm
B. 1 cm
C. 2 cm
D. 2.5 cm
Total strain energy theory for the failure of a material at elastic limit, is known_________________?
A. St. Venant’s theory
B. Guest’s or Trecas’ theory
C. Rankine’s theory
D. Haig’s theory
The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length is (where Ic is the M.I. at the crown, which varies as the slope of the arch)___________________?
A. 100/EIc
B. 50/EIc
C. 150/EIc
D. 200/EIc
Stress may be expressed in Newtons___________________?
A. Per millimetre square (N/mm2)
B. Per metre square (N/m2)
C. Per centimetre square (N/cm2)
D. None of these
The vertical reaction for the arch is________________?
A. wa/2l
B. wa/l
C. wl/a
D. wa²/2l
Flat spiral springs_______________?
A. Are supported at outer end
B. Consist of uniform thin strips
C. Are wound by applying a torque
D. All the above
In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is__________________?
A. L/4
B. L/3
C. L/2
D. L/5
Pick up the correct statement from the following?
A. In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
B. In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
C. In a loaded beam, the moment at which the first yield occurs is called yield moment
D. All the above
The stiffness of the close coil helical spring is_________________?
A. d4N/8D3n
B. 4D3N/d4n
C. d4N/4D3n
D. 8D3N/d4n
The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is___________________?
A. 1/4
B. 1/8
C. 1/2
D. 1/3