Theory of Structures MCQ Practice Questions (Civil Eng) Set 1

Pick up the correct statement from the following:


Options are :

  • The planes of principal stresses are inclined at 45 to the neutral plane
  • The bending stress in a section is zero at its neutral axis and maximum at the outer fibres
  • The bending stress at the outer fibres, is known as principal stress
  • The shear stress is zero at the outer fibres and maximum at the neutral axis
  • All the above

Answer :All the above

Theory of Structures MCQ Practice Questions (Civil Eng) Set 2

The locus of reaction of a two hinged semi-circular arch, is:


Options are :

  • Circle
  • Parabola
  • Straight line
  • Hyperbola

Answer :Straight line

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 x 106 N/mm^(2), the deflection of the free end, is:


Options are :

  • 2 mm
  • 3 mm
  • 5 mm
  • 4 mm
  • 6 mm

Answer :5 mm

A rectangular column shown in the given figure carries a load P having eccentricities ex and ev along X and Y axes. The stress at any point (x, y) is:


A.


B.


C.


D.


Options are :

  • C
  • D
  • A
  • B

Answer :A

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 1

A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm^(2). If the slope at the ends is 0.005 radian and the value of E = 0.2 x 106 N/mm^(2), the depth of the joist, is


Options are :

  • 200 mm
  • 250 mm
  • 400 mm
  • 300 mm
  • 350 mm

Answer :400 mm

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.


B.


C.


D.


E.


Options are :

  • C
  • A
  • D
  • E
  • B

Answer :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.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :C

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

In the truss, the force in the member AC is:



A.

6.25 t compressive


B.

8.75 t tentile


C.

t tensile


D.

t compressive


Options are :

  • B
  • C
  • D
  • A

Answer :D

The greatest load which a spring can carry without getting permanently distorted, is called:


Options are :

  • Proof stress
  • Prof resilience
  • Stiffness
  • Proof load

Answer :Proof load

A steel bar 5 m x 50 mm is loaded with 250, 000 N. If the modulus of elasticity of the material is 0.2 MN/mm^(2) and Poisson's ratio is 0.25, the change in the volume of the bar is:


Options are :

  • 2.125 cm^(3)
  • 3.125 cm^(3)
  • 1.125 cm^(3)
  • 4.125 cm^(2)

Answer :3.125 cm^(3)

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 2

The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is:


Options are :

  • 3.0
  • 1.5
  • 2.5
  • 2.0
  • 1.0

Answer :3.0

For beams of uniform strength, if depth is constant:


A.

Width b ? M


B.

Width b ? ?M


C.

Width b ? 3 ?M


D.

Width b ?


Options are :

  • A
  • B
  • C
  • D

Answer :A

The S.F. diagram of a loaded beam shown in the given figure is that of


Options are :

  • A cantilever with a uniformly distributed load
  • A simply supported beam with uniformly distributed load
  • A simply supported beam with isolated central load
  • A cantilever with an isolated load at the free end

Answer :A cantilever with a uniformly distributed load

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

The equivalent length of a column of length L, having both the ends hinged, is:


A.

2L


B.

L


C.


D.


Options are :

  • A
  • D
  • C
  • B

Answer :B

The forces in the members of simple trusses, may be analysed by:


Options are :

  • Method of joints
  • Method of sections
  • Graphical method
  • All the above

Answer :All the above

is the equation of Euler's crippling load, if:


Options are :

  • One end is fixed and other end is free
  • Both the ends are fixed
  • Both the ends are hinged
  • One end is fixed and other end is hinged

Answer :One end is fixed and other end is free

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

The yield moment of a cross section is defined as the moment that will just produce the yield stress in:


Options are :

  • The outer most fibre of the section
  • The inner most fibre of the section
  • The fibre everywhere
  • The neutral fibre of the section

Answer :The outer most fibre of the section

Flat spiral springs:


Options are :

  • All the above
  • Consist of uniform thin strips
  • Are used in clock-work mechanism
  • Are wound by applying a torque
  • Are supported at outer end

Answer :All the above

The maximum B.M. due to an isolated load in a three hinged parabolic arch, (span l, rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance:


A.


B.


C.


D.


Options are :

  • A
  • C
  • D
  • B

Answer :C

Concrete Technology MCQ Practice Questions (Civil Eng) Set 3

A compound bar consists of two bars of equal length. Steel bar cross-section is 3500 mm^(2) and that of brass bar is 3000 mm^(2). These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm^(2) and Eb = 0.1 MN/mm^(2), the stresses developed are:


Options are :

  • ?b = 8 N/mm^(2), ?s = 16 N/mm^(2)
  • ?b = 6 N/mm^(2), ?s = 12 N/mm^(2)
  • ?b = 10 N/mm^(2), ?s = 20 N/mm^(2)
  • ?b = 5 N/mm^(2), ?s = 10 N/mm^(2)

Answer :?b = 10 N/mm^(2), ?s = 20 N/mm^(2)

Pick up the correct statement from the following:


Options are :

  • For a uniformly distributed load, the shear force varies linearly
  • For a uniformly distributed load, B.M. curve is a parabola
  • For a load varying linearly, the shear force curve is a parabola
  • For a load varying linearly, the B.M. curve is a cubic parabola
  • All the above

Answer :All the above

The ratio of shear stress and shear strain of an elastic material, is:


Options are :

  • None of these
  • Modulus of Rigidity
  • Young's Modulus
  • Shear Modulus
  • Modulus of Elasticity

Answer :Modulus of Rigidity Shear Modulus

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 x 10^(5) N/mm^(2)) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm2, the angle of twist in radians, is:


Options are :

  • 0.0025
  • 0.003
  • 0.005
  • 0.002
  • 0.001

Answer :0.0025

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.


B.


C.


D.


E.


Options are :

  • E
  • A
  • B
  • D
  • C

Answer :E

If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span:


Options are :

  • Horizontal thrust is wl^(2)/8h
  • S.F. will be zero throughout
  • All the above
  • B.M. will be zero throughout

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 7

The vertical reaction for the arch is:


A.


B.


C.


D.


Options are :

  • D
  • A
  • C
  • B

Answer :A

The moment of inertia of a triangular section (height h, base b) about its base, is:


A.


B.


C.


D.


Options are :

  • D
  • B
  • A
  • C

Answer :C

The area of the core of a column of cross sectional area A, is:


A.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :D

Hydraulics MCQ Practice Questions (Civil Engineering) Set 2

A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100C. If ?steel = 0.000012/C, Esteel = 0.2 MN/mm2, the tensile force developed at a temperature of 50C, is:


Options are :

  • 100 N/mm^(2)
  • 150 N/mm^(2)
  • 80 N/mm^(2)
  • 120 N/mm^(2)

Answer :120 N/mm^(2)

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.


B.


C.


D.


Options are :

  • A
  • C
  • D
  • B

Answer :C

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