# Civil engineer objective questions – Structural Analysis and Design (Section-2)

81. The shape of bending moment diagram over the length of a beam, carrying a uniformly distributed load is

a) linear                                                 b) parabolic

c) cubical                                               d) circular

82. In any beam, there is acting uniformly moment then its curve is

a) circular arch                                    b) parabolic arch

c) both (a) and (b) of above             d) none of the above

83. The shape of bending moment diagram over the length of a beam, carrying a uniformly increasing load is

a) linear                                              b) parabolic

c) cubical                                            d) circular

84. The maximum bending moment due to moving load on a simply supported beam occurs

a) at the mid span                           b) at the supports

c) under the load                            d) none of the above

85. For a simply supported beam with a central load, the bending moment is

a) least at the centre                    b) least at the supports

c) maximum at the supports      d) maximum at the center

86. For a cantilever with a uniformly distributed load, w over its entire length L, the maximum bending moment is

a)                                          b)

c)                                         d)

87. The maximum deflection in the cantilever beam carrying a point load (W) at end is

a)                                         b)

c)                                         d)

88. In a cantilever beam a point load is applied at the free end. Which one is correct?

a) SF is uniform throughout the beam

b) SF varies linearly from free end to fixed end

c) BM is uniform throughout the beam

d) none of the above

89. Which of the following end conditions permits the displacement in any direction and also rotation

a) fixed end                                              b) hinged end

c) roller end                                             d) free end

90. Which of the following section is the most efficient in carrying bending moments ?

a) I-section                                              b) rectangular-section

c) T-section                                            d) circular-section

91. In an I-section almost all the shear force is taken by

a) top flange                                          b) web

c) bottom flange                                  d) none of the above

92. The bending moment is maximum on a section where shear force

a) is maximum                                     b) is minimum

c) is equal                                             d) changes sign

93. In a continuous bending moment curve the point where it changes sign is called

a) point of inflexion

b) point of contraflexture

c) point of the virtual hinge

d) all of the above

94. For any type of loading, the no. of point of contra flexure in a simply supported beam is

a) one                                                      b) two

c) zero                                                     d) three

95. The moment diagram for a cantilever carrying the concentrated load at its free end will be

a) triangle                                               b) rectangle

c) parabola                                             d) cubic parabola.

96. Shear force for a cantilever carrying a uniformly distributed load over its whole length is

a) triangle                                               b) rectangle

c) parabola                                             d) cubic parabola.

97. When a rectangular beam is loaded longitudinally, shear develops

a) bottom fibre                                      b) top fibre

c) neutral axis                                        d) every horizontal plane

98. When a rectangular beam is loaded transversely, the maximum compressive force develops on

a) bottom fibre                                     b) top fibre

c) neutral axis                                       d) every horizontal plane

99. If the shear force along a section of a beam is zero, the bending moment at the section is

a) zero                                                   b)minimum

c) maximum                                         d) all of the above

100. The moments in the arch will be zero, if

a) ends are hinged

b) ends are fixed

c) the arch axis coincides with the line of thrust

d) the arch axis is parallel to the line of thrust

101. The arch meant for supporting uniformly distributed loads, to avoid any bending moment must be

a) circular                                                       b) elliptical

c) parabolic                                                    d) none of the above

102. In any determinate structure, vertical load fall on the

a) hinge                                               b) rollar

c) fixed                                                d) all of the above

103. Three hinged arch is a …..structure.

a) indeterminate

b) determinate

c) both (a) and (b) of above

d) none of the above

104. Three hinged arch will have three hinges

a) two at the two ends and one any where in between the two

ends

b) two at the two ends and one at the crown only

c) one hinge at the crown essentially and the other two any

d) none of the above

105. The value of horizontal thrust produced in an arch is

106. The amount of bending moment induced in a cable is

a) unity                                             b) zero

c) two                                               d) all of the above