71. Slenderness ratio of a 5 m long column hinged at both ends and having a circular cross-section with diameter 160 mm is
a) 31.25
b) 62.5
c) 100
d) 125
Ans: d
72. The effect of arching a beam is
a) to reduce bending moment throughout
b) to increase bending moment throughout
c) to increase shear force
d) to decrease shear force
Ans: a
73. Internal forces at every cross-section in a arch are
a) nornal thrust and shear force
b) shear force and bending moment
c) normal thrust and bending moment
d) normal thrust, shear force and bending moment
Ans: d
74. According to Eddy's theorem, the vertical intercept between the linear arch and the centre line of actual arch at any point represents to some scale
a) bending moment
b) shear force
c) normal thrust
d) deflection
Ans: a
75. Due to rise in temperature in a three hinged arch, induced stress is
a) direct compressive
b) direct tensile
c) shear
d) none of the above
Ans: d
76. In a three hinged arch, the linear and the actual arch meet at
a) at least three points
b) at least two points
c) all points irrespective of loading
d) nowhere
Ans: a
77. If a three hinged parabolic arch carries a uniformly distributed load over the entire span, then any section of the arch is subjected to
a) normal thrust only
b) normal thrust and shear force
c) normal thrust and bending moment
d) normal thrust, shear force and bending moment
Ans: a
78. Three hinged arch is
a) statically indeterminate by one degree
b) statically indeterminate by two degrees
c) statically determinate
d) unstable structure
Ans: c
79. A linear arch has
a) normal thrust only
b) shear force only
c) bending moment only
d) normal thrust and shear force
Ans: a
80. A three hinged arch is carrying uniformly distributed load over the entire span. The arch is free from shear force and bending moment if its shape is
a) circular
b) parabolic
c) elliptical
d) none of the above
Ans: b
a) 31.25
b) 62.5
c) 100
d) 125
Ans: d
72. The effect of arching a beam is
a) to reduce bending moment throughout
b) to increase bending moment throughout
c) to increase shear force
d) to decrease shear force
Ans: a
73. Internal forces at every cross-section in a arch are
a) nornal thrust and shear force
b) shear force and bending moment
c) normal thrust and bending moment
d) normal thrust, shear force and bending moment
Ans: d
74. According to Eddy's theorem, the vertical intercept between the linear arch and the centre line of actual arch at any point represents to some scale
a) bending moment
b) shear force
c) normal thrust
d) deflection
Ans: a
75. Due to rise in temperature in a three hinged arch, induced stress is
a) direct compressive
b) direct tensile
c) shear
d) none of the above
Ans: d
76. In a three hinged arch, the linear and the actual arch meet at
a) at least three points
b) at least two points
c) all points irrespective of loading
d) nowhere
Ans: a
77. If a three hinged parabolic arch carries a uniformly distributed load over the entire span, then any section of the arch is subjected to
a) normal thrust only
b) normal thrust and shear force
c) normal thrust and bending moment
d) normal thrust, shear force and bending moment
Ans: a
78. Three hinged arch is
a) statically indeterminate by one degree
b) statically indeterminate by two degrees
c) statically determinate
d) unstable structure
Ans: c
79. A linear arch has
a) normal thrust only
b) shear force only
c) bending moment only
d) normal thrust and shear force
Ans: a
80. A three hinged arch is carrying uniformly distributed load over the entire span. The arch is free from shear force and bending moment if its shape is
a) circular
b) parabolic
c) elliptical
d) none of the above
Ans: b
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