This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Three-Hinged Arch”.
1. Top most part of an arch is called ________
a) Sofit
b) Crown
c) Center
d) Abutment
View Answer
Explanation: Top most part is called crown. Other options are name of other part.
2. Which of the following is true in case of stone brick?
a) They are weak in compression and tension
b) They are good in compression and tension
c) They are weak in compression and good in tension
d) They are good in compression but weak in tension
View Answer
Explanation: Stone brick is very good in compression but weak in tension.
3. Shape of three hinged arch is always :-
a) Hyperbolic
b) Circular
c) Parabolic
d) Can be any arbitrary curve
View Answer
Explanation: Three hinged arch is always made in parabolic shape.
4. Internal bending moment generated in a three hinged arch is always:-
a) 0
b) Infinite
c) Varies
d) Non zero value but remains constant
View Answer
Explanation: Due to its geometry, bending moment always comes out to be zero in 3 hinged arches.
5. Internal shear force generated in a three hinged arch is always:-
a) 0
b) Infinite
c) Varies
d) Non zero value but remains constant
View Answer
Explanation: Due to its geometry, shear force always comes out to be zero in 3 hinged arches.
6. What is the degree of indeterminacy of a fixed arch?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: It is indeterminate to 3 degrees.
7. What is the degree of indeterminacy of a two hinged arch?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: It is indeterminate to 2 degrees. It consists of two pin supports at both of its ends.
8. In real life, bending stresses are zero in a three hinge arch.
State whether the above statement is true or false.
a) True
b) False
View Answer
Explanation: In real life, loads are moving which results in generation of bending stresses.
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