This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Analysis of Beams-1”.
1. While using slope deflection method, in which direction is the moment taken as positive?
a) Clockwise
b) Anti-clockwise
c) Depends upon case
d) Depends upon loading
View Answer
Explanation: Clockwise moments are always taken as positive while these equations.
2. While drawing BMD after using these equations, in which direction is moment taken as positive?
a) Clockwise
b) Anti-clockwise
c) Depends upon case
d) Depends upon loading
View Answer
Explanation: While drawing BMD after using these equations we use our usual notations for sign of moments.
3. If support B settles by 1mm downward, what is direction of rotation at point A?
a) +ve
b) -ve
c) Can’t say
d) Depends upon loading at point A
View Answer
Explanation: In this case, AB rotates clockwise about point A, so rotation is +ve.
4. If support B settles by 1mm downward, what is direction of rotation at point B?
a) +ve
b) -ve
c) Can’t say
d) Depends upon loading at point A
View Answer
Explanation: In this case, AB rotates clockwise about point B, so rotation is +ve.
5. If support A settles by 1mm downward, what is direction of rotation at point A?
a) +ve
b) -ve
c) Can’t say
d) Depends upon loading at point A
View Answer
Explanation: In this case, AB rotates anti clockwise about point A, so rotation is +ve.
6. If support A settles by 1mm downward, what is direction of rotation at point B?
a) +ve
b) -ve
c) Can’t say
d) Depends upon loading at point A
View Answer
Explanation: In this case, AB rotates anti clockwise about point B, so rotation is +ve.
7. If a beam has 4 external supports, then how many parts would it be divided in case of using slope deflection equations?
a) 0
b) 1
c) 2
d) 3
View Answer
Explanation: We divide each part between two supports, so there will be 3 parts as 4 supports are there.
8. How many sde (slope deflection equations) are possible if 4 supports are there?
a) 0
b) 3
c) 4
d) 6
View Answer
Explanation: Each part will give 2 unique equations, so there will be a total of 6 equations.
9. Initially, how many total unknowns will be there in 6 equations?
a) 3
b) 6
c) 9
d) 12
View Answer
Explanation: Total 9 unknowns will be there, 2 rotations and one deflection in each part.
10. After writing sde, what is the second step?
a) Use stress-strain relationship
b) Use equilibrium equations
c) Use compatibility equations
d) Can’t say
View Answer
Explanation: After writing sde, we use equilibrium equations so as to lessen the no. of unknowns.
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