Civil Engineering - UPSC Civil Service Exam Questions - Discussion

35. 

The degree of indeterminacy of the beam given in the given figure is

[A]. zero
[B]. one
[C]. two
[D]. three

Answer: Option D

Explanation:

No answer description available for this question.

Penny said: (Apr 10, 2017)  
I think Option C is correct.

Dev said: (Sep 16, 2017)  
B is correct.

Mahesh said: (Jan 2, 2018)  
Answer must be B.

Dolly said: (Mar 25, 2018)  
B is the correct answer.

Phani said: (Apr 30, 2018)  
Please explain it.

Dolly said: (Aug 22, 2018)  
Indeterminacy = no.of unknown forces - no. of equilibrium equation.
No.of unknown forces = 3(for fixed) +2(one for each roller support).
Indeterminacy = 5 - 4(3(no. of equilibrium equation) + 1 for internal hinge).
= 1.

Umesh Jit said: (Sep 15, 2018)  
Great explanation, Thanks @Dolly.

Rajeev said: (Jul 5, 2019)  
B should be the correct answer.

Prasi said: (Jan 11, 2020)  
Degree of indeterminacy = r-3+ no of hinges.
= 5-3+1 = 3.

Or degree= 3m + r -3j + n.
= 3(3) +5 -3(4) +1 = 3.

Nirmal said: (May 7, 2020)  
Unknown reactions = fix(3)+rollers(2) + internal hinge (1 horizontal reaction) = 6.
D. O. Indeterminacy =6-3=3 =>(D).

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