UPSC Civil Service Exam Questions - Engineering

Q1:

Which one of the following statements is correct ? The number of unknowns to be determined in the stiffness method is equal to :

A the static indeterminacy

B the kinematic indeterminacy

C the sum of kinematic indeterminacy and static indeterminacy

D two times the number of supports

ANS:C - the sum of kinematic indeterminacy and static indeterminacy

Option (B) is correct. The stiffness or displacement method of analysis is based on kinematic degree of indeterminacy degrees of freedom at joint.