The 'displacement method' of structural analysis (stiffness method) takes as unknowns:
Choose the correct answer
Redundant forces only
Joint displacements and rotations — stiffness assembled from member stiffness matrices
Member lengths
Load values
Correct Answer
B. Joint displacements and rotations — stiffness assembled from member stiffness matrices
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Stiffness (displacement) method: primary unknowns = joint displacements and rotations. Conditions: equilibrium at each joint (ΣM=0, ΣV=0, etc.). Generates [K]{d}={F} stiffness equation. Suitable for computer implementation (matrix method, FEM). Contrasts with force (flexibility) method where redundant forces are unknowns. Degree of kinematic indeterminacy = number of unknowns in stiffness method.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to JE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.