Civil Engineering MCQJE Level Civil Engineering
The degree of static indeterminacy of a fixed-fixed beam is:
Strength of MaterialsStrength of MaterialsEASY
Choose the correct answer
A
1
B
2
C
3
D
0
Correct Answer
C. 3
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A fixed-fixed beam has 6 reactions (2 fixed supports × 3 each: horizontal, vertical, moment) and 3 equilibrium equations. DSI = 6 − 3 = 3. For propped cantilever: 5 − 3 = 2. For simply supported: 4 − 3 = 1 (no — actually 3 − 3 = 0 for pin-roller). Fixed-fixed is 3rd degree indeterminate.
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