Question

The degree of kinematic indeterminacy of the rigid frame with clamped ends at A and D shown in the fig. is_______.

• A. 3
• B. 2
• C. 4
• D. Zero

Answer 1

The correct option is A 3



$D_k=3j-r-m^{\prime }$
$j\to \text{no.of joints}=4$
$r\to \text{no.of reactions}=6$
$m^{\prime }\to \text{no. of inextensible member}=3$

$D_k=3\times 4-6-3=3$