$($estion No$.2(5$ Marks$)$

A mechanism can be considered as a structure when its degree of freedom is:

a$.1$

b$.-1$

c$.0$

d$.2.$

In a slider$-$crank mechanism the kinematic pairs are:

a$.$ Two sliding and two turning

b$.$ One sliding and two turning

c$.$ Three turning

d$.$ Four sliding

A kinematic chain is known as mechanism when:

a$.$ None of the links is fixed

b$.$ Two of the links are fixed

c$.$ One of the links is fixed

d$.$ All the links are fixed

The direction of the linear velocity on a link with respect to a point on the same linke is:

a$.$ Parallel to the link

b$.)$ Perpendicular to the link

c$.$ At $45$ with respect to the link

d$.$ None of the above

The magnitude of the linear velocity of a link $AB$ rotating at constant rotational speed $$ is:

a$.{}^{2}AB$

b$.AB$

c$.(.)AB$

d$.A{B}^2$

The component of acceleration of a point $B$ on a link $AB$ Parallel to the velocity of point $B$ is called:

a$.$ Radial component

$($b$)$ Tangential component

c$.$ Coriolios component

d$.$ None of the above

The angular acceleration of a rigid link $AB$ rotating at a speed $$ is:

a$.\frac{a_{\frac{?}{\text{B}\text{a}\text{r}}}}{A}B$

b$.\frac{a_{\text{B}\text{a}\text{t}}}{A}B$

c$.\frac{V_{BA}}{A}B$

$($d$.)\frac{V_{AB}^2}{A}B$