41.
The minimum horizontal distance between two parallel main reinforcing bars, is

43.
If in a pin-jointed plane frame (m + r) > 2j, then the frame is
(Where ‘m’ is number of members, ‘r’ is reaction components and ‘j’ is number of joints)

44.
A rigid-jointed plane frame is stable and statically determinate if (where m is number of members, r is reaction components and j is number of joints)

46.
The degree of static indeterminacy of a pin-jointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints)

48.
When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would

49.
Pick up the incorrect statement from the following: